Which component of concrete contains silica?
Concrete aggregate containing silica stone and sand stone; chemical analysis, most of the stones are limestone, calcium oxide composition in 50%, Magnesium Oxide 3%, 40% silica; chemical analysis of silica sand, accounted for more than 90%;
Yes, the alkali in cement refers to sodium oxide and potassium oxide, only the question of how much, no no;
I say the figures are only about, specific can do a chemical analysis, you want the data can be very simple to do an analysis, routine 8 element analysis, general experimental test structure can do;
