Low-Temperature Properties of Concrete Using Low-Heat Blended Cement

Abstract

Low-heat Portland cement was investigated to develop low-heat high strength concrete intended for use in low-temperature environments. Pulverized blastfurnace slag, limestone powder and silica fume were examined to improve strength at early age at low temperature. The low-temperature properties of the low-heat Portland cement were improved by using highly pulverized blastfurnace slag and increasing the calcium sulfate content. These results are due to the formation of C-S-H and ettringite at low temperature.