Jee MainS Block ElementsJEE Main 2021 (Online) 31st August Morning ShiftMCQ+4 / -12021ENHIThe major component/ingredient of Portland Cement is :Atricalcium aluminateBtricalcium silicateCdicalcium aluminateDdicalcium silicateCheck AnswerClear SelectionReveal AnswerShow Explanation