粉煤灰改良铁尾矿膏体充填材料试验研究
海龙,程同俊,徐博,赵鑫

Experimental Study on the Paste Filling Material of Iron Tailings Improved by Fly Ash
Long HAI,Tongjun CHENG,Bo XU,Xin ZHAO
图7 养护龄期为3 d和28 d试块的SEM图像
Fig.7 SEM images of specimens with curing age of 3 d and 28 d