采用TG-HDSC方法研究砂浆沉淀层（图12(d)）和净浆沉淀层（图1

The white products of the mortar precipitation layer (Fig. 12(d)) and the clean slurry precipitation layer (Fig. 12(a)) were investigated by TG-HDSC method. The white precipitates on the surface are dominated by M−S−H, and the difference in the composition of the two products determines the different blocking effects on erosive ions.

Tg-hdsc method is used to study the white products of mortar sedimentation layer (Fig. 12 (d)) and net slurry sedimentation layer (Fig. 12 (a)). The results show that the white sediment on the surface of net slurry is mainly magnesium hydroxide, while the white sediment on the surface of mortar is mainly m − s − h. The difference of the composition of the two products determines the different blocking effect on erosion ions.

TG-HDSC method was used to study the white products of mortar precipitation layer (fig. 12(d)) and clear slurry precipitation layer (fig. 12(a)). The results showed that the white precipitate on the surface of clear slurry was mainly magnesium hydroxide, while the white precipitate on the surface of mortar was mainly M−S−H. The difference of the composition of the two products determined the different blocking effect on the corrosive ions.