Manufacture of works at negative temperature

With fall of temperature process tverdenija a cement mortal is slowed down, and at 0°Р. Practically stops. That the limy solution hardened, the damp environment and positive temperature are necessary. At fast freezing svezhevy-lozhennoj layings in seams the mix of knitting substance and sand, stsementirovannaja is formed by ice. The solution so quickly loses plasticity that horizontal seams remain insufficiently condensed; at thawing they embrace a gravity of an overlying laying that can cause considerable and non-uniform to a deposit and create threat of durability and stability of a laying.

At early freezing of a laying final durability of cement, cement-limy and cement-clay solutions which they get after thawing and 28-day tverdenija at positive temperature, considerably decreases and in certain cases does not exceed 50% of branded durability.

These circumstances cause necessity of observance of a certain mode of a winter laying which would provide durability of a solution and a laying as a whole.

Depending on a kind of a laying and erected designs stone works carry out in the next ways in the winter: freezing, with use protivomoroznyh additives and with electrowarming up application.

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