改善片麻岩沥青混合料水稳性能的试验研究

Experimental Study of Improvement of Moisture Sensitivity of Gneiss Asphalt Mixture

采取掺入普通矿粉、消石灰、水泥、活性矿粉等单一或综合的措施,进行了各种措施下沥青混合料性能指标的室内试验,研究了不同措施对片麻岩沥青混合料路用性能的改善效果。试验结果表明:不同措施的改善效果不同,掺活性矿粉对提高片麻岩沥青混合料水稳定性效果好,而掺普通矿粉的水稳定性效果差。

The different ways of improvement of moisture sensitivity of gneiss asphalt mixture were investigated in the lab test in this study. The ways of improvement were including with the addition of normal filler, lime, cement and active filler, respectively, or with combined addition of two mentioned above. The experimental results indicate that the active filler addition shows the highest residue stability of gneiss asphalt mixture samples, compared with the lowest stability with the addition of normal lifter.