EXPERIMENTAL RESEARCHES OF PROTECTIVE WALLS PROTECTION OF FORTIFICATIONS FOR DYNAMIC INFLUENCES

Abstract

Concrete protective fortifications are widely distributed in the general defense system of many states. First and foremost, thanks to the high strength and durability of such structures. In such structures a certain specificity of concrete work was noted in conditions of high-speed impact. The use of reinforced concrete in modern fortifications, as a protective coating is virtually absent, or has very limited protection. Basically, these are not large checkpoints, checkpoints, which give protection similar to a light against a fragmentation coating. The thickness of concrete in such buildings is not more than 300 mm.

In the laboratories of the Department of Industrial, Civil Engineering and Engineering, and the Building Products Technology and Materials Science, two plates (P1 and P2) of high-strength, fast-hardening concrete were designed and manufactured. Plates had a size of 1000 × 1000 mm and a thickness of 300 and 400 mm.

The results of the test with dynamic action with a robust thickness of up to 30 mm of experimental protective steel-reinforced concrete slabs confirmed the possibility and feasibility of application for their manufacture of high-strength fast-hardening concretes. The use of such concrete will reduce the thickness of the plates in 2 to 3 times compared with the concrete of conventional classes. The comparison of plates, which were subjected to a defeat of a robust thickness of 12.7 mm, was calculated, with calculations in PC FORT. According to the calculation of the plate its durability is ensured as in real conditions.