The Analysis of the Strength Characteristics of Rubber Concrete as Compared with Ordinary Cement Concrete

Increasing the strength of cement concrete could significantly improve the technical and economic performance of structures. However, an increase in strength also entails an increase in the brittleness of the material, as a result of which there is a faster (almost instantaneous) destruction of concrete, and in the case of its destruction in a compressed zone, reinforced concrete elements when they reach the limit state. Thus, the actual problem of modern materials science is to increase the plastic-deformation properties of concrete and resistance to cracking. Polymer concretes obtained on the basis of liquid rubber are usually called Rubcons. Rubber concrete is a more plastic material, the ratio of its compressive strength to tensile strength is 8, while this indicator for ordinary concrete is equal to 18–19, while the modulus of elasticity, of course, is somewhat inferior to the modulus of elasticity of ordinary cement concrete, and is within the level of 25–26 GPa. At the same time, due to the high tensile strength of Rubcon, in the case of the manufacture of reinforced structures, better protection of reinforcing bars from an aggressive environment is provided than in traditional reinforced concrete structures.