Process for stabilizing cement stone formed with aluminous binde

Details Process for stabilizing cement stone formed with aluminous binde Process for stabilizing cement stone formed with aluminous binde

1977-01-06

1978-06-13

Poer, J.

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106314, C04B 732

Patent

active

040946924

ABSTRACT:
Process for stabilizing cement stone, formed with binders rich in aluminates by setting with water, against high elevated temperatures and high humidity which comprises adding calcium sulfite to the aluminous binder material prior to setting. In another embodiment of the invention the addition of calcium borate along with the calcium sulfite provided even greater stability both initially and over a period of time. Calcium sulfite formed as a by-product of the waste gas purification of furnaces is the main source of supply for purposes of this invention.

REFERENCES:
patent: 3663252 (1972-05-01), Stiglitz et al.
patent: 3663286 (1972-05-01), De Barrau

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