Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Special grouting material for treating bridgehead transition slab void and application method thereof
The invention relates to the technical field of bridge repair materials, and particularly discloses a special grouting material for treating bridgehead transition slab void and an application method thereof. The special grouting material for treating bridgehead transition slab void comprises the following components in parts by weight: 485-515 parts of cement, 485-515 parts of first-grade fly ash, 4-6 parts of a polycarboxylate superplasticizer, 8-12 parts of a calcium oxide expanding agent, 48-52 parts of a magnesium oxide expanding agent and 5.4-6.6 parts of a viscosity reducer, the viscosity reducer is a copolymer of at least two unsaturated monomers including polyethylene glycol maleate and methyl methacrylate. In the slurry prepared by the grouting material disclosed by the invention, the adsorption of the binding material particles to free water is reduced, and the peak value of water consumed by the expanding agent is delayed, so that the flowability of the slurry is improved, and the slurry can more sufficiently permeate in a roadbed soil layer at a void part; and improvement of the repairing effect on the roadbed soil layer of the void part is facilitated.
本申请涉及桥梁修复材料技术领域，具体公开了一种桥头搭板脱空处治专用压浆料及其应用方法。所述桥头搭板脱空处治专用压浆料包括如下重量份的组分：水泥485‑515份，一级粉煤灰485‑515份，聚羧酸减水剂4‑6份，氧化钙膨胀剂8‑12份，氧化镁膨胀剂48‑52份，降粘剂5.4‑6.6份，所述降粘剂为包括马来酸聚乙二醇酯和甲基丙烯酸甲酯在内的至少两种不饱和单体的共聚物。在本申请的压浆料配制的浆体中，由于胶凝材料颗粒对自由水的吸附减少，且膨胀剂消耗水分的峰值延后出现，因此提高了浆体的流动性，使得浆体在脱空部位的路基土层中能够更加充分地渗透，有助于改善对脱空部位的路基土层的修复效果。
Special grouting material for treating bridgehead transition slab void and application method thereof
The invention relates to the technical field of bridge repair materials, and particularly discloses a special grouting material for treating bridgehead transition slab void and an application method thereof. The special grouting material for treating bridgehead transition slab void comprises the following components in parts by weight: 485-515 parts of cement, 485-515 parts of first-grade fly ash, 4-6 parts of a polycarboxylate superplasticizer, 8-12 parts of a calcium oxide expanding agent, 48-52 parts of a magnesium oxide expanding agent and 5.4-6.6 parts of a viscosity reducer, the viscosity reducer is a copolymer of at least two unsaturated monomers including polyethylene glycol maleate and methyl methacrylate. In the slurry prepared by the grouting material disclosed by the invention, the adsorption of the binding material particles to free water is reduced, and the peak value of water consumed by the expanding agent is delayed, so that the flowability of the slurry is improved, and the slurry can more sufficiently permeate in a roadbed soil layer at a void part; and improvement of the repairing effect on the roadbed soil layer of the void part is facilitated.
本申请涉及桥梁修复材料技术领域，具体公开了一种桥头搭板脱空处治专用压浆料及其应用方法。所述桥头搭板脱空处治专用压浆料包括如下重量份的组分：水泥485‑515份，一级粉煤灰485‑515份，聚羧酸减水剂4‑6份，氧化钙膨胀剂8‑12份，氧化镁膨胀剂48‑52份，降粘剂5.4‑6.6份，所述降粘剂为包括马来酸聚乙二醇酯和甲基丙烯酸甲酯在内的至少两种不饱和单体的共聚物。在本申请的压浆料配制的浆体中，由于胶凝材料颗粒对自由水的吸附减少，且膨胀剂消耗水分的峰值延后出现，因此提高了浆体的流动性，使得浆体在脱空部位的路基土层中能够更加充分地渗透，有助于改善对脱空部位的路基土层的修复效果。
Special grouting material for treating bridgehead transition slab void and application method thereof
桥头搭板脱空处治专用压浆料及其应用方法
LIU QINGLIANG (Autor:in) / MIAO JIANHUA (Autor:in) / JIAO HENGJIAN (Autor:in) / LUO WENLIN (Autor:in) / LIU QIWEI (Autor:in) / SHAN HONGBING (Autor:in) / MENG YUANYUAN (Autor:in) / GE WANGUANG (Autor:in)
04.07.2023
Patent
Elektronische Ressource
Chinesisch
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