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Concremote

1. Example three celled bridge cross section A Slab sensor B Sensing element wall C Measuring point of the cable For cycles of up to 10 linear metres in length measure the critical points in at least two cross sectional planes Further sensors are recommended to be used every additional 5 linear metres Bridge edge beams Slab sensors can be used in the manufacture of edge beams For up to 15 linear metres 2 sensors are nec essary Further sensors are recommended to be used every additional 10 linear metres 4 Q a A Slab sensor 24 User Information Concremote Free cantilever construction Concremote helps you determine the earliest possible time of pre stressing the concrete or of stripping the cantilever forming traveller BEEP II 98053 312 01 A Slab sensor floor slab roadway slab B Sensing element wall walls C Measuring point of the cable walls 999808402 03 2014 doka User Information Concremote Tunnel formwork In tunnel forming Concremote is used for determining early concrete strengths as well as to ensure sufficient strength of the concrete in the bottom slab for the ground anchors DIE AL A ININ i TED LIN nA BRET Slab sensor B Sensing element wall C Measuring point of the cable IS Important note The smallest compressive concrete strength that can be
2. an action actual load service load characteristic e g dead weight live load concrete pressure wind Partial factor for actions in terms of load F force e g for dead weight live load concrete pres sure wind Values from EN 12812 Comparison of the safety concepts example Permissible stress design EC DIN concept 115 5 KN 90 lt 105 90 kN 60 lt 70 kN a 98013 100 98013 102 Factual lt F permissible Eg lt Ra A Utilisation factor doka 999808402 03 2014 Introduction The widely used Permissible stress design compar ing the actual stresses with the permissible stresses has been superseded by a new safety concept in the EC The EC contrast the actions loads with the resistance capacity The previous safety factor in the permissible stresses is now divided into several partial factors The safety level remains the same Ra Design value of the resistance resistance design Design capacity of cross section Vera Nra Mra R Steel Rk Timber Ra lt YM YM Rk Characteristic value of the resistance e g moment resistance to yield stress YM Partial factor for a material property in terms of material M material e g for steel or timber Values from EN 12812 Kmoa Modification factor only for timber to take account of the moisture and the duration of load action e g for Doka beam H20 Va
3. are safely transferred Pouring Do not exceed the permitted fresh concrete pres sures Over high pouring rates overload the form work cause greater deflection and risk breakage Stripping out the formwork Do not strip out the formwork until the concrete has reached sufficient strength and the person in charge has given the order for the formwork to be stripped out When stripping out the formwork never use the crane to break concrete cohesion Use suitable tools such as timber wedges special pry bars or system features such as Framax stripping corners When stripping out the formwork do not endanger the stability of any part of the structure or of any scaffolding platforms or formwork that is still in place Introduction Transporting stacking and storing Observe all regulations applying to the handling of formwork and scaffolding In addition the Doka slinging means must be used this is a mandatory requirement Remove any loose parts or fix them in place so that they cannot be dislodged or fall free All components must be stored safely following all the special Doka instructions given in the relevant sections of this manual Maintenance Only original Doka components may be used as spare parts Repairs may only be carried out by the manufacturer or authorised facilities Miscellaneous We reserve the right to make alterations in the interests of technical progress User Info
4. the faster the strength development of the concrete The measured data temperature measurements from the structure member are transmitted to the com puting centre via the mobile communications network as data packets At the computing centre they are automatically evaluated by the maturity monitoring method using calibration measurement A separate calibration measurement is needed for each different grade of concrete to be measured at the site This calibration measurement must be performed either by the clients themselves by the concrete sup plier or by an appointed test laboratory ideally using the calibration box For this purpose six cubes are stored under defined partially adiabatic conditions The cubes are tested at different times depending on the target value in N mm2 MPa for stripping curing etc Each of these tests yields a compressive strength value and the temperature value associated with it From this calibration measurement the relationship can be computed between the strength and the matu rity of the grade of concrete concerned The Concremote software continuously provides these data and strengths to its users enabling them to live monitor the strength development in a specific structure member As soon as the target value in N mm MPa is reached the next steps stripping pre stressing etc can be taken Precise measurement facilitates accurate control Efficient construction process
5. time gains When we advise and support you right from the word go we can make sure that the right formwork systems are chosen and then used as planned This lets you achieve optimum utilisation of the formwork equipment and effec tive forming operations because your workflows will be correct Maximised workplace safety The advice and support we can give you in how to use the equip ment correctly and as planned leads to greater safety on the job Transparency Because our services and costs are completely transparent there is no need for improvisation dur ing the project and no unpleas ant surprises at the end of it Reduced close out costs Our professional advice on the selection quality and correct use of the equipment helps you avoid damage and minimise wear and tear doka 999808402 03 2014 System description Concrete monitoring how it works how it is used Measuring concrete strength in real time Concremote is a service for performing non destructive real time measurement of concrete strengths in struc ture members floor slabs walls beams on the site This service comprises two parts measuring sensors data management and processing The sensors placed on the structure member continu ously measure the heat development of the concrete which is mainly influenced by the hydration heat of the cement and by ambient temperatures The more intense the heat development
