Method of producing concrete

Details Method of producing concrete Method of producing concrete

1985-02-12

1989-01-03

Dixon, Jr., William R.

Agitating

Mortar mixer type

Methods

366 14, 106314, B28C 704

Patent

active

047952636

ABSTRACT:
A fine aggregate is stored in a high storage silo and its surface water content is so controlled that its variation may be kept within .+-.1% by weight. The fine aggregate, cement and primary water containing an air entraining agent are mixed in an upper mixer (primary mixing) to prepare mortar. The mortar, a coarse aggregate and secondary water containing a water reducing agent are mixed in a lower mixer (secondary mixing) to produce mixed concrete.

REFERENCES:
patent: 4249948 (1981-02-01), Okada et al.
patent: 4403863 (1983-09-01), Fukushima et al.
Orchard, "Concrete Technology" vol. I, Properties of Materials, 1973, pp. 76-77, Essex, England.

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