Roadways and transportation infrastructure are the lifeblood of any thriving and growing urban development. The consistency and accuracy of paving layer thickness is a challenge for both the pavers, the suppliers and the owners. It is important that the thickness of each layer on the paved road be maintained. Too much or too little material affects either the cost of the project (too much material) or the adherence to spec (too little material placed).
qcVerify provides a non disruptive solution that allows paving crews to monitor each layer. The resulting scan shows layers placed and calculates the amount of material used. This allows for increased efficiency, accuracy and auditability.
The placement of mass concrete is much different than that of typical slabs. Mass concrete, defined by the American Concrete Institute as “any volume of concrete with dimensions large enough to require that measures be taken to cope with generation of heat from hydration of the cement and attendant volume change to minimize cracking”, is mainly used for assets with long service lives, and must therefore be designed for low permeability. This requires thick pours (generally a minimum dimension of 36 inches), consisting of a mixture with high cementitious material contents.
This results in a concrete structure that produces a lot of heat during the curing phase, but does not diffuse the energy easily. In a mass concrete placement, the heat escapes more slowly than it is generated. If the placement becomes too hot, cracking and other types of damage can occur.
To avoid such issues, contractors must control both the maximum temperature and temperature difference between the interior and the exterior of the concrete.
qcVerify delivers real-time temperature monitoring throughout a mass concrete pour. The system connects wirelessly to sensors within the slab, while thermal cameras monitor the exterior. The result is a comprehensive reporting system that allows crews to monitor their pour in real time and intervene with cooling measures if necessary before damage occurs.