6. 999808402 03 2014 en GB The Formwork Experts Concremote User Information Instructions for assembly and use Method statement Introduction User Information Concremote by Doka Industrie GmbH A 3300 Amstetten 2 999808402 03 2014 doka User Information Concremote Contents Introduction 4 Elementary safety warnings 7 Eurocodes at Doka 8 Doka services 10 System description 14 Handling 14 How to install and mount the sensors 18 How to use the Concremote software web portal 19 What to do in case of a sensor failure 20 General use 22 Areas of use 26 Transporting stacking and storing 28 Reshoring props concrete technology and striking 31 Component overview doka 999808402 03 2014 Introduction Introduction Elementary safety warnings User target groups This manualis aimed at all persons who will be work ing with the Doka product or system that it describes It contains information on the standard design for setting up this system and on correct compliant uti lisation of the system All persons working with the product described herein must be familiar with the contents of this man ual and with all the safety instructions it contains Persons who are incapable of reading and under standing this booklet or who can do so only with dif ficulty must be instructed and trained by the cus tomer The customer is to ensure that the information mate rials provid
7. ay value after only 3 days regardless of the formulation of the concrete The increase in the elastic deformation taking place in the new concrete is thus only negligible The creep deformation which only finally ceases after several years is several times more than the elastic deformation Early stripping e g after 3 days instead of 28 thus only leads to an increase in the total deformation of less than 5 The part of this deformation accounted for by creep deformation however may be anything between 50 and 100 of the standard value due to such variable influences as the strength of the aggregates and the atmospheric humidity This means that the total deflec tion of the floor slab is practically independent of the time at which the formwork was stripped out Cracks in new concrete The bonding strength between the reinforcement steel and the concrete develops more rapidly in the new con crete than does its compressive strength This means that early stripping does not have any negative influ ence upon the size and distribution of cracks on the ten sion side of reinforced concrete constructions Other cracking phenomena can be countered effec tively by appropriate curing methods Curing of new concrete New site placed concrete is exposed to influences which may cause cracking and slow down its strength development premature drying over rapid cooling in the first few days excessively low temp
8. d smooth functioning of the software and hardware If data transmission is interrupted the registered users will be notified by e mail Reasons for failure and what to do Failure due to connectivity problems In areas with a poor or with no network connection a microwave link can be set up by the user If transmission temporarily fails the sensor will store the measured data for a period of 24 hours and trans mit them once the connection is up again In some cases it may be sensible to remove the _ sensor from where it is installed and to tempo rarily put it in a location with better connectivity for data transmission After this the sensor can be fitted back to the structure member Failure due to low battery power With no battery power the sensors do not save any data at all Therefore in case of a failure due to low bat tery power the battery must be replaced as quickly as possible If data transmission is interrupted for too long the measurement may be lost ly Itis therefore recommended to always store ze spare batteries at the building site Other failures In case of a failure that is not due to connectivity prob lems or low battery power resetting the sensor may solve the problem Slab sensor hold the sensor with its tip pointing upwards for 1 minute Cable sensor unplug the cable and leave it unplugged for 1 minute If the problem continues please notify the
9. e the benefits of Doka multi trip packaging on your site Multi trip packaging such as containers stacking pal lets and skeleton transport boxes keep everything in place on the site minimise time wasted searching for parts and streamline the storage and transport of sys tem components small items and accessories Doka skeleton transport box 1 70x0 80m N 10 ff K 4 Nr NOX ag D Nn oe A ge i 272 NIN M Ie 1224 p gt AN Bu CA DLAME vv L i il f Bu a WE l D l 2 a Storage and transport devices for small items durable stackable Suitable transport appliances crane pallet stacking truck forklift truck 26 User Information Concremote To make the Doka skeleton transport box easier to load and unload one of its sidewalls can be opened Max load 700 kg Permitted imposed load 3150 kg IS Multi trip packaging ite
10. ed by Doka e g User Information book lets Instructions for Assembly and Use Operating Instruction manuals plans etc are available to all users and that they have been made aware of them and have easy access to them at the usage location In the relevant technical documentation and form work utilisation plans Doka shows the workplace safety precautions that are necessary in order to use the Doka products safely in the usage situations shown In all cases users are obliged to ensure compliance with national laws Standards and rules throughout the entire project and to take appropriate additional or alternative workplace safety precautions where necessary Hazard assessment The customer is responsible for drawing up docu menting implementing and continually updating a hazard assessment at every job site This document serves as the basis for the site spe cific hazard assessment and for the instructions given to users on how to prepare and utilise the sys tem It does not substitute for these however User Information Concremote Remarks on this document This manual can also be used as a generic method statement or incorporated with a site specific method statement Many of the illustrations in this booklet show the situation during formwork assembly and are therefore not always complete from the safety point of view Any safety accessories not shown in these illustra tions must still be used by the customer i
