在试验研究的基础上，探讨了在限定级配下，由天然砂与石屑混合组成的细集料的棱角性(FAA)对沥青混合料体积性质、水敏感性的影响。
By experimental study, how the moisture susceptibility and volume property was influenced by the FAA value of mixed fine aggregate which includes natural sand and stone chips was discussed.
随着机制砂棱角性指数的增大，新拌砂浆的流动性变差，但硬化后砂浆的强度和收缩性能得到适当的改善。
With the increased angularity index of the manufactured sand, the fluidity of the new mortar is becoming bad but the intensity and contractibility is improving after the hardening process.
与天然砂相比，机制砂富含石粉，颗粒表面粗糙多棱角，并且岩性多样。
Compared with nature sand, MS (manufactured sand) is characteristic of rough particle and angular, with a large amount of stone dust and lithofacies diversity.
外观洁白，多棱角，无粉末积附于石英砂表面。
Appearance white, more edges and corners, without powder product attached to quartz sand surface.
外观洁白，多棱角，无粉末积附于石英砂表面。
Appearance white, more edges and corners, without powder product attached to quartz sand surface.
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