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A platform for research: civil engineering, architecture and urbanism
Ultra-thick recycled aggregate asphalt stabilized macadam base mixture and preparation method thereof
The invention discloses an ultra-thick recycled aggregate asphalt stabilized macadam base mixture and a preparation method thereof, wherein the ultra-thick recycled aggregate asphalt stabilized macadam base mixture comprises the components in percentage by mass: 87-95% of recycled aggregate, 4-6% of asphalt, 1-3% of mineral powder, 1-2% of cement and 0.3-0.5% of basalt fibers. The preparation method of the ultra-thick recycled aggregate asphalt stabilized macadam base mixture comprises the steps: heating asphalt to a molten state, and preserving heat for later use; respectively heating the regenerated aggregate, the mineral powder and the cement for later use; uniformly mixing the heated mineral powder and cement to obtain a mixture; and mixing the heated regenerated aggregate and the basalt fibers, adding asphalt and the mixture, and uniformly mixing to obtain the ultra-thick regenerated asphalt stabilized macadam base mixture. The problem of construction waste accumulation is solved, and meanwhile natural aggregate can be saved; the condition of pavement reflection cracks caused by the use of a semi-rigid base layer is solved; and meanwhile, the problems that due to layered construction, interlayer continuity is difficult to guarantee, and too large tensile stress is generated at the bottom of a flexible base layer are solved.
本发明公开了一种超厚再生骨料沥青稳定碎石基层混合料及其制备方法，按质量百分比计，包括，87～95％再生集料、4～6％的沥青、1～3％的矿粉、1～2％的水泥和0.3～0.5％的玄武岩纤维；超厚再生骨料沥青稳定碎石基层混合料的制备方法，包括，将沥青加热至熔融状态，保温备用；分别加热再生集料、矿粉、水泥，备用；将加热后的矿粉和水泥拌和均匀，得到混合物；将加热后的再生集料以及玄武岩纤维拌和，再加入沥青和所述混合物拌和均匀得到超厚再生沥青稳定碎石基层混合料。本发明解决建筑垃圾堆积，同时可以节约天然骨料；解决因半刚性基层的使用造成的路面反射裂缝的情况；同时解决因分层施工造成的难以保证层间连续、柔性基层层底产生过大的拉应力等问题。
Ultra-thick recycled aggregate asphalt stabilized macadam base mixture and preparation method thereof
The invention discloses an ultra-thick recycled aggregate asphalt stabilized macadam base mixture and a preparation method thereof, wherein the ultra-thick recycled aggregate asphalt stabilized macadam base mixture comprises the components in percentage by mass: 87-95% of recycled aggregate, 4-6% of asphalt, 1-3% of mineral powder, 1-2% of cement and 0.3-0.5% of basalt fibers. The preparation method of the ultra-thick recycled aggregate asphalt stabilized macadam base mixture comprises the steps: heating asphalt to a molten state, and preserving heat for later use; respectively heating the regenerated aggregate, the mineral powder and the cement for later use; uniformly mixing the heated mineral powder and cement to obtain a mixture; and mixing the heated regenerated aggregate and the basalt fibers, adding asphalt and the mixture, and uniformly mixing to obtain the ultra-thick regenerated asphalt stabilized macadam base mixture. The problem of construction waste accumulation is solved, and meanwhile natural aggregate can be saved; the condition of pavement reflection cracks caused by the use of a semi-rigid base layer is solved; and meanwhile, the problems that due to layered construction, interlayer continuity is difficult to guarantee, and too large tensile stress is generated at the bottom of a flexible base layer are solved.
本发明公开了一种超厚再生骨料沥青稳定碎石基层混合料及其制备方法，按质量百分比计，包括，87～95％再生集料、4～6％的沥青、1～3％的矿粉、1～2％的水泥和0.3～0.5％的玄武岩纤维；超厚再生骨料沥青稳定碎石基层混合料的制备方法，包括，将沥青加热至熔融状态，保温备用；分别加热再生集料、矿粉、水泥，备用；将加热后的矿粉和水泥拌和均匀，得到混合物；将加热后的再生集料以及玄武岩纤维拌和，再加入沥青和所述混合物拌和均匀得到超厚再生沥青稳定碎石基层混合料。本发明解决建筑垃圾堆积，同时可以节约天然骨料；解决因半刚性基层的使用造成的路面反射裂缝的情况；同时解决因分层施工造成的难以保证层间连续、柔性基层层底产生过大的拉应力等问题。
Ultra-thick recycled aggregate asphalt stabilized macadam base mixture and preparation method thereof
一种超厚再生骨料沥青稳定碎石基层混合料及其制备方法
XIAO PENG (author) / DING HAO (author) / WU YUHAO (author) / GU QIANLI (author) / ZHANG CONG (author) / WANG YANGBO (author) / MENG WEIJIE (author)
2021-07-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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