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本研究以混凝土的质量损失率、强度损失率以及外观变化作为评判混凝土冻融损伤的重要指标,在试验的基础上采用ABAQUS有限元分析软件对冻融损伤过程进行数值模拟,探讨冻融循环次数对各强度混凝土的影响以及不同水灰比的混凝土抗冻性能的差别。对比分析表明:数值模拟的计算结果与试验结果相一致,可有效验证并解释试验结论,为混凝土冻融损伤的研究提供理论指导。
In this study, concrete mass loss rate, strength loss rate and appearance change as an important indicator of freeze-thaw damage assessment on the basis of the experiment using ABAQUS finite element analysis software to simulate the freeze-thaw damage process to explore the number of freeze-thaw cycles The impact on the strength of concrete and different water-cement concrete frost resistance differences. The comparative analysis shows that the numerical simulation results are in good agreement with the experimental results, which can effectively verify and explain the experimental conclusions and provide theoretical guidance for the research of concrete freeze-thaw damage.