PURPOSE: To provide a compound for mortar previously fed, capable of reducing an amount used (namely, capable of feeding concrete over longer distance in same amount used). ;CONSTITUTION: This composition for mortar previously fed is obtained by mixing cement with fine aggregate and particle diameter of the fine aggregate is ≤2.5mm and a weight ratio S/C of a blend amount S of the fine aggregate to a blend amount C of the cement is 1-2.;COPYRIGHT: (C)1995,JPO
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