INVESTIGATION OF DYNAMICS AND LEVEL OF CONCRETE STRENGTH DEVELOPMENT LAID IN STEEL PERMANENT FORMWORK

The article shows the results of experimental tests of speed of the concrete strength de- velopment, laid in a system of the steel permanent formwork. There has been described the structure of the steel permanent formwork. There has been provided a technology of tests exe- cution and there have been described experimental samples and testing equipment. Based on the tests` results, there has been provided a comparison between hardening speed of concrete laid in the traditional formwork and concrete laid in the steel permanent formwork. The results of executed tests show that concrete laid in the system of the steel permanent formwork hard- ens faster than concrete laid in the traditional formwork. There have been described the rea- sons of detected defect of concrete hardening speed-up, there have been described some physical characteristics of concrete laid in the system of the steel permanent formwork.

steel permanent formwork, speed of concrete hardening, concrete, tradi- tional formwork, concrete strength, tests