Method of making concrete from fly ash

Details Method of making concrete from fly ash Method of making concrete from fly ash

1979-01-15

1980-12-23

Peters, G. O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106103, 106 97, 106DIG1, C04B 714

Patent

active

042409527

ABSTRACT:
In a method of making concrete of the Portland Cement type wherein a quantity of cementitious material, such as Portland Cement, is mixed with a quantity of aggregate, generally sand and rock in varying proportions and water; and, wherein, the resulting mixture is stirred or mixed for an appropriate length of time consistent with acceptable practices in the concrete industry after which the mix is poured and allowed to set, the improvement which is characterized by the employment of fly ash as the major ingredient in the cementitious material. The improvement also includes the adding of gypsum to the initial mix in an amount equal to about 2% by weight of the fly ash and, thereafter, adding in and mixing a quantity of calcium chloride equal to about 3% by weight of the fly ash. As an added feature, a quantity of organic material, such as a latex emulsion, can be added to the initial mix to improve the flow characteristics of the concrete mix and to improve the physical characteristics of the ultimate concrete.

REFERENCES:
patent: 2752261 (1956-06-01), Dournaud
patent: 3565548 (1971-02-01), Mori et al.
patent: 3895953 (1975-07-01), Mehta

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