Strength enhancing additive for certain portland cements

Details Strength enhancing additive for certain portland cements Strength enhancing additive for certain portland cements

1989-10-06

1991-02-05

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106724, C04B 738

Patent

active

049901907

ABSTRACT:
This invention relates to a method of producing enhanced strength portland cements. Under the process of this invention, certain portland cements, in particular those containing at least 4% C.sub.4 AF and up to 0.2% of a strength enhancing additive comprising triisopropanolamine, exhibit a marked increase in 7 and 28 day compressive strength. The triisopropanolamine strength enhancing additive may be admixed with cement powder or may be interground as a grinding aid with cement clinkder during finish milling.

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Zement-Kalk-Gips "Effect of Amino Components on the Setting and Hardening of Portland Cements", Von L. Muller (1974).

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