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  1. The compound of Portland cement which contributes to the strength after two to three years is

    2. A.

     Tri-calcium silicate
    B.

     Di-calcium silicate
    C.

     Tri-calcium aluminate
    D.

     Tetra-calcium alumino ferrite

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    Workspace

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    Answer : Option B

    Explanation :

    Explanation Not Provided

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