MANUFACTURING METHOD OF CONCRETE COMPOSITION AND CONCRETE MOLDING

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method concrete composition capable of preparing the concrete composition of uniform slurry in a short time even if applied to the concrete composition of a low water/bonding agent ratio, and to provide a concrete molding of high compressive strength obtained thereby.

SOLUTION: The manufacturing method of the concrete composition with a water/bonding agent ratio of 0.2 or lower has: a first kneading step to knead 50-90 pts.mass of a bonding agent based on 100 pts.mass of the total amount of the bonding agent including cement in the concrete composition with water to prepare the slurry; and a second kneading step to knead after adding the residual quantity of the bonding agent to the slurry.

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