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本研究对高性能混凝土添加不同掺量的引气剂和消泡剂,并进行0~300次抗冻融试验,测试其试件在冻融前后的质量、动弹性模量及电通量等试验的数据。对比试验数据得出,随着冻融次数的增加,高性能混凝土的质量损失并不明显。150次冻融循环后是高性能混凝土动弹性模量显著降低的分界点。
In this study, different amounts of air-entraining agent and defoaming agent were added to high-performance concrete, and the resistance to freeze-thaw was tested from 0 to 300 to test the quality, dynamic elastic modulus and electric flux Test data. Compared with the experimental data, the quality loss of HPC is not obvious with the increase of the number of freeze-thaw cycles. After 150 freeze-thaw cycles, the dynamic modulus of high performance concrete significantly reduces the demarcation point.