11. eratures or frost mechanical damage to the surface of the concrete hydration heat etc The simplest precaution is to leave the formwork on the concrete surface for longer As well as the familiar extra curing measures this measure should be carried out any case doka 999808402 03 2014 Reshoring props concrete technology and striking Removing the load from the formwork from wide spanned floor slabs with support centres of over 7 5m In the case of thin wide spanned concrete floor slabs e g in multistorey car parks the following points must be remembered When the load is taken off the floor props the floor props that are still in place are briefly subjected to additional loads This may lead to overloading and to the floor props being damaged Please consult your Doka technician IEY The basic rule is Stress release should always be carried out working from one side towards the other or from the middle of the floor slab mid span towards the slab edges For wide spans this procedure MUST be fol lowed Stress release must NEVER be carried out from both sides towards the middle JS 98059 105 98059 105 Effective floor slab spans of 7 50 m and over A Load redistribution Reshoring props concrete technology striking User Information Concremote Weighted maturity method This procedure for determining the strength of the con crete with reference t
12. es The strength values computed by Concremote accord ing to the maturity method by de Vree permit targeted control of forming and concreting operations in real time Concremote provides very accurate results on the basis of reference values which in turn are based on the cube strengths obtained from the calibration meas urement It records profiles of both the concrete temperature and the ambient temperature around the sensors 10 User Information Concremote Highly versatile 2 types of sensor The Concremote slab sensor and the Concremote cable sensor can be used in a targeted manner in all areas of cast in place building construction Cast in place concrete floor slabs Wall and column formwork Crane climbed and automatic climbing projects Bridge and tunnel building sites Mass concrete structures Easy to use Wireless data transmission and easy access from anywhere The user friendly software can be used effortlessly and can be accessed from any internet enabled device at any time Certainty for the construction project Helps you take decisions and records your data Compliant decision making based on the measured data Strength development can be estimated early on from graphs Printing and storage of data for long term verifica tion Exact results enabled by calibration The calibration box is used to calibrate the different grades of concrete used These calibration meas urements
13. ese data will be entered in the software later Adding the measurement in the Concremote software gt For adding a new structure member or new meas urement in the software start the Project Manager Sensors are assigned to a structure member by means of their sensor number and the recorded installation time 999808402 03 2014 doka User Information Concremote Analysis The measured data is automatically analysed Users can access various graphs time compressive strength chart time temperature chart and view data in list form The measurement results can be printed and exported Data analysis General The web based programme is supported by most inter net enabled devices and can be accessed from your browser at concremote doka com pes 8 Use gt Log in at concremote doka com by entering the login data you have received by e mail gt Start the Project Manager and add a measurement Add the structure members e g Member A Add the measurements e g Floor slab GF Assign the sensors sensor date installation time gt Read the data IS Important note If a battery fails data will be lost In case ofa transmission error the measured data will be stored for a minimum of 24 hours doka 999808402 03 2014 Use Remedies Concremote shows the strength development of a spe cific previously cal
14. essory The cable sensor and the slab sensor both come with a battery The battery life is approx 4 months For details on how to change the battery please see the sections How to use slab sensors cable sensors Lithium ion polymer battery lt 100 kW Concremote calibration box Easy calibration of concrete Measuring device and cube mould included Use of standard cubes sized 15x15x15 cm 2 boxes 6 concrete cubes are needed for calibra tion For multiple use with no lost parts Important note A fully charged storage battery lasts 4 weeks charger is included with the calibration box Ensure that connectivity of the calibration box is maintained at all times The quality of the connection can be checked online Calibration is performed either by the user himself or by someone appointed by the user The support team provides assistance in this process 13 Handling User Information Concremote How to install and mount the sensors IS Important note Sensors and accessories must be installed and mounted from safe workplaces only Do not treat the sensors with release agent Do not apply force to the sensors when installing or removing them Protect the sensors against theft and mechanical damage Each sensor has its own serial number 98084 000 A Serial number of the sensor IS Important note Check at regular intervals if all component
