通过对不同尺寸不同约束条件的蒸压粉煤灰砖墙体在标准养护和自然养护环境中连续进行了228天干燥收缩性能试验研究,分析了环境温度、相对湿度、龄期及墙体高度对蒸压粉煤灰砖墙体收缩变形的影响,并提出了考虑这些因素的蒸压粉煤灰砖墙体干燥收缩变形估算公式。研究结果可为蒸压粉煤灰砖墙体控制干燥收缩裂缝提供依据。 The autoclaved fly ash brick wall with different sizes and different constraints was continuously subjected to 228 days of drying shrinkage in a standard curing and natural conservation environment. The effects of ambient temperature, relative humidity, age and wall height on The influence of the shrinkage deformation of the autoclaved fly ash brick wall, and the formula of estimating the dry shrinkage deformation of the autoclaved fly ash brick wall considering these factors are put forward. The results provide the basis for the control of dry shrinkage cracks in autoclaved fly ash brick wall.