Abstract
In the present paper, in order to apply color measurement as a method for the quality control of younger concrete cast during a few months, the influence of various factors on the surface color of mortar under various curing conditions, and the possibility of estimation of mechanical characteristics such as dynamic elastic modulus, and flexural and compressive strength by measuring surface color and water content of mortar are investigated. It is clarified from the experiment that there is a comparative correlation between color, water content and mechanical characteristics, and it is possible to predict the dynamic elastic modulus and the compressive strength of mortar by measurement of its surface color and water content during a few months from placing concrete.