Title: Calcium aluminate cement compositions and mixes and method for preparing them

Abstract: Compositions and mixes of calcium aluminate cement with or without aggregates and with controlled amounts of calcium formate and preparation of the same, which significantly accelerate the setting times and early compressive strength gain of the product formed after addition of water for hydraulic setting of the cement. By careful control of composition and particularly of amount of calcium formate included, new calcium aluminate cement compositions and mixes are provided, useful for patching, topping and other uses where fast setting, and high early strength characteristics are required.

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Inventors: Ray, James Allen (Mantua, OH, US)
Lazio, Thomas Joseph (Solon, OH, US)

Application Number: 669734
Filing Date: 1976-03-23
Publication_date: 1977-07-05
Assignee: Martin Marietta Corporation (Bethesda, MD)
Primary Class(es): 106/696
Other Classes:
US Patent Ref:

3210207	Oct, 1965	Dodson et al.	106/90.
3619221	Nov, 1971	Kossivas	106/315.
3801338	Apr, 1974	Whitaker	106/90.
3826665	Jul, 1974	Hovasse et al.	106/104.

Other Refs:
Primary Examiner: Poer, J.
Assistant Examiner:
Attorney: