A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In-situ cold recycled foamed asphalt mixture and cold recycled pavement construction method
The invention discloses an in-situ cold recycled foamed asphalt mixture which comprises mineral aggregate, cement, foamed asphalt, fibers and mixing water, and the mineral aggregate comprises the following components in parts by weight: 30-40 parts of old pavement milling material with the particle size of less than 5mm, 20-25 parts of old pavement milling material with the particle size of 5mm-32mm, 10-15 parts of new stone with the particle size of less than 5mm and 6-10 parts of new stone with the particle size of 5mm-32mm; the using amount of the cement accounts for 23% of the mass of themineral aggregate, the using amount of the foamed asphalt accounts for 3-4% of the mass of the mineral aggregate, the using amount of the fibers accounts for 0.4-0.5% of the mass of the mineral aggregate, and the using amount of the mixing water accounts for 6-8% of the mass of the mineral aggregate; a pavement construction method using the foamed asphalt mixture in the scheme comprises the following steps: burdening, paving, rolling and curing. Compared with the prior art, the foamed asphalt mixture and the pavement construction method have the advantages that the constructed pavement is smooth, pavement surface layer diseases such as ruts, cracks, pits and pitted surfaces can be effectively eliminated, the gradation of an original pavement mixture can be improved, the road usability is improved, and the service life is prolonged.
本发明公开了一种就地冷再生泡沫沥青混合料，包括矿料、水泥、泡沫沥青、纤维和拌合水，所述的矿料，按重量份数计：包括粒径小于5mm的旧路面铣刨料30~40份、粒径为5mm~32mm的旧路面铣刨料20~25份和粒径小于5mm的新石料10~15份、粒径为5mm~32mm的新石料6~10份；水泥用量占矿料质量的2~3％，泡沫沥青用量占矿料质量的3~4％，纤维用量占矿料质量的0.4~0.5％，拌和水用量占矿料质量的6~8％；而使用本方案泡沫沥青混合料的路面施工方法包括以下步骤：配料、摊铺、碾压和养生。与现有技术相比，使用本方案泡沫沥青混合料及路面施工方法使得施工后的路面平整，能够有效消除车辙、裂缝、坑槽、麻面等路面表层病害，并能改善原路面混合料级配，提高道路使用性能，延长使用寿命。
In-situ cold recycled foamed asphalt mixture and cold recycled pavement construction method
The invention discloses an in-situ cold recycled foamed asphalt mixture which comprises mineral aggregate, cement, foamed asphalt, fibers and mixing water, and the mineral aggregate comprises the following components in parts by weight: 30-40 parts of old pavement milling material with the particle size of less than 5mm, 20-25 parts of old pavement milling material with the particle size of 5mm-32mm, 10-15 parts of new stone with the particle size of less than 5mm and 6-10 parts of new stone with the particle size of 5mm-32mm; the using amount of the cement accounts for 23% of the mass of themineral aggregate, the using amount of the foamed asphalt accounts for 3-4% of the mass of the mineral aggregate, the using amount of the fibers accounts for 0.4-0.5% of the mass of the mineral aggregate, and the using amount of the mixing water accounts for 6-8% of the mass of the mineral aggregate; a pavement construction method using the foamed asphalt mixture in the scheme comprises the following steps: burdening, paving, rolling and curing. Compared with the prior art, the foamed asphalt mixture and the pavement construction method have the advantages that the constructed pavement is smooth, pavement surface layer diseases such as ruts, cracks, pits and pitted surfaces can be effectively eliminated, the gradation of an original pavement mixture can be improved, the road usability is improved, and the service life is prolonged.
本发明公开了一种就地冷再生泡沫沥青混合料，包括矿料、水泥、泡沫沥青、纤维和拌合水，所述的矿料，按重量份数计：包括粒径小于5mm的旧路面铣刨料30~40份、粒径为5mm~32mm的旧路面铣刨料20~25份和粒径小于5mm的新石料10~15份、粒径为5mm~32mm的新石料6~10份；水泥用量占矿料质量的2~3％，泡沫沥青用量占矿料质量的3~4％，纤维用量占矿料质量的0.4~0.5％，拌和水用量占矿料质量的6~8％；而使用本方案泡沫沥青混合料的路面施工方法包括以下步骤：配料、摊铺、碾压和养生。与现有技术相比，使用本方案泡沫沥青混合料及路面施工方法使得施工后的路面平整，能够有效消除车辙、裂缝、坑槽、麻面等路面表层病害，并能改善原路面混合料级配，提高道路使用性能，延长使用寿命。
In-situ cold recycled foamed asphalt mixture and cold recycled pavement construction method
一种就地冷再生泡沫沥青混合料及冷再生路面施工方法
YING JIN (author) / XI XURONG (author) / WANG JUN (author) / XIA YONGFEI (author) / ZHANG MING (author)
2021-02-12
Patent
Electronic Resource
Chinese
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