摘要
用体积法设计SMA沥青混合料配合比,可以用体积率控制参数集料间隙率VMA、压实混合料空隙率VV计算单位体积沥青混合料中有效沥青质量Mbe和组合集料质量Ms,用组合集料表观相对密度和毛体积相对密度计算单位质量集料的孔隙体积率,用集料孔隙吸收胶浆（沥青和矿粉的混合物）假设法计算集料吸收沥青质量Mba,Mbe与Mba之和与单位体积沥青混合料质量（Ms＋Mbe＋Mba）之比即为沥青用量Pb。计算结果与经验方法及以前常用经验公式计算值基本一致。更精确的沥青用量计算应考虑纤维稳定剂在VMA中所占的体积率和集料孔隙吸入的矿粉质量。
It can use volume ratio to control gap ratio VMA of parameter mixture when volume method is used to design SMA asphalt mixture.Effective asphalt mass Mbe and compound mixture mass Ms are calculated with compressed mixture void ratio VV.Void volume ratio of unit mass mixture is calculated with surface observation relative density and gross volume relative density.（Mbe＋Mba）/（Ms＋Mbe＋Mba）= Pb.Calculation results are basically agree with that calculated with experience formula.More accurate asphalt amount calculation should take account of the volume ratio of fiber stabile agent in VMA and mineral powder quality absorbed by mixture void.
出处
《河北交通职业技术学院学报》
2010年第4期1-5,共5页
Journal of Hebei Jiaotong Vocational and Technical College
关键词
SMA混合料
配合比
沥青用量
体积参数控制法
吸收胶浆假设法
经验数值计算方法
SMA mixture
mixing ratio
asphalt amount
volume parameter control method
absorb slurry assuming method
experience-numerical calculation method
