A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of modified Su-25 asphalt concrete lower surface layer
The invention discloses a construction method of a modified Su-25 asphalt concrete lower surface layer, which comprises the following steps: heating SBS (Styrene Butadiene Styrene) modified asphalt until the SBS modified asphalt is molten for later use, mixing screened aggregates according to the following components: 22 parts of 0-3.7 mm < 2 >, 6 parts of 3.7-6 mm < 2 >, 20 parts of 6-11 mm < 2 >, 29 parts of 11-18 mm < 2 >, 10 parts of 18-24 mm < 2 >, 12 parts of 24-32 mm < 2 > and 1 part of 0-0.6 mm mineral powder, and uniformly mixing with 4 parts of SBS modified asphalt to prepare asphalt concrete, the prepared asphalt concrete is conveyed to a construction site and then is subjected to paving, initial pressing, re-pressing and final pressing, and finally the asphalt concrete pavement is prepared. It needs to be explained that in the process, the effect of improving the structural depth of the asphalt concrete pavement is achieved by controlling the aggregate components of all specifications and the content of the mineral powder and the SBS modified asphalt, and meanwhile, aging of the asphalt in the construction process is prevented by controlling the temperature of all nodes; the rutting resistance of the asphalt concrete pavement and the construction efficiency of the asphalt concrete pavement are improved.
本发明公开了一种改性Sup‑25沥青混凝土下面层施工方法，包括将SBS改性沥青加热至熔融备用，再将筛分后的集料按照：0～3.7mm22份、3.7～6mm6份、6～11mm20份、11～18mm29份、18～24mm10份、24～32mm12份以及0～0.6mm矿粉1份的组份进行混合后再与4份SBS改性沥青均匀混合制成沥青混凝土，制成的沥青混凝土运送至施工现场后进行摊铺、初压、复压、终压并最后制成沥青混凝土路面。需要说明的是，在上述过程中，通过控制各个规格的集料组份以及矿粉、SBS改性沥青的含量来达到改善沥青混凝土路面构造深度的效果，同时通过控制各个节点的温度来防止沥青在施工过程中的老化，提升沥青混凝土路面的抗车辙性能以及沥青混凝土路面的施工效率。
Construction method of modified Su-25 asphalt concrete lower surface layer
The invention discloses a construction method of a modified Su-25 asphalt concrete lower surface layer, which comprises the following steps: heating SBS (Styrene Butadiene Styrene) modified asphalt until the SBS modified asphalt is molten for later use, mixing screened aggregates according to the following components: 22 parts of 0-3.7 mm < 2 >, 6 parts of 3.7-6 mm < 2 >, 20 parts of 6-11 mm < 2 >, 29 parts of 11-18 mm < 2 >, 10 parts of 18-24 mm < 2 >, 12 parts of 24-32 mm < 2 > and 1 part of 0-0.6 mm mineral powder, and uniformly mixing with 4 parts of SBS modified asphalt to prepare asphalt concrete, the prepared asphalt concrete is conveyed to a construction site and then is subjected to paving, initial pressing, re-pressing and final pressing, and finally the asphalt concrete pavement is prepared. It needs to be explained that in the process, the effect of improving the structural depth of the asphalt concrete pavement is achieved by controlling the aggregate components of all specifications and the content of the mineral powder and the SBS modified asphalt, and meanwhile, aging of the asphalt in the construction process is prevented by controlling the temperature of all nodes; the rutting resistance of the asphalt concrete pavement and the construction efficiency of the asphalt concrete pavement are improved.
本发明公开了一种改性Sup‑25沥青混凝土下面层施工方法，包括将SBS改性沥青加热至熔融备用，再将筛分后的集料按照：0～3.7mm22份、3.7～6mm6份、6～11mm20份、11～18mm29份、18～24mm10份、24～32mm12份以及0～0.6mm矿粉1份的组份进行混合后再与4份SBS改性沥青均匀混合制成沥青混凝土，制成的沥青混凝土运送至施工现场后进行摊铺、初压、复压、终压并最后制成沥青混凝土路面。需要说明的是，在上述过程中，通过控制各个规格的集料组份以及矿粉、SBS改性沥青的含量来达到改善沥青混凝土路面构造深度的效果，同时通过控制各个节点的温度来防止沥青在施工过程中的老化，提升沥青混凝土路面的抗车辙性能以及沥青混凝土路面的施工效率。
Construction method of modified Su-25 asphalt concrete lower surface layer
一种改性Sup-25沥青混凝土下面层施工方法
WU TIANXIANG (author) / LYU JINGHUI (author) / WANG BOSHENG (author) / WU YIBIN (author) / JIANG WEIJIANG (author) / MIAO XIANGYI (author)
2022-09-16
Patent
Electronic Resource
Chinese
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