A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Design method of semi-flexible pavement matrix asphalt mixture
The invention provides a semi-flexible pavement matrix asphalt mixture design method, a matrix asphalt mixture is composed of coarse aggregate, fine aggregate, mineral powder and asphalt, according to a skeleton filling theory, step-by-step filling is carried out in a space forming process, and the blending proportion of the coarse aggregate, the fine aggregate, the mineral powder and the asphalt of the matrix asphalt mixture is controlled through volume parameter changes in the filling process; according to the influence of structural asphalt and free asphalt in the asphalt on gaps, the structural asphalt wraps the aggregate and the residual space of the mineral powder are voids, the free asphalt seals a part of voids to form matrix asphalt mixture communicating gaps, and the doping proportion of the aggregate, the mineral powder and the asphalt is set and controlled according to parameters of the communicating gaps. According to the design method of the matrix asphalt mixture, the material space filling interference influence is avoided, the volume stability of the matrix asphalt mixture is guaranteed, the designed matrix asphalt mixture has enough communicating gaps, the filling degree and saturation degree of cement mortar are guaranteed, and it is guaranteed that the semi-flexible pavement material has good performance.
本发明提供一种半柔性路面基体沥青混合料设计方法，基体沥青混合料由粗集料、细集料、矿粉、沥青构成，依据骨架填充理论，在空间构成过程中逐级填充，通过填充过程中体积参数变化，控制基体沥青混合料粗集料、细集料、矿粉、沥青掺配比例；依据沥青中结构沥青与自由沥青对空隙影响，结构沥青裹附集料、矿粉剩余空间为空隙率，自由沥青封闭一部分空隙率形成基体沥青混合料连通空隙，依据连通空隙参数设置控制集料、矿粉与沥青掺入比例。本发明提供的基体沥青混合料设计方法，避免材料空间填充干涉影响，保证基体沥青混合料体积稳定性，设计的基体沥青混合料具有足够连通空隙，确保水泥胶浆灌入度、饱和度，保证半柔性路面材料具有较好性能。
Design method of semi-flexible pavement matrix asphalt mixture
The invention provides a semi-flexible pavement matrix asphalt mixture design method, a matrix asphalt mixture is composed of coarse aggregate, fine aggregate, mineral powder and asphalt, according to a skeleton filling theory, step-by-step filling is carried out in a space forming process, and the blending proportion of the coarse aggregate, the fine aggregate, the mineral powder and the asphalt of the matrix asphalt mixture is controlled through volume parameter changes in the filling process; according to the influence of structural asphalt and free asphalt in the asphalt on gaps, the structural asphalt wraps the aggregate and the residual space of the mineral powder are voids, the free asphalt seals a part of voids to form matrix asphalt mixture communicating gaps, and the doping proportion of the aggregate, the mineral powder and the asphalt is set and controlled according to parameters of the communicating gaps. According to the design method of the matrix asphalt mixture, the material space filling interference influence is avoided, the volume stability of the matrix asphalt mixture is guaranteed, the designed matrix asphalt mixture has enough communicating gaps, the filling degree and saturation degree of cement mortar are guaranteed, and it is guaranteed that the semi-flexible pavement material has good performance.
本发明提供一种半柔性路面基体沥青混合料设计方法，基体沥青混合料由粗集料、细集料、矿粉、沥青构成，依据骨架填充理论，在空间构成过程中逐级填充，通过填充过程中体积参数变化，控制基体沥青混合料粗集料、细集料、矿粉、沥青掺配比例；依据沥青中结构沥青与自由沥青对空隙影响，结构沥青裹附集料、矿粉剩余空间为空隙率，自由沥青封闭一部分空隙率形成基体沥青混合料连通空隙，依据连通空隙参数设置控制集料、矿粉与沥青掺入比例。本发明提供的基体沥青混合料设计方法，避免材料空间填充干涉影响，保证基体沥青混合料体积稳定性，设计的基体沥青混合料具有足够连通空隙，确保水泥胶浆灌入度、饱和度，保证半柔性路面材料具有较好性能。
Design method of semi-flexible pavement matrix asphalt mixture
一种半柔性路面基体沥青混合料设计方法
WU ZHIGANG (author) / REN YUAN (author) / WANG XIANGBIAO (author) / ZHANG YUBIN (author) / WANG CHUNHONG (author) / YANG DAHAI (author) / NIU JINGTAO (author) / FANG XIAOLI (author) / BAO SHIHUI (author) / CAO ZHULIN (author)
2023-07-21
Patent
Electronic Resource
Chinese
Plant asphalt matrix asphalt mixture and application thereof in semi-flexible pavement
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