Portland-type cements

Details Portland-type cements Portland-type cements

1980-05-07

1982-03-16

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106100, C04B 702

Patent

active

043199275

ABSTRACT:
The present invention relates to a hydraulic cement composition having a boron- and halogen-containing component and unusually high full term as well as early strengths and acceptable setting time characteristics, which cement is characterized by the presence, as hydraulically settable calcium silicates, of about 20-70 percent of alpha-prime dicalcium silicate (.alpha.'--C.sub.2 S) and about 10-50 percent of tricalcium silicate C.sub.3 S based upon the weight of the composition.

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Gilioli et al., Studies on Clinker Silicates Bearing CaF.sub.2 and CaSO.sub.4, Cement & Concrete Research, vol. 9, pp. 295-302, 1979.
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Use of Fluorspar as a Fluxing Agent in the Manufacture of Portland Cement, Limited Bibliography No. 198, Research Library, Portland Cement Association, 1978.

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