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该文对表征热拌沥青混合料抗拉强度的半圆弯拉试验和间接拉伸试验结果采用数值分析方法进行了对比分析。半圆弯拉试验可以显著减少加载带下的永久变形,与间接拉伸试验相比,它更适用于评价热拌沥青混合料的抗拉性能。研究结果表明,半圆弯拉试验与间接拉伸试验完全可以相比较和转换,半圆弯拉试验可以替代间接拉伸试验来评价沥青混合料的强度性能。
In this paper, the semi-circular bending tests and indirect tensile tests, which characterize the tensile strength of hot mix asphalt mixtures, were compared by numerical analysis. The semicircular bending test can significantly reduce the permanent deformation under loading belt, which is more suitable for evaluating the tensile properties of hot mix asphalt than the indirect tensile test. The results show that the semi-circular bending test and indirect tensile test can be compared and converted, semi-circular bending test can be used instead of indirect tensile test to evaluate the strength of asphalt mixture performance.