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通过对不同尺寸、不同约束条件的混凝土多孔砖砌体在标准养护和自然养护环境中干燥收缩性能的研究,分析了环境温度、相对湿度、龄期及高度对混凝土多孔砖砌体收缩变形的影响,并提出了考虑这些因素的无约束混凝土多孔砖砌体自由干燥收缩变形估算公式。研究结果可为混凝土多孔砖墙体控制干燥收缩裂缝提供依据。
The effects of ambient temperature, relative humidity, age and height on the shrinkage of concrete perforated brick masonry were studied by studying the shrinkage properties of concrete perforated brick masonry with different sizes and constraints under standard curing and natural curing conditions The formulas of free-drying shrinkage deformation of unconstrained concrete perforated brick masonry considering these factors are proposed. The results provide the basis for the control of shrinkage cracks in concrete perforated brick wall.