15. ght 24 cm doka 999808402 03 2014 31 Near to you worldwide Doka is one of the world leaders in developing manu facturing and distributing formwork technology for use in all fields of the construction sector With more than 160 sales and logistics facilities in over 70 countries the Doka Group has a highly efficient dis tribution network which ensures that equipment and technical support are provided swiftly and profession ally An enterprise forming part of the Umdasch Group the Doka Group employs a worldwide workforce of more than 5600 Doka GmbH Josef Umdasch Platz 1 3300 Amstetten Austria 43 7472 605 0 F 43 7472 66430 oesterreich doka com www doka com 999808402 03 2014
16. ibrated concrete mixture in the area surrounding the sensors 1 Optimising the target value The compressive strength target value should be opti mised in consultation with the structural engineer designer For assistance please refer to the section Reshoring props concrete technology and striking 0 F 2 Improving strength developments Optimising the concrete mixture Increase of the fresh concrete temperature in mixing heating of aggregates and or of mixing water Modification of the binder and or cement Modification regarding chemical and mineral admix tures Preventing heat loss of the structure member By covering the structure member with sheeting or insulation By means of enclosures and or by heating the mem ber IS Important note All of these measures must comply with the rel evant Standards and rules and may be taken only after consultation with the concrete sup plier and the structural engineer designer Find detailed information and support to assist you with the software at www doka com 21 Use Areas of use Concremote is non formwork dependent and can be used in any kind of structural concrete element For each structural element and cycle a minimum of 2 sensors is required The information given herein must be observed at all times depending on the specific area of use The installation points are determined separately for each project The examples given in
17. ipping out formwork from floors in building construction and or ask your Doka technician When is the best time to strip out the formwork The concrete strength needed before the formwork can be stripped out will depend upon the load factor a This can be read off from the following table Load factor a This is calculated by OW5 LLconstruction state q OWb OWrinishing state Dead Load factor a Slab LLa weight final state thickness OW d m oad D 2 00 3 00 4 00 5 00 KN m2 KN m2 kN m2 kN m2 kN m2 0 14 3 50 0 67 0 59 0 53 0 48 0 16 4 00 0 69 0 61 0 55 0 50 0 18 4 50 0 71 0 63 0 57 0 52 0 20 5 00 0 72 0 65 0 59 0 54 0 22 5 50 0 74 0 67 0 61 0 56 0 25 6 25 0 76 0 69 0 63 0 58 0 30 7 50 0 78 0 72 0 67 0 62 0 35 8 75 0 80 0 75 0 69 0 65 Valid for a finishing load OWfinishing 2 00 kN m and live load in the early stripped state of L on state 1 50 kN m2 OWb calculated with Vconcrete 25 kN ms OW finishing load for floor finish etc Example Slab thickness 0 20 m with a final live load of 5 00 kN m results in a load factor a of 0 54 This means that formwork removal stress release can take place once the concrete has reached 54 of its 28 day strength The load bearing capacity will then correspond to that of the finished structure cS Important note If the floor props are not stress relieved mean ing that the slab has
18. ive evaluation of the plan ning execution and time risks Optimising the preliminary work with Doka as an experienced part ner Draw up potentially winning bids by basing them on realistically calcu lated guideline prices making the right formwork choices having an optimum time calcula tion basis Controlled regular forming ations for greater efficiency resulting from realistically calculated formwork concepts Plan cost effectively right from the outset thanks to detailed offers determination of the commission ing quantities co ordination of lead times and handover deadlines 999808402 03 2014 doka Introduction User Information Concremote Concrete Construction Stage Project Close out Stage Optimum resource utilisation with assistance from the Doka Formwork Experts Workflow optimisation thanks to thorough utilisation planning internationally experienced pro ject technicians appropriate transport logistics on site support Seeing things through to a posi tive conclusion with professional support Doka Services are a byword for transparency and efficiency here offering jointly handled return of rented formwork professional dismantling efficient cleaning and recondition ing using special equipment The advantages for you thanks to professional advice and consulting Cost savings and
19. lues as given in EN 1995 1 1 and EN 13377 The permissible values communicated in Doka documents e g Qpermissible 70 KN do not correspond to the design values e g Vra 105 KN Avoid any confusion between the two gt Our documents will continue to state the per missible values Allowance has been made for the following par tial factors 1 5 YM timber 1 3 YM steel 1 1 Kmod 0 9 In this way all the design values needed in an EC design calculation can be ascertained from the permissible values Introduction Doka services Support in every stage of the project Doka offers a broad spectrum of services all with a sin gle aim to help you succeed on the site Every project is unique Nevertheless there is one thing that all construction projects have in common and that is a basic structure with five stages We at Doka know our clients varying requirements With our consulting planning and other services we help you achieve effective implementation of your formwork assignment using our formwork products in every one of these stages Project Development Stage Bidding Stage User Information Concremote Project Management Planning Stage Taking well founded decisions thanks to professional advice and consulting Find precisely the right formwork solutions with the aid of help with the bid invitation in depth analysis of the initial sit uation object
