Expanding additive for cement composition

Details Expanding additive for cement composition Expanding additive for cement composition

1996-12-10

1999-08-24

Marcantoni, Paul

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106820, 166293, C04B 900

Patent

active

059420316

ABSTRACT:
Deadburned magnesium oxides (calcined at a temperature of above about 4000.degree. F.) can be advantageously utilized as an expanding additive in cements utilized to seal a metallic casing into the bore hole of a well. The deadburned magnesium oxide additives are particularly effective when used in cements having a curing temperature of about 120-200.degree. C. and particularly at temperatures greater than about 150.degree. C.

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patent: 5547024 (1996-08-01), Di Lullo Arias

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