乳化沥青冷再生试件空隙率测定方法的试验研究

Experimental Study on the Porosity Measuring Methods of Cold Recycling Emulsified Asphalt Specimens

对于乳化沥青冷再生,选取两个不同的级配,采用马歇尔击实法室内成型试件,采用体积法、corelock法、蜡封法、表干法四种试验方法测定试件的毛体积相对密度,进而换算空隙率。将用上述四种方法测定试件的空隙率进行横向对比,结果表明:corelock法、蜡封法及表干法三种方法测定的试验结果较为接近,实际应用中可以选用表干法来测定乳化沥青冷再生混合料试件的空隙率。

With emulsified asphalt grading porosity by Marshall compaction method. by volumetric method, corelock cold recycling mixture, Then we measured their method, wax - sealing specimens were moulded in two different bulk volume relative density to calculate the method and saturated surface dry method. Comparing the results, we found that the results corelock method, wax -sealing method and saturated surface dry method were in good agreement with each other. And we could choose saturated surface dry method to measure porosity in practical use.