A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for interweaving basalt fibers in asphalt mixture
The invention discloses a method for interweaving basalt fibers in an asphalt mixture, wherein the method comprises the steps: heating SBS modified asphalt to a molten state, and preserving heat for later use; preheating coarse and fine aggregates; heating an asphalt mixture mixing pot to 185+/-5 DEG C, and mixing the preheated coarse and fine aggregates with chopped basalt fibers, lignin fibers and polyester fibers in the mixing pot; then adding the SBS modified asphalt for heat preservation for mixing; and finally doping mineral powder for mixing to prepare an asphalt mixture doped with the basalt fibers, the lignin fibers and the polyester fibers. On the basis of ensuring the improvement of the high-temperature stability and low-temperature crack resistance of the basalt fibers on the asphalt mixture, the defects of the basalt fibers on the improvement of the water stability are overcome, the improvement characteristics of different fibers on the pavement performance of the asphalt mixture are utilized, and strong points are learned to offset weakness, so that the effect of directionally improving the pavement performance is achieved, an interlacing scheme with optimal comprehensive benefits can be obtained, and thus the service life of a road is prolonged, and the manufacturing cost is reduced.
本发明公开了一种沥青混合料中玄武岩纤维交织方法，包括，将SBS改性沥青加热至熔融状态，保温备用；预先加热粗细集料；将沥青混合料拌合锅加热至185±5℃，先将预先加热的粗细集料与短切玄武岩纤维、木质素纤维和聚酯纤维在拌合锅内拌合；再加入保温备用的SBS改性沥青拌合，最后掺入矿粉拌合，制备得到复掺玄武岩纤维、木质素纤维和聚酯纤维的沥青混合料；其中，在保证玄武岩纤维对沥青混合料高温稳定性，低温抗裂性能提升的基础上，弥补其对水稳定性能改善的不足利用不同纤维对沥青混合料路用性能的改善特点，取长补短，以达到定向改善路用性能的效果，亦可得到综合效益最优的交织方案，从而延长道路使用寿命，降低造价。
Method for interweaving basalt fibers in asphalt mixture
The invention discloses a method for interweaving basalt fibers in an asphalt mixture, wherein the method comprises the steps: heating SBS modified asphalt to a molten state, and preserving heat for later use; preheating coarse and fine aggregates; heating an asphalt mixture mixing pot to 185+/-5 DEG C, and mixing the preheated coarse and fine aggregates with chopped basalt fibers, lignin fibers and polyester fibers in the mixing pot; then adding the SBS modified asphalt for heat preservation for mixing; and finally doping mineral powder for mixing to prepare an asphalt mixture doped with the basalt fibers, the lignin fibers and the polyester fibers. On the basis of ensuring the improvement of the high-temperature stability and low-temperature crack resistance of the basalt fibers on the asphalt mixture, the defects of the basalt fibers on the improvement of the water stability are overcome, the improvement characteristics of different fibers on the pavement performance of the asphalt mixture are utilized, and strong points are learned to offset weakness, so that the effect of directionally improving the pavement performance is achieved, an interlacing scheme with optimal comprehensive benefits can be obtained, and thus the service life of a road is prolonged, and the manufacturing cost is reduced.
本发明公开了一种沥青混合料中玄武岩纤维交织方法，包括，将SBS改性沥青加热至熔融状态，保温备用；预先加热粗细集料；将沥青混合料拌合锅加热至185±5℃，先将预先加热的粗细集料与短切玄武岩纤维、木质素纤维和聚酯纤维在拌合锅内拌合；再加入保温备用的SBS改性沥青拌合，最后掺入矿粉拌合，制备得到复掺玄武岩纤维、木质素纤维和聚酯纤维的沥青混合料；其中，在保证玄武岩纤维对沥青混合料高温稳定性，低温抗裂性能提升的基础上，弥补其对水稳定性能改善的不足利用不同纤维对沥青混合料路用性能的改善特点，取长补短，以达到定向改善路用性能的效果，亦可得到综合效益最优的交织方案，从而延长道路使用寿命，降低造价。
Method for interweaving basalt fibers in asphalt mixture
一种沥青混合料中玄武岩纤维交织方法
KOU CHANGJIANG (author) / CHEN ZIKAI (author) / LOU KEKE (author) / XIAO PENG (author) / KANG AIHONG (author) / WU ZHENGGUANG (author)
2021-07-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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