CA2601900A1 - Low density cements for use in cementing 2022-08-24
A cement mix which is suitable for cementing in subterranean formations to provide zonal isolation or for blocking or plugging an abandoned pipeline or back filling a mine shaft, tunnel or excavation contains Portland cement or a mixture of two components selected from Portland cement, fly ash, slag, silica fume, gypsum, limestone and bentonite; and
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