Actual effect of some SMA surfaces is different. Because of using foreign standard blindly,low percentage of air voids,high asphalt content and so on,some SMA surfaces turn up bleedings and fat spots.
SMA路面实际应用的效果好差不一 ,出现的主要病害是泛油和油斑 ,其根本原因在于直接照搬国外标准 ,空隙率过小 ,压实标准偏低 ,用油量过高。
参考来源 - SMA路面的泛油及其空隙率Through laboratory tests to simulate aggregate segregation of different degree, the parameters of specific surface area, asphalt content and air voids was determined preliminarily as indexes of evaluating aggregate segregation quantitatively.
通过室内试验模拟不同程度的集料离析,初步确定采用比表面积、沥青含量以及孔隙率等参数作为定量评价集料离析的指标。
参考来源 - 沥青路面集料离析评价指标及性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Mixture gradation deeply influences the pavement air voids.
沥青混合料生产级配对路面空隙率有重要影响。
The influence of flotation reagent and pulp concentration on air voids was discussed.
探讨了浮选过程中浮选药剂浓度、矿浆浓度变化对含气率的影响。
The deformation and damage of bituminous mixture with different air voids were investigated.
实验研究了不同空隙率沥青混合料的形变及破坏。
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