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ab料是什么
更新时间： 2021-05-04 12:15:15  

1、A组为优质填料；B组为良好填料

2、A组填料：岩块和粗粒土 其中岩块又分：块石类和碎石类 粗粒土分砂类和砾石类。块石类下的硬块石、漂石土，碎石类的卵石土、碎石土，砾石类的圆砾土、角砾土，砂类的砾砂、粗纱、中砂，这些土均可作为A、B组填料。

3、A、B组填料的区别在与细粒土的含量，细粒土小于15%为A组 15%~30%之间为B组。

关键词： ab 什么

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