Strength development of concretes with ordinary portland cement partially replaced by slag or fly ash cured at different temperatures

Abstract

This paper presents the results of an investigation on the effect of Portland cement replaced by fly ash or granulated blast-furnace slag on the concrete strength at different curing temperatures. Also, it presents the coefficients in the relationship of strength-time-curing temperature for the tested concretes as suggested by Carino and Brooks and Al-Kaisi. Compressive strength results are analysed according to the hyperbolic strength-age function by introducing a power index n. The regression analysis is done considering different n and to (final setting time) values.