Experimental study of temperature and pressure combined impact on heavy reinforced cement samples

Currently, in nuclear reactors construction prestressed reinforced concrete is used. Despite the fact that prestressed reinforced concrete is characterized by high crack resistance (one of the main criteria in high-pressure buildings design), its high cost and enormous labor intensity are significant disadvantages. At G.N. Shorshnev suggestion, fine-grained concrete with high-strength Bp-1 wire reinforcement of small diameters of 3–5 mm with a reinforcement coefficient 20% or more (heavy reinforced cement) was developed as main load-bearing material for high-pressure housings. Increased concrete stretchability and the heavy reinforced cement high crack resistance make it a good alternative to the prestressed reinforced concrete as the main load-bearing material in the high-pressure housings. However, to date, there are no experimental studies of heavy reinforced cement on the temperature and pressure combined impact. The article is addressed to the o heavy reinforced cement properties study on twelve prismatic samples under even heating and force impact. The experimental studies were carried out in 2 stages: heating of the samples lower surface and the temperature and pressure combined impact. The study results confirmed the heavy reinforced cement high crack resistance, the concrete increased stretchability, as well as the necessary data for further numerical studies were obtained.