10 Pages

Nondestructive quality evaluation of surface concrete with various curing conditions

ByI. Kurashige & M. Hironaga

ABSTRACT: With a view to a system that inspects the durability of concrete structure based on their practical quality, we conducted experiments on evaluation of the applicability of two types of nondestructive test: rebound hammer and air permeability tests. The strength characteristics and carbonation resistance of concrete specimens with various curing conditions: demold age and subsequent exposure environment were determined to compare to their nondestructive-measured values. The results reveal strong correlation between carbonation resistance and air permeability coefficient. In addition, they indicate that rebound hammer test may be available to inspect the quality of conducted curing for concrete structure.