Process for preparing frost resistant concrete

Details Process for preparing frost resistant concrete Process for preparing frost resistant concrete

1976-05-06

1977-11-08

Poer, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106 97, 260 4213, C04B 735

Patent

active

040575268

ABSTRACT:
A process is provided for making frost resistant cement products having improved 28 day compressive strengths wherein a gas is included in the product by substantially uniformly dispersing hollow gas filled synthetic polymeric spheres in the cement mixture prior to setting thereof. The invention also provides a frost resistant cement product having from about 0.01 to about 0.1% by weight based on the weight of cement of synthetic polymer spheres filled with air and having a diameter of from about 10 to about 100 .mu.m substantially uniformly dispersed therein.

REFERENCES:
patent: 2819171 (1958-01-01), Scripture et al.
patent: 3021291 (1962-02-01), Thiessen
patent: 3272765 (1966-09-01), Sefton
patent: 3351478 (1967-11-01), Dodson et al.
patent: 3764357 (1973-10-01), Bowles et al.
patent: 3869295 (1975-03-01), Bowles et al.
patent: 3883359 (1975-05-01), Harvey

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