Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Expressway shallow layer grouting repair process
The invention relates to the technical field of highway construction, and particularly discloses an expressway shallow layer grouting repair process which comprises the following steps: hole arrangement, hole drilling and hole cleaning, sealing ring pre-burying, grouting, hole sealing and pressure stabilizing, and pavement recovery, grouting adopts a double-component grouting material for double-liquid grouting, and the double-component grouting material comprises a component A and a component B, the component A comprises composite polyol, a catalyst, a foam stabilizer and a flexibilizer, the component B comprises isocyanate, the flexibilizer comprises nano-silica and inositol hexaphosphate according to a weight ratio of (2-3.5): 10, and the component B further comprises surface modified vitrified microbeads accounting for 30wt%-40wt% of the isocyanate. The pavement repaired by the shallow grouting repair process is subjected to sampling detection, the maximum compression strength of an obtained sample is not lower than 3.55 MPa, and the bonding strength is not lower than 1.05 MPa.
本申请涉及公路施工的技术领域，具体公开了一种高速公路浅层注浆修复工艺，包括以下步骤：布孔，钻孔及清孔，预埋密封圈，注浆，封孔稳压，恢复路面，注浆采用双组分注浆材料进行双液注浆，双组份注浆材料包括A组分和B组分，A组分包括复合多元醇、催化剂、匀泡剂和增韧剂，B组分包括异氰酸酯，所述增韧剂包括重量比为（2‑3.5）:10的纳米二氧化硅和肌醇六磷酸，所述B组分中还包括用量为异氰酸酯用量30wt%‑40wt%的表面改性玻化微珠；对本申请的浅层注浆修复工艺修复后的路面进行取样检测，得到的试样最大压缩强度不低于3.55MPa，粘结强度不低于1.05MPa。
Expressway shallow layer grouting repair process
The invention relates to the technical field of highway construction, and particularly discloses an expressway shallow layer grouting repair process which comprises the following steps: hole arrangement, hole drilling and hole cleaning, sealing ring pre-burying, grouting, hole sealing and pressure stabilizing, and pavement recovery, grouting adopts a double-component grouting material for double-liquid grouting, and the double-component grouting material comprises a component A and a component B, the component A comprises composite polyol, a catalyst, a foam stabilizer and a flexibilizer, the component B comprises isocyanate, the flexibilizer comprises nano-silica and inositol hexaphosphate according to a weight ratio of (2-3.5): 10, and the component B further comprises surface modified vitrified microbeads accounting for 30wt%-40wt% of the isocyanate. The pavement repaired by the shallow grouting repair process is subjected to sampling detection, the maximum compression strength of an obtained sample is not lower than 3.55 MPa, and the bonding strength is not lower than 1.05 MPa.
本申请涉及公路施工的技术领域，具体公开了一种高速公路浅层注浆修复工艺，包括以下步骤：布孔，钻孔及清孔，预埋密封圈，注浆，封孔稳压，恢复路面，注浆采用双组分注浆材料进行双液注浆，双组份注浆材料包括A组分和B组分，A组分包括复合多元醇、催化剂、匀泡剂和增韧剂，B组分包括异氰酸酯，所述增韧剂包括重量比为（2‑3.5）:10的纳米二氧化硅和肌醇六磷酸，所述B组分中还包括用量为异氰酸酯用量30wt%‑40wt%的表面改性玻化微珠；对本申请的浅层注浆修复工艺修复后的路面进行取样检测，得到的试样最大压缩强度不低于3.55MPa，粘结强度不低于1.05MPa。
Expressway shallow layer grouting repair process
一种高速公路浅层注浆修复工艺
YUAN YUQIN (Autor:in) / WANG ZHONGBING (Autor:in) / LIN JULI (Autor:in) / HOU XIANGLING (Autor:in) / ZHUANG ZHENBAO (Autor:in)
17.12.2024
Patent
Elektronische Ressource
Chinesisch
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