In this article, it has made a research of the quality of an early-stage setting ordinary concrete undergoing a freezing test or repeated freezing and thawing test.
本文研究了普通混凝土在硬化初期受到一次冻结或反复冻融后对质量的影响。
Freezing and thawing test shows that the figuration and cross-section of cement-based materials (paste, mortar and concrete) are different after they damage because of their different pore structures.
冻融循环试验表明，由于净浆、砂浆和混凝土这三种水泥基材料孔结构的不同，使得其破坏时的外观和断面形状各不相同。
This paper expounds origin and mechanism of concrete of freezing and thawing destroy. The test result validates that silicon powder have great impact on concrete frost resistance.
阐述了混凝土冻融破坏的原因、机理，并通过实验验证了硅粉对混凝土抗冻性能的影响。
The experimental study of plain concrete test cubes and a few prismoids, both of what classified to four ranks, suffering 0, 25, 50, 75,100 and 125 cycles of freezing and thawing were carried out.
对经过0、25、50、75、100、125次冻融循环的四个不同等级的普通混凝土立方体试块和少部分棱柱体试块进行了试验研究。
The results show that the model of damage evolution is suitable for that four types of concrete of our test conditions, and it can characterize their freezing-thawing damage evolution process better.
试验结果表明，本文所选择的混凝土损伤演变模型可以较好的表征该条件下上述四种混凝土的冻融损伤演变过程。
The results show that the model of damage evolution is suitable for that four types of concrete of our test conditions, and it can characterize their freezing-thawing damage evolution process better.
试验结果表明，本文所选择的混凝土损伤演变模型可以较好的表征该条件下上述四种混凝土的冻融损伤演变过程。
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