Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grading design method of recycled drainage asphalt mixture
The invention discloses a gradation design method of a recycled drainage asphalt mixture, and belongs to the field of asphalt mixture gradation design methods. The method comprises the following steps: testing the recycled RAP material to obtain RAP material grading parameters; testing the newly added material to obtain the grading parameters of the newly added material; establishing a calculation formula of each volume parameter of the recycled drainage asphalt mixture, establishing an equation according to a quantitative relationship of each volume parameter in the recycled drainage asphalt mixture, and solving the equation under a designed void ratio to obtain a mass ratio of newly-added coarse and fine aggregates; fitting according to the mass ratio of the newly-added coarse aggregate to the newly-added fine aggregate to obtain the recycled drainage asphalt mixture gradation; and testing the void ratio of the recycled drainage asphalt mixture, and finishing the grading design when the actually measured void ratio is within the range of +/-1% of the designed void ratio. According to the method, the characteristics of the RAP material are fully considered while the grading design method is simplified, so that the grading design is more reasonable, and the grading design efficiency is improved.
本发明公开了一种再生排水沥青混合料的级配设计方法，属于沥青混合料级配设计方法领域。方法包括：对回收的RAP材料进行测试，获取RAP材料级配参数；对新加材料进行测试，获取新加材料级配参数；建立再生排水沥青混合料各体积参数计算公式，根据再生排水沥青混合料中各体积参数的数量关系建立方程，在设计空隙率下求解方程得到新加粗、细集料的质量占比；根据新加粗、细集料的质量占比拟合得到再生排水沥青混合料级配；测试再生排水沥青混合料空隙率，当实测空隙率在设计空隙率±1％范围内，完成级配设计。本发明在简化级配设计方法的同时充分考虑了RAP材料的特点，使得级配设计更加合理，提升了级配设计的效率。
Grading design method of recycled drainage asphalt mixture
The invention discloses a gradation design method of a recycled drainage asphalt mixture, and belongs to the field of asphalt mixture gradation design methods. The method comprises the following steps: testing the recycled RAP material to obtain RAP material grading parameters; testing the newly added material to obtain the grading parameters of the newly added material; establishing a calculation formula of each volume parameter of the recycled drainage asphalt mixture, establishing an equation according to a quantitative relationship of each volume parameter in the recycled drainage asphalt mixture, and solving the equation under a designed void ratio to obtain a mass ratio of newly-added coarse and fine aggregates; fitting according to the mass ratio of the newly-added coarse aggregate to the newly-added fine aggregate to obtain the recycled drainage asphalt mixture gradation; and testing the void ratio of the recycled drainage asphalt mixture, and finishing the grading design when the actually measured void ratio is within the range of +/-1% of the designed void ratio. According to the method, the characteristics of the RAP material are fully considered while the grading design method is simplified, so that the grading design is more reasonable, and the grading design efficiency is improved.
本发明公开了一种再生排水沥青混合料的级配设计方法，属于沥青混合料级配设计方法领域。方法包括：对回收的RAP材料进行测试，获取RAP材料级配参数；对新加材料进行测试，获取新加材料级配参数；建立再生排水沥青混合料各体积参数计算公式，根据再生排水沥青混合料中各体积参数的数量关系建立方程，在设计空隙率下求解方程得到新加粗、细集料的质量占比；根据新加粗、细集料的质量占比拟合得到再生排水沥青混合料级配；测试再生排水沥青混合料空隙率，当实测空隙率在设计空隙率±1％范围内，完成级配设计。本发明在简化级配设计方法的同时充分考虑了RAP材料的特点，使得级配设计更加合理，提升了级配设计的效率。
Grading design method of recycled drainage asphalt mixture
一种再生排水沥青混合料的级配设计方法
LI QIANG (Autor:in) / WU JIAHUI (Autor:in) / WANG NING (Autor:in) / WANG JIAQING (Autor:in) / JIN HAOXUAN (Autor:in) / ROSAN (Autor:in) / WANG XIAOWEI (Autor:in)
23.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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