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Pervious concrete mix proportion design method based on optimal volume slurry-bone ratio
A pervious concrete mix proportion design method based on an optimal volume slurry-bone ratio comprises the following steps: the optimal volume slurry-bone ratio VRPA of cement slurry to aggregate isdetermined mainly according to the optimal slurry average wrapping layer thickness of the surface of the aggregate, and the pervious concrete mix proportion is determined according to the determined optimal volume slurry-bone ratio VRPA. The deviation between the designed porosity and the actual porosity can be reduced, so it is guaranteed that the pervious concrete has good mechanical propertiesand water permeability. With the increase of the designed porosity, the reduction of the compressive strength and the breaking strength of the pervious concrete designed by the method is obviously smaller than that of the pervious concrete designed by a traditional method. Moreover, the maximum deviation between the designed porosity and the actual porosity of the pervious concrete designed by themethod is only 1.54% and is far less than the corresponding maximum deviation 8.7% of that of the pervious concrete designed by the traditional design method. The porous structure distribution of thepervious concrete designed by the method has good uniformity, and further shows good functionality.
本发明公开的基于最优体积浆骨比的透水混凝土配合比设计方法，主要根据骨料表面的最佳浆体平均包裹层厚度确定水泥浆体与骨料的最佳体积浆骨比VRPA，并根据确定的最佳体积浆骨比VRPA确定透水混凝土配合比。本发明方法可减小设计孔隙率与实际孔隙率的偏差，从而保证透水混凝土具有良好的力学性能和透水性。随着设计孔隙率的增加，本发明方法设计的透水混凝土的抗压强度和抗折强度的降低明显小于传统方法设计的透水混凝土。并且，本发明方法设计的透水混凝土的设计孔隙度与实际孔隙度的最大偏差仅为1.54%，远远小于传统设计方法相应最大偏差8.7%。采用本发明方法设计的透水混凝土的多孔结构分布具有较好的均匀性，进一步显示出较好的功能性。
Pervious concrete mix proportion design method based on optimal volume slurry-bone ratio
A pervious concrete mix proportion design method based on an optimal volume slurry-bone ratio comprises the following steps: the optimal volume slurry-bone ratio VRPA of cement slurry to aggregate isdetermined mainly according to the optimal slurry average wrapping layer thickness of the surface of the aggregate, and the pervious concrete mix proportion is determined according to the determined optimal volume slurry-bone ratio VRPA. The deviation between the designed porosity and the actual porosity can be reduced, so it is guaranteed that the pervious concrete has good mechanical propertiesand water permeability. With the increase of the designed porosity, the reduction of the compressive strength and the breaking strength of the pervious concrete designed by the method is obviously smaller than that of the pervious concrete designed by a traditional method. Moreover, the maximum deviation between the designed porosity and the actual porosity of the pervious concrete designed by themethod is only 1.54% and is far less than the corresponding maximum deviation 8.7% of that of the pervious concrete designed by the traditional design method. The porous structure distribution of thepervious concrete designed by the method has good uniformity, and further shows good functionality.
本发明公开的基于最优体积浆骨比的透水混凝土配合比设计方法，主要根据骨料表面的最佳浆体平均包裹层厚度确定水泥浆体与骨料的最佳体积浆骨比VRPA，并根据确定的最佳体积浆骨比VRPA确定透水混凝土配合比。本发明方法可减小设计孔隙率与实际孔隙率的偏差，从而保证透水混凝土具有良好的力学性能和透水性。随着设计孔隙率的增加，本发明方法设计的透水混凝土的抗压强度和抗折强度的降低明显小于传统方法设计的透水混凝土。并且，本发明方法设计的透水混凝土的设计孔隙度与实际孔隙度的最大偏差仅为1.54%，远远小于传统设计方法相应最大偏差8.7%。采用本发明方法设计的透水混凝土的多孔结构分布具有较好的均匀性，进一步显示出较好的功能性。
Pervious concrete mix proportion design method based on optimal volume slurry-bone ratio
基于最优体积浆骨比的透水混凝土配合比设计方法
BA MINGFANG (author) / HUANG GUOYANG (author) / LIU JUNZHE (author)
2020-05-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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