空隙率对水稳定性试验结果的影响

Effect of Void Ratio on Water Stability Test

为了确定多温度马歇尔试验试件的空隙率控制水平,开展了具有不同空隙率试件的多温度马歇尔试验研究。选择AASHTOT-283试验作为沥青混合料水稳定性评价的参考标准,对比了在不同空隙率水平下多温度马歇尔试验与AASHTOT-283试验的检验结果。研究结果表明空隙率对多温度马歇尔试验结果有显著影响,控制沥青混合料试件的空隙率在8%±1%的条件下,多温度马歇尔试验与AASHTOT-283试验的检验结果一致。

To choose the void ratio level of asphalt mixture in multi-temperature Marshall test,this paper starts the study of water stability of asphalt mixture with different void ratio.It makes the AASHTO T-283 test as a reference and compares the multi- temperature Marshall test results of asphalt mixtures with two void ratio levels with the AASHTO T-283 test results.The conclusions show that void ratio affects the multi- temperature Marshall test result distinctly and its test result is as same as the AASHTO T-283 test with mixture void ratio of 8%±1%.