Managing time-related costs calls for a short construction time and strict planning. Working with concrete has certain very specific critical moments: removal of formwork, reshoring, post-tensioning, and termination of cold weather protection. Each of these activities is only possible once a certain concrete strength has been reached, usually determined using in-situ cured cubes or cylinders.
The results obtained with these cubes or cylinders are often very different than the strength of the construction itself, since the curing conditions are not identical. By employing in-situ tests, this problem is avoided. Non-destructive in-situ testing based on maturity is ideal in situations up to approximately 70% of average final strength.
Maturity is calculated using the temperature history of the concrete and the temperature sensitivity of the cement. The MC-21 consists of a four-sensor, electronic scanner for temperature measurement. A built-in processing unit continually calculates maturity, taking into account the behavior of the cement at different temperatures. The data and results can be read on the display of the maturity computer or they can be transferred to a PC or Laptop by using the included memory module. With the MCR-21 type the data and results also can be transferred wireless via the built-in GSM module. The instrument is suitable for use on the building site. It is easy to operate, reliable and runs independently of the mains. Installation and use are extremely simple. The MC(R)-21 can be used worldwide.
Process control for accelerated curing through heating. The model MC(R)-21-M is the basic instrument for monitoring maturity development during construction. If the concrete curing is accellerated by means of heating, the models MC(R)-21-S and 21-T offer the possibility of automatically regulating the heat to be applied. This is done in such a way that the required maturity, and hence the required strength, can be reached at a predetermined time and with the minimum possible energy consumption, whilst at the same time taking into consideration the requirements and demands of the technical process. A single instrument can independently control up to four heating equipments.
Middelblok 134
2831 BP Gouderak
Netherlands
+31 (0) 182 30 31 60
info@abmbv.nl