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常用于建造冷库的材料受温度变化的影响,当温度急剧下降时,面层特别易受破坏,普通硅酸盐水泥或石膏抹面层,应该在冷库降温之前完全硬化。将库内温度降至设计温度的最初阶段,对冷库外墙结构是一个关键阶段,温度降低太快,会严重地损害外墙结构,这是当库房温度急剧下降时,热的外墙材料骤然遇冷而收缩的缘故。为防止和减少这种冷缩现象对冷库外墙的影响,库房温度必须逐渐地降至
Materials commonly used in the construction of cold stores are subject to changes in temperature. When the temperature drops sharply, the facing is particularly susceptible to damage. Ordinary portland cement or plaster finishes should be fully hardened before the freezer is cooled down. The initial stage of the library temperature dropped to the design temperature of the outer wall structure is a critical stage, the temperature drops too fast, will seriously damage the outer wall structure, which is when the warehouse temperature dropped sharply, the hot outer wall material suddenly Case of contraction and cold. In order to prevent and reduce the effect of such shrinkage on the external wall of the freezer, the temperature of the warehouse must be gradually reduced to