20. ly skilled persons These persons mental and physical capacity must not in any way be impaired by alcohol medicines or drugs Doka products are technical working appliances which are intended for industrial commercial use only always in accordance with the respective Doka User Information booklets or other technical docu mentation authored by Doka The stability of all components and units must be ensured during all phases of the construction work The functional technical instructions safety warn ings and loading data must all be strictly observed and complied with Failure to do so can cause acci dents and severe even life threatening damage to health as well as very great material damage Fire sources are not permitted anywhere near the formwork Heating appliances are only allowed if properly and expertly used and set up a safe dis tance away from the formwork The work must take account of the weather condi tions e g risk of slippage In extreme weather steps must be taken in good time to safeguard the equipment and the immediate vicinity of the equip ment and to protect employees All connections must be checked regularly to ensure that they still fit properly and are functioning cor rectly It is very important to check all screw type connec tions and wedge clamped joins whenever the con struction operations require particularly after excep tional events such as storms and to tighten them if necessa
21. measured using Concremote is 5 N mm For bored tunnelling check in advance whether network connectivity is available since the sen sors transmit data via GSM doka 999808402 03 2014 Other areas of use Pre stressing Monolithic concrete tanks Temperature measurement Post pouring work Road construction Saw cutting Hall floors Use 25 Transporting stacking storing The following instructions must be complied with when storing and transporting separate parts or assemblies This ensures careful safe treatment of the equipment The parts must be onloaded and off loaded trans ported and stacked in such a way that it is not possi ble for them to fall off tip over or slide apart Only set down the parts or assembly units on flat firm clean surfaces Spread angle of slinging chains max 30 Do not detach parts from the lifting straps until they have been safely set down When transporting the equipment by truck bundle the components or otherwise secure them against slippage or else transport them in suitable contain ers Protect all components against soiling as this pro longs their service life Clearly arranged logical storage arrangements reduce the time needed for assembly Using intermediate packing timbers during storage and transport lessens the risk of damage Please co ordinate arrangements for return delivery of the equipment with the Doka branch responsible Utilis
22. ms that each contain very different loads must be stacked with the heaviest ones at the bottom and the lightest ones at the top Rating plate must be in place and clearly leg ible Using Doka skeleton transport boxes 1 0x0 80m as storage units Max n of boxes on top of one another Outdoors on the site Indoors Floor gradient up to 3 Floor gradient up to 1 2 5 It is not allowed to stack empty pallets on top of one another Using Doka skeleton transport boxes 1 0x0 80m as transport devices Lifting by crane gt Only lift the boxes when their sidewalls are closed IS Multi trip packaging items only be lifted one at a time Use suitable lifting chain e g Doka 4 part chain 3 20 Do not exceed the permitted load bearing capacity Spread angle B max 30 9234 203 01 Repositioning by forklift truck or pallet stacking truck The forks can be inserted under either the broadside or the narrowside of the containers 999808402 03 2014 doka User Information Concremote Doka multi trip transport box 1 20x0 80m galv Storage and transport devices for small items durable stackable Suitable transport appliances crane pallet stacking truck forklift truck Max load 1500 kg Permitted imposed load 7900 kg IS Multi trip packaging items that each contain very different loads must be stacked with the heaviest ones at the bottom and
23. n accord ance with the applicable rules and regulations Further safety instructions especially warnings will be found in the individual sections of this document Planning Provide safe workplaces for those using the form work e g for when it is being erected dismantled modified or repositioned etc It must be possible to get to and from these workplaces via safe access routes If you are considering any deviation from the details and instructions given in this booklet or any application which goes beyond those described in the booklet then revised static cal culations must be produced for checking as well as supplementary assembly instructions Regulations industrial safety All laws Standards industrial safety regulations and other safety rules applying to the utilisation of our products in the country and or region in which you are operating must be observed at all times If a person or object falls against or into the side guard component and or any of its accessories the component affected may only continue in use after it has been inspected and passed by an expert 999808402 03 2014 doka User Information Concremote Rules applying during all phases of the assignment doka The customer must ensure that this product is erected and dismantled reset and generally used for its intended purpose in accordance with the applica ble laws Standards and rules under the direction and supervision of suitab
24. nging the battery Open the housing with a screwdriver gt Carefully remove the small side covers Unscrew the screws gt Change the battery gt Close the housing again doka 999808402 03 2014 Handling How to use Concremote cables General The cables can be used only in conjunction with the cable sensor Different kinds of cables with either one or three meas uring point s are available depending on the specific application All cables are non reusable since they remain embed ded in the concrete The cable length is chosen separately for each project Special lengths are available if needed Longer deliv ery time Make sure that the cables do not get damaged during concreting operations e g by internal vibrators lv Measurement at exposed positions in the struc _ ture member may require an auxiliary construc tion to be fitted by the user e g additional brackets Installation Determine the position of the cable sensor and fix the sensor properly gt Connect the cable to the cable sensor by turning it sensor starts data transmission Fit the cable and fasten it to the reinforcement using cable ties Dismantling 1 Disconnect the cable from the cable sensor 2 Cut the cable flush with the concrete surface 15 Handling How to use the Concremote sensing element wall General The sensing element wall is designed for multiple u
