Too Cold for Installation

摘要

The effects of cold on buildings are widely varied. One of the more extreme examples of damage is cracking and spalling of masonry when water trapped within the pores of masonry units expands with cyclic freezing and thawing. Distress can also occur when construction materials are employed at or below freezing temperatures or the weather becomes wintry during installation or curing. For example, if mortar freezes during curing, it will crack and fail prematurely in service. Additionally, the serviceability of sealants and coatings may be affected by cold temperatures during installation or curing-application of these materials in chilly weather can also be affected by substrate conditions such as the formation of condensation or ice on the bond surface.