false set

[¦fȯls ′set] (materials) Rapid hardening of freshly mixed cement paste, mortar, or concrete with minimum evolution of heat; plasticity can be restored by mixing without addition of water. (mining engineering) A light, temporary lagging set of timber supporting the side and roof lagging until the drive is advanced sufficiently to allow the heavy permanent set to be put, at which time the false set is taken out and used again in advance of the next permanent set. Also known as fake set.

false set, early stiffening, hesitation set, plaster set, premature stiffening, rubber set

The rapid development of rigidity in a freshly mixed portland cement paste, mortar, or concrete without the generation of much heat; this rigidity can be dispelled and plasticity regained by further mixing without addition of water.

单词	false set
释义	false set false set [¦fȯls ′set] (materials) Rapid hardening of freshly mixed cement paste, mortar, or concrete with minimum evolution of heat; plasticity can be restored by mixing without addition of water. (mining engineering) A light, temporary lagging set of timber supporting the side and roof lagging until the drive is advanced sufficiently to allow the heavy permanent set to be put, at which time the false set is taken out and used again in advance of the next permanent set. Also known as fake set. false set, early stiffening, hesitation set, plaster set, premature stiffening, rubber set The rapid development of rigidity in a freshly mixed portland cement paste, mortar, or concrete without the generation of much heat; this rigidity can be dispelled and plasticity regained by further mixing without addition of water.
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