25. not been activated then the props will remain loaded with the dead weight of the floor slab When the floor above is concreted this may lead to a doubling of the load that is being applied to the floor props The floor props are not designed to cope with such an overload and the result may be dam age to the formwork the floor props and the structure 28 User Information Concremote Why put up reshoring props after stripping out the formwork After the formwork has been stripped out and the slab has been stress relieved or deshored the slab is able to bear its own weight and live loads resulting from the construction state but not the concreting loads from subsequent floor slabs The temporary reshoring serves to support the floor slab and distribute the concreting loads across several floors Positioning the reshoring props correctly Reshoring props have the job of spreading loads between the new floor slab and the floor beneath it This load distribution will depend on the relationship between the rigidities of these two floor slabs IS Ask an expert s a rule the question of using reshoring props should be referred to the responsible experts regardless of the information given above Observe all local Standards and regulations 999808402 03 2014 doka User Information Concremote Deflection of the new concrete The modulus of elasticity of the concrete has already reached more than 90 of the 28 d
26. nplug the cable from the cable sensor The power supply to the sensor is turned off and the battery life will improve Concremote cable sensor accessories Concremote cable sensor User Information Concremote Concremote sensing element wall Concremote cable 3 sensors Concremote cable 1 sensor Non reusable part f 6 37 c Designed for repeated measurementatthe 3 measuring points 1 measuring point S concrete surface Lengths 8 10 m and special lengths Lengths 0 6 1 5 m and special lengths EN Reusable Measuring points inside the concrete Measuring points inside the concrete 2 e g fixed to reinforcement e g fixed to reinforcement Non reusable part 12 999808402 03 2014 doka User Information Concremote Concremote slab sensors in detail Sensor for horizontal concrete members Battery included with the sensor battery life approx 4 months Extremely user friendly For multiple use with no lost parts Wireless Power supply by battery Easy to install floats on top of the concrete Sturdy design for site use _ Battery saving storage T Store the slab sensor with its tip pointing upwards The power supply to the sensor is turned off and the battery life will improve 1 doka 999808402 03 2014 System description Concremote battery set acc
27. o its maturity has been technically established for some 30 years now Concremote uses the maturity determination method developed by de Vree The weighted maturity is calculated as follows C 0 1T 1 245 C 2245 In C Rg weighted maturity per hour C h T mean hardening temperature of the concrete in one hour reactivity coefficient of the binding agent To determine the maturity of the concrete the weighted maturities per hour are cumulated 1 Rg 10 On the basis of the strength values from the calibration measurement each maturity level has a particular compressive strength assigned to it This method for determining the concrete strength with reference to the maturity level is addressed in the fol lowing technical documents and Standards DBV Code of Practice Concrete Formworks and Stripping Times 2006 2 DIN 1045 3 Concrete reinforced and prestressed concrete structures Part 3 2008 3 Use and benefits Based on the measured strength data the Concremote concrete monitoring system allows you to assure opti mise and speed up your building process by taking the appropriate measures Concremote can be used for the following Determining stripping times a reliable and precise manner cycle time optimisation cycle time reduc tion Process reliability decisions are based on meas ured rather than estimated values Determining curing times by means of the measu
28. provide reference data for computing the compressive strength development in relation to the maturity Before the sensors are used Concremote generates a calibration curve for each grade of concrete by means of the calibration box The smallest measurable strength is 5 N mm2 999808402 03 2014 doka User Information Concremote System description Online data access The temperature maturity and strength data will _ help you take decisions in many areas Via the user optimised web based programme users can access the data at any time Furthermore they can Crack width limitation stresses grant read and write permissions Loads Users can store data and unlock them for use by Curing measures authorised persons Pre stressing Accurate documentation ensures both certainty for the Cycle times building process and transparency Temporary reshores Construction conditions Concrete orders Team coordination etc Process scheme doka 999808402 03 2014 11 System description Concremote cable sensors in detail Sensor for universal application Battery included with the sensor battery life approx 4 months Cable with one or several measuring point s Sensing element wall Extremely flexible Measuring points inside the structure member can be chosen freely Power supply by battery Sturdy design for site use Battery saving storage U
29. red strength development Safety in using climbing formwork Measurement of the hydration heat development in structural mass elements Seasonal adjustment and optimisation of the con crete mixture based on the continuous measurement of the compressive strength development e g slow strength development in the winter period change of the concrete mixture for faster strength develop ment 30 999808402 03 2014 doka User Information Concremote Component overview kg Article n kg Article n Concremote slab sensor 1 3 583040000 Concremote Deckensensor Grey j Height 15 5 cm 9 Diameter 18 5 Concremote cable sensor 0 90 583041000 Concremote Kabelsensor Grey Length 26 3 cm 6 gt Concremote wall sensing element 0 74 583042000 Concremote Messfuhler Wand Concremote cable 1 sensor 0 60m 0 05 583047000 Concremote cable 1 sensor 1 50m 0 08 583046000 Concremote Kabel 1 Messfuhler Concremote cable 3 sensors 8 00m 0 21 583043000 Concremote cable 3 sensors 10 00m 0 25 583044000 Concremote cable 3 sensors special length 0 25 583045000 Concremote Kabel 3 Messfuhler C Concremote calibration box 22 5 583049000 Concremote Kalibrierbox _ Aluminium Yellow M Length 102 cm Width 36 2 cm Height 36 8 cm Concremote battery set 0 16 583048000 Concremote Batterien Set Black Concremote transport box 1 0 583050000 Concremote Transportbox Yellow Length 40 cm Width 40 cm Hei
