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本文介绍了混凝土受原材料组成和生产工艺及周边环境的影响。从单位用水量、使用原材料、配合比、外加剂、养护条件的影响、温度、碳化、混凝土的早期体积变化等不同方面说明了均能引起混凝土体积变化。对干缩裂缝、沉降裂缝、温度裂缝、塑性收缩裂缝、应力裂缝、施工因素裂缝等多种混凝土裂缝的形成成因和过程及应对措施加以阐述。
This article describes the concrete by the raw material composition and production processes and the surrounding environment. From the unit water consumption, the use of raw materials, mix, additives, curing conditions, temperature, carbonation, early changes in the volume of concrete and other different aspects of the volume of concrete can cause changes. The forming causes and process of various concrete cracks such as shrinkage crack, settlement crack, temperature crack, plastic shrinkage crack, stress crack and construction factor crack are expounded.