READY-MIXED CONCRETE AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To produce a good-workability ready-mixed concrete by using a crushed concrete product as an aggregate therefor.

SOLUTION: The particle size distribution of a definite amount of the crushed concrete product obtained by crushing concrete lumps is measured. Sand in such an amount as to supplement a fine aggregate portion in which the crushed concrete product is deficient is added thereto. The resultant mixture is used as an aggregate and is mixed with cement and water to stably obtain the ready- mixed concrete having good workability and having no risk of developing e.g. cracks after being set.

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