Question

what calcium compound are consistutet of cement?

Answer 1

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What calcium compound are consistutet of cement?

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$Portland cement is made up of four main compounds: tricalcium silicate$ $(3CaO · SiO_2), dicalcium silicate (2CaO · SiO_2), tricalcium$ $aluminate (3CaO · Al_2O_3), and a tetra-calcium aluminoferrite$ $(4CaO · Al_2O_3Fe_2O_3).$

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Answer 2

Portland cement is made up of four main compounds: tricalcium silicate (3CaO · SiO2), dicalcium silicate (2CaO · SiO2), tricalcium aluminate (3CaO · Al2O3), and a tetra-calcium aluminoferrite (4CaO · Al2O3Fe2O3). In an abbreviated notation differing from the normal atomic symbols, these compounds are designated as C3S, C2S, C3A, and C4AF, where C stands for calcium oxide (lime), S for silica, A for alumina, and F for iron oxide. Small amounts of uncombined lime and magnesia also are present, along with alkalies and minor amounts of other elements.