Title: Early strength cements

Abstract: An early strength hydraulic cement comprising 7 to 90 per cent C.sub.12 A.sub.7 formed in an underlimed clinker burned to a low free lime, the underlimed condition being at least counterbalanced in the cement by a substance effective to raise the basicity.

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Inventors: Murray, Ransom James (Gravesend, EN)
Brown, Arthur William (London, EN)

Application Number: 636457
Filing Date: 1975-12-01
Publication_date: 1977-04-26
Assignee: The Associated Portland Cement Manufacturers Limited (London, EN)
Primary Class(es): 106/695
Other Classes:
US Patent Ref:

2099176	Nov, 1937	Scripture	106/104.
3645750	Feb, 1972	Sadran	106/104.
3861929	Jan, 1975	Deets et al.	106/104.

Other Refs:
Primary Examiner: Poer, J.
Assistant Examiner:
Attorney: Baldwin, Wight & Brown