Effect of Different Mineral Admixtures on Sulfate Attack to Mortars
Corrosion resistance coefficient of mortars incorporating different mineral admixtures were tested according to GB2420, and the expansion ratio of mortar bar immersed in 5% Na2SO4 solution was measured according to ASTM C1012. It is shown that all the mineral admixtures, including ground granulated blast furnace slag (SL) fly ash (FA), natural zeolite (NZ) and metakaolin (MK) were effective in decreasing the 15-week expansion and increasing the corrosion resistance coefficient of the specimens immersed in Na2SO4 solution as well.
Hao-Wen YE and Gai-Fei PENG
Q. L. Niu and N. Q. Feng, "Effect of Different Mineral Admixtures on Sulfate Attack to Mortars", Key Engineering Materials, Vols. 405-406, pp. 278-282, 2009