TECHNOLOGY TESTING STRENGTH OF CONCRETE Russian patent published in 2002 - IPC

FIELD: tests of strength of concrete. SUBSTANCE: technology includes local destruction of concrete structure and determination of strength of concrete by graduation dependence of destruction parameters. Novelty of technology lies in local destruction of concrete structure, in recording of parameters of acoustic emission N through equal time intervals Δt_i, in determination of volume V of volume of crushed material and in computation of destruction rate of concrete by formula S=V/ΣΔt_i, Strength of concrete is found by graduation dependence between strength of concrete and parameters N and S. EFFECT: reduced labor input, increased accuracy of determination of strength of concrete. 1 tbl