Class F. fly ash containing settable composition for general pur

Details Class F. fly ash containing settable composition for general pur Class F. fly ash containing settable composition for general pur

1992-10-13

1993-11-30

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106707, 106713, 106737, 106738, 106751, 106763, 106DIG1, 264DIG49, C04B 1400, C04B 1800, C04B 210

Patent

active

052661113

ABSTRACT:
In general purpose concrete compositions, from about 10% but less than about 25% by wt of the usual amount of portland cement for such compositions is replaced with Class F fly ash and cement kiln dust, both abundant and inexpensive waste products, in the weight ratio of such fly ash to cement kiln dust of about 3:1-1:1 with a minimum of about 5% of the replaced portland cement being cement kiln dust. General purpose concrete prepared from these mix compositions exhibit early strength characteristics, especially from day 1 to day 3, generally equal to or better than those exhibited by comparable all portland cement mix compositions.

REFERENCES:
patent: 2987408 (1961-06-01), Minnick
patent: 4210457 (1980-07-01), Dodson et al.
patent: 4268316 (1981-05-01), Wills, Jr.
patent: 4341562 (1982-07-01), Ahlbeck
patent: 4407677 (1983-10-01), Wills, Jr.
patent: 4842649 (1989-06-01), Heitzmann et al.
patent: 4992102 (1991-02-01), Barbour
Kosmatka et al. "Design & Control of Concrete Mixes", 13th Edition, 1988, pp. 30-46, 64 and 71.
Proceedings: Eighth International Ash Utilization Symposium, vols. I and II, Oct. 1987, papers 17 and 59.

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