Abstract

electron microscopy (SEM) and EDS, we know that hydration products become very complicated, depending on the WMSI temperatures and ased on changes in the products. Experimental results, however, clearly Low-temperature wet-mixed steam injection (WMSI) has temperatures. This leads to a structure of paste or concrete, to crete Rcuring or steaming curing, a 95 % hydration rate can be achieved in a few hours [1,2]. However, this concrete easily cracks due to the temperature difference between the inside and the outside. The concrete shows high compressive strength in early stages and weaker strength in late stages than those cured at normal temperatures [3]. Recently, the effects of temperature and retention time on steaming curing process and the reaction mechanism of type I cement with single Portland materials, e.g., slag, fly ash and silica fume, having high early compressive strength characteristics. The final compressive strength and durability are worse than those without Portland cement substitute materials [12,13].