聚酯纤维引气道面混凝土冻融强度试验研究

Experimental Research on Freezing-thaw Strength of Polyester Fiber Air-entrained Pavement Concrete

北方机场道面水泥混凝土对抗冻性和强度的要求较高,在引气混凝土中掺入聚酯纤维,可在满足混凝土抗冻性要求的同时,提高混凝土的强度。试验表明,聚酯纤维掺量存在着最佳含量。在该掺量下,可以有效地提高混凝土冻融后的抗压、劈裂和抗弯拉强度。

Because of the high requirement for the frost resistance and strength of pavement concrete in Northern airport, the polyester fiber isused into air-entrained concrete to improve the frost resistance and strength of concrete. The test results show that the polyester fiber has the optimum content. The compressive, the splitting and the bending strengths of concrete are improved with this optimum dosage.