Method of manufacturing concrete for placement in air not requir

Details Method of manufacturing concrete for placement in air not requir Method of manufacturing concrete for placement in air not requir

1992-09-21

1994-05-31

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106724, 106728, 106737, C04B 702

Patent

active

053165721

ABSTRACT:
Concrete for placement in air featured by the quantity of mixing water of not more than 175 kg/m.sup.3, the content of hydraulic component materials of 400-700 kg/m.sup.3, nonuse of anti-foaming agent, the addition of a water-soluble polymer substance in an amount such as will give a viscosity in a range of 5 to 2,000 centipoises when dissolved in 1,000 g of water of 20.degree. C., and further, the addition of a high-range air-entraining, water-reducing agent in 0.1 to 2% by dry weight of the hydraulic component materials. This method of manufacturing concrete for placement in air has the effects of extremely little segregation, high deformability, and no necessity for consolidation.

REFERENCES:
patent: 4046583 (1977-09-01), Collepardi
patent: 4052220 (1977-10-01), Turpin, Jr.
patent: 4188231 (1980-02-01), Valore
patent: 4205993 (1980-06-01), Rosenberg et al.
patent: 4746364 (1988-05-01), Kawai et al.
patent: 5010124 (1991-04-01), Olsson et al.
Design and Control of Concrete Mixtures, Portland Cement Assoc., pp. 2, 3, 47, 48, 52-56, 64-71, 82, 104, 105. Thirteenth Edition (1988).
Handbook of Structural Concrete Kong et al. (1983) pp. 8-31 (Chapter 9).
Concrete Admixtures Handbook Ramachandran (1984) pp. 116-118, 124, 125, 211, 214, 232-235, 260, 269-273, 278-285, 337-345.
Standard Specifications for Concrete, (and English translation thereof) noting pp. 53, 67, 72-73, 74 (1989).
Concrete Library, No. 51, "Guide to Placement of Superplasticized Concrete," (and English translation thereof) noting pp. 3, 32-33 (1987).

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