SOME FEATURES OF THE EFFECT OF BASALT FIBER (Ø13MKM) ON THE STRENGTH AND ENERGY PARAMETERS OF THE DESTRUCTION OF THE CEMENT STONE
As it is known, one of the methods of building material strength characteristics increase based on cement astringent is implantation to it’s structure of different reinforcing fillers, including basalt fiber. (fiber diameter 10-20 mkm). The article presents the results of laboratory research on bending and pressure breaking point determination, destruction energy intensity and impact elasticity of cement stone depending on basalt fiber contents (diameter 13 mkm, length 12 mm.). It is determined during research carried out, that cement stone reinforcement by basalt fiber is effective method of strength increase under bending loading, maximum strength growth (up to 50-57%) reaches under fiber content in an amount from 2 to 3% of astringent mass; during pressure testing there were no significant breaking point change discovered. Cement stone destruction energy intensity at fiber content from 1 to 3% increases up to 23,1%, and impact elasticity up to 22,1%. Obtained regularities may be used to recommendation forming of composite materials development assigned to concrete structure erection with high performance attributes, for example basalt-fibro-reinforced gunite more stable to loading from mountain bumps and blasting operations.