30. rforming measurements at any desired position in the concrete an auxiliary single use construction may have to be fitted by the user e g reinforced steel 9706 205 01 A Cable positions 999808402 03 2014 doka User Information Concremote Climbing formwork In the area of suspension points Use For protection screens In order for a climbing formwork suspension point to provide sufficient load bearing capacity the concrete must have sufficient strength With Concremote the strength development of the con crete can be displayed easily and in a verifiable man ner For measuring the strength development at a suspen sion point use the cable sensor in conjunction with the sensing element wall k a For measuring core temperatures the cable sensor in conjunction with a measuring cable with 3 measuring points is best suited 9710 306 01 Example climbing cycle A Cable sensor installed in the wall formwork B Sensing element wall At least 2 measuring positions are required for each climbing cycle doka 999808402 03 2014 Slab sensors can be used to determine the concrete strength in the area of suspension points 98063 225 01 A Slab sensor 23 Use Bridge formwork Cross sections through bridges 98084 005 Example single celled bridge cross section Le 98084 004
31. rmation Concremote Symbols used The following symbols are used in this booklet LS Important note Failure to observe this may lead to malfunc tion or damage Failure to observe this may lead to material damage and to injury to health which may range up to the severe or even life threaten ing CAUTION WARNING DANGER gt Instruction This symbol indicates that actions need to be taken by the user Sight check Indicates that you need to do a sight check to make sure that necessary actions have been carried out g EF Tip Points out useful practical tips LIN 1 Reference Refers to other documents and materials 20 999808402 03 2014 doka User Information Concremote Eurocodes at Doka In Europe a uniform series of Standards known as Eurocodes EC was developed for the construction field by the end of 2007 These are intended to provide a uniform basis valid throughout Europe for product specifications tenders and mathematical verification The EC are the world s most highly developed Stand ards in the construction field In the Doka Group the EC are to be used as standard from the end of 2008 They will thus supersede the DIN norms as the Doka standard for product design Eg Design value of effect of actions E effect design Internal forces from action Fa Vea Nea Mea Design value of an action Fa yr Fk F force Fk Characteristic value of
32. ry It is strictly forbidden to weld Doka products in par ticular anchoring tying components suspension components connector components and castings etc or otherwise subject them to heating Welding causes serious change in the microstruc ture of the materials from which these components are made This leads to a dramatic drop in the failure load representing a very great risk to safety The only articles which are allowed to be welded are those for which the Doka literature expressly points out that welding is permitted 999808402 03 2014 Introduction Assembly The equipment system must be inspected by the customer before use to ensure that it is in suitable condition Steps must be taken to rule out the use of any components that are damaged deformed or weakened due to wear corrosion or rot Combining our formwork systems with those of other manufacturers could be dangerous risking damage to both health and property If you intend to combine different systems please contact Doka for advice first The equipment system must be assembled and erected in accordance with the applicable laws Standards and rules by suitably skilled personnel of the customer s having regard to any and all required safety inspections It is not permitted to modify Doka products any such modifications constitute a safety risk Closing the formwork Doka products and systems must be set up so that all loads acting upon them
33. s work properly Any technical problems must be reported to us immediately 14 How to use Concremote slab sensors Prior to installing the sensor for the first time turn the top lid open and connect the battery by means of the white plug Then close the lid again Immediately after pouring levelling trowelling the concrete place the sensor on the concrete surface with its tip pointing downwards The sensor may sink a few centimetres into the concrete depending on the tex ture There is no need to push the sensor down into the concrete The insertion depth is sufficient when the sensor s tip is immersed in the concrete 98084 001 Immersion depth of between 1 and 3 depending on the concrete texture A Concremote slab sensor 999808402 03 2014 doka User Information Concremote How to use Concremote cable sensors General The cable sensor can be fixed in different positions depending on the specific application to the formwork to the projecting reinforcement The cables are embedded in the concrete and are therefore non reusable The sensor number is printed both on the lid and inside the battery compartment The cable can be installed in the structure member from above or below or can be inserted through the form work Section of framed formwork 98084 002 Concremote cable sensor B Cable or sensing element wall C Fixed twice with standard screws Cha
