Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In-situ cold recycling transformation method of foamed asphalt composite pavement with infiltrated solid sealing layer
The invention relates to the technical field of recycled asphalt, in particular to an in-situ cold recycling transformation method of a foamed asphalt composite pavement with an infiltrated solid sealing layer, which comprises the following steps: (1) milling an original pavement to form an old asphalt material; (2) mixing the old asphalt material, water, cement and the new aggregate to form a premixed material; (3) spraying foamed asphalt to form a flexible base layer, and paving the premixed material on the flexible base layer to form a recycled asphalt pavement layer; (4), paving a permeating and fixing sealing layer coating and forming a permeating and fixing sealing layer; the premix comprises the following components in parts by weight: 75-90 parts of an old asphalt material; 1-5 parts of water; 1-4 parts of cement; 13-25 parts of a new aggregate; 10 to 15 parts of silica fume; 1-3 parts of nano calcium carbonate; 0.3 to 0.5 part of potassium dihydrogen phosphate; the cementationsealing layer coating comprises the following components in parts by mass: 20-25 parts of emulsified asphalt; 10 to 15 parts of a toughening agent; 8-10 parts of a solubilizer; 8-12 parts of an accelerant; 9-12 parts of curing agent. The present invention has the effect of extending the durability of a pavement structure.
本发明涉及再生沥青的技术领域，涉及一种具有渗固封层的泡沫沥青组合路面的就地冷再生改造方法，其包括以下步骤：步骤（1），铣刨原有路面，形成沥青旧料；步骤（2），混合沥青旧料、水、水泥、新集料，形成预拌和料；步骤（3），喷洒泡沫沥青，形成柔性基层，将预拌和料摊铺于柔性基层上以形成再生沥青路面层；步骤（4），铺设渗固封层涂料并形成渗固封层；预拌和料的各组分的重量份如下：沥青旧料75‑90份；水1‑5份；水泥1‑4份；新集料13‑25份；微硅粉10‑15份；纳米碳酸钙1‑3份；亚磷酸二氢钾0.3‑0.5份；渗固封层涂料包括以下质量份数的组分：乳化沥青20‑25份；增韧剂10‑15份；增溶剂8‑10份；促进剂8‑12份；固化剂9‑12份。本发明具有延长路面结构的耐久性的效果。
In-situ cold recycling transformation method of foamed asphalt composite pavement with infiltrated solid sealing layer
The invention relates to the technical field of recycled asphalt, in particular to an in-situ cold recycling transformation method of a foamed asphalt composite pavement with an infiltrated solid sealing layer, which comprises the following steps: (1) milling an original pavement to form an old asphalt material; (2) mixing the old asphalt material, water, cement and the new aggregate to form a premixed material; (3) spraying foamed asphalt to form a flexible base layer, and paving the premixed material on the flexible base layer to form a recycled asphalt pavement layer; (4), paving a permeating and fixing sealing layer coating and forming a permeating and fixing sealing layer; the premix comprises the following components in parts by weight: 75-90 parts of an old asphalt material; 1-5 parts of water; 1-4 parts of cement; 13-25 parts of a new aggregate; 10 to 15 parts of silica fume; 1-3 parts of nano calcium carbonate; 0.3 to 0.5 part of potassium dihydrogen phosphate; the cementationsealing layer coating comprises the following components in parts by mass: 20-25 parts of emulsified asphalt; 10 to 15 parts of a toughening agent; 8-10 parts of a solubilizer; 8-12 parts of an accelerant; 9-12 parts of curing agent. The present invention has the effect of extending the durability of a pavement structure.
本发明涉及再生沥青的技术领域，涉及一种具有渗固封层的泡沫沥青组合路面的就地冷再生改造方法，其包括以下步骤：步骤（1），铣刨原有路面，形成沥青旧料；步骤（2），混合沥青旧料、水、水泥、新集料，形成预拌和料；步骤（3），喷洒泡沫沥青，形成柔性基层，将预拌和料摊铺于柔性基层上以形成再生沥青路面层；步骤（4），铺设渗固封层涂料并形成渗固封层；预拌和料的各组分的重量份如下：沥青旧料75‑90份；水1‑5份；水泥1‑4份；新集料13‑25份；微硅粉10‑15份；纳米碳酸钙1‑3份；亚磷酸二氢钾0.3‑0.5份；渗固封层涂料包括以下质量份数的组分：乳化沥青20‑25份；增韧剂10‑15份；增溶剂8‑10份；促进剂8‑12份；固化剂9‑12份。本发明具有延长路面结构的耐久性的效果。
In-situ cold recycling transformation method of foamed asphalt composite pavement with infiltrated solid sealing layer
具有渗固封层的泡沫沥青组合路面的就地冷再生改造方法
WEI YONGJIAN (Autor:in) / LIN YIFEI (Autor:in) / WU WEILIANG (Autor:in)
07.08.2020
Patent
Elektronische Ressource
Chinesisch
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