A micromechanical model is presented to simulate the physical configuration of self-healing process of concrete due to the mechanism of crystallization and precipitation based on the double inclusion method, by which the homogenized mechanical properties are estimated. The effect of the number of cracks healed and the mechanical nature of healing components are investigated under varying conditions of healing. The results show that 0.2 mm and 0.4 mm are critical crack widths for abruptly change of the recovered modulus for the same age of healing. The moisture supply has a greater effect than temperature on the healing, particularly at higher temperatures. For narrow cracks (e < 0.1), the recovered mechanical properties solely depend on whether the crack faces are attached by healing, irrespective of the moduli of the healing components. However, the mechanical nature of the healing components has a more significant effect on healing of wider cracks. Finally, the experimental results validate the theoretical calculations.

基于双夹杂法，提出了一种微观力学模型来模拟混凝土由于结晶和沉淀机理而产生的自愈过程的物理形态，并通过该模型估计了均质化的力学性能。在不同的愈合条件下研究了愈合的裂缝数量和愈合部件的机械性质的影响。结果表明，0.2 mm和0.4 mm是相同愈合年龄下恢复模量突然变化的临界裂纹宽度。水分供应对愈合的影响比温度更大，特别是在较高温度下。对于窄裂缝（e < 0.1），恢复的力学性能仅取决于裂纹面是否通过愈合而附着，而与愈合组分的模量无关。然而，愈合组件的机械特性对较宽裂缝的愈合具有更显着的影响。最后，实验结果验证了理论计算。