34. se in conjunction with the cable sensor only Clean the measuring point after each use Installation gt Determine the position of the cable sensor and the measuring point and fix the sensor in place gt Drill a hole corresponding to the diameter of the sensing element into the formwork sheeting at the measuring position gt Connect the cable of the sensing element to the cable sensor by turning it sensor starts data trans mission gt Fit the cable and fasten the sensing element to the formwork sheeting using three appropriate screws 16 User Information Concremote 999808402 03 2014 doka User Information Concremote Handling doka 999808402 03 2014 Handling User Information Concremote How to use the Concremote software web portal The Concremote software is a data analysis system and serves as user interface for data input and output The sensors are activated in the Concremote software upon their delivery The login data for the software is sent by e mail The Concremote software does not require installation on your computer 999808402 03 2014 doka User Information Concremote What to do in case of a sensor failure Proper functioning of the sensors is dependent on the battery power flawless network connectivity an
35. support team doka 999808402 03 2014 Handling 19 Use General use Overview The use of Concremote can be split into three stages 1 2 3 Preparation gt Calibration b Implementation Important note Concremote in no way replaces the pre scribed concrete tests If you have any questions please ask your Doka contact person Preparation Plan what the sensors will be used for see the sec tion Areas of use gt Specify the target value in consultation with the structural engineer for more detailed information see the section Reshoring props concrete technol ogy and striking gt Decide on the calibration measurements to be made for the concrete mixtures used and choose a test laboratory see the Concremote calibration box User Information booklet gt Perform a function test see the Concremote soft ware User Manual Calibration Each different concrete mixture needs to be cali brated with the calibration box in order to be able to calculate its strength development based on the temperature data measured by the sensors 2 calibration boxes with 3 concrete cubes each are necessary for calibration Prior to using the sensors for the first time a calibration measurement must be made for each concrete mixture to be measured with Concremote Calibration at a glance The calibration boxes are filled with concrete either on the site or in the concrete mi
36. the lightest ones at the top Rating plate must be in place and clearly leg ible Multi trip transport box partition Different items in the Multi trip transport box can be kept separate with the Multi trip transport box partitions 1 20m or 0 80m Tr755 200 02 Slide bolt for fixing the partition doka 999808402 03 2014 Transporting stacking and storing Possible ways of dividing the box Multi trip transport box partition Lengthways Crossways 1 20m max 3 partitions 0 80m 3 partitions Q Tr755 200 04 Tr755 200 05 Using Doka multi trip transport boxes as storage units Max n of boxes on top of one another Outdoors on the site Indoors Floor gradient up to 3 Floor gradient up to 1 3 6 It is not allowed to stack empty pallets on top of one another Using Doka multi trip transport boxes as transport devices Lifting by crane IS Multi trip packaging items may only be lifted one at a time Use suitable lifting chain e g Doka 4 part chain 3 20 Do not exceed the permitted load bearing capacity Spread angle max 30 9206 202 01 Repositioning by forklift truck or pallet stacking truck The forks can be inserted under either the broadside or the narrowside of the containers 27 Reshoring props concrete technology striking Follow the directions in the Calculation Guide entitled Str
37. this section are to be considered as possible applications of Concremote The advice of the structural engineer should be sought for determining those points that are critical in terms of static requirements The sensors must be positioned in such a way that they measure the most critical maxi mum stress or most unfavourable points with regard to the strength development If necessary protect the sensors from factors such as sunlight radiant heaters etc WARNING gt The Concremote system must be handled and used correctly in order for it to function properly Non compliance with the informa tion provided herein may lead to accidents Floor slabs In floor slabs the use of slab sensors is recommended Cable sensors can be used as an alternative The slab sensors are positioned after levelling trowel ling the floor slab Number of sensors in a floor slab cycle up to 500 m2 at least 2 sensors more than 500 m2 more than 2 sensors as required 22 User Information Concremote Mass concrete structures Cable sensors are recommended for recording the heat development in mass concrete structures The measuring points of the cables can be chosen freely cables are fixed to the reinforcement using cable ties Fix the measuring points blue marks on the cable at an adequate distance from the reinforcement in order to prevent the temperature of the reinforcement from affecting the concrete measurement For pe
38. xing plant depending on the project The filled calibration boxes must be transported to the test laboratory either within 2 hours or after between 18 and 24 hours to ensure that the harden ing process is not affected The six cubes are tested at prescribed intervals 20 User Information Concremote After completing all of the six compressive strength tests the software will automatically generate the cali bration curve for the concrete that has been tested The corresponding data can be accessed via the Concre mote software For more detailed information please refer to the User Information booklet supplied with the calibration box Implementation Performing a measurement involves two steps Positioning the sensor in the structure member Adding the measurement in the software IS Important note In some special cases calibration and installa tion of the sensors can be done at the same time Please ask your Doka contact person if you have any questions regarding this Positioning the sensor in the structure member gt Position the sensor in the structure member and make sure it does not disrupt any further building processes or subsequent work steps e g travelling of tables mounting of plumbing accessories the pro jecting reinforcement etc gt Record a name for the structure member in question e g Floor slab above GF house 1 the installation time and the sensor s serial number Th

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