Expanding additive for cement composition
作者： Ping-Sun Cheung
DOI:
关键词: Materials science 、 Composite material 、 Curing (chemistry) 、 Calcination 、 Casing 、 Magnesium 、 Metal 、 Metallurgy 、 Cement
摘要: Deadburned magnesium oxides (calcined at a temperature of above about 4000° F.) can be advantageously utilized as an expanding additive in cements to seal metallic casing into the bore hole well. The deadburned oxide additives are particularly effective when used having curing 120-200° C. and temperatures greater than 150°
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