A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses polymer cement mortar for repairing a concrete structure. Comprising the following components: quartz sand, sulphoaluminate cement, Portland cement, metakaolin, silica fume, aluminum sulfate, rubber powder, anhydrite, a defoaming agent, sodium silicate, a water repellent agent, a water reducing agent, cellulose, wood fiber, titanium dioxide, dye, citric acid, sodium gluconate and a wetting agent. The product has the advantages of high compressive and flexural strength, high surface hardness, randomly adjustable color according to requirements, high hydration rate, high condensation speed, no need of long-term maintenance, low shrinkage rate, no hollowing and no cracking in large-area construction; the waterproof effect is excellent, namely the anti-freezing and anti-thawing effect is achieved; the problems that common polymer cement mortar is large in expansion and contraction, prone to hollowing and cracking in large-area construction, high in compression-bending ratio, insufficient in surface hardness, prone to dusting, single in color and the like, and has potential safety hazards are solved.
本发明公开的一种混凝土结构修复用聚合物水泥砂浆，其重量比例计，包括以下组分：石英砂、硫铝酸盐水泥、硅酸盐水泥、偏高岭土、微硅粉、硫酸铝、胶粉、无水硬石膏、消泡剂、硅酸钠、疏水剂、减水剂、纤维素、木质纤维、钛白粉、染料、柠檬酸、葡萄糖酸钠、润湿剂；本产品抗压抗折强度高，表面硬度大，颜色可根据需求随意调整，且水化速率高凝结速度快，无需长期养生，同时收缩率低，大面积施工不空鼓、不开裂；防水效果出色，即同时具备抗冻融效果；解决了普通的聚合物水泥砂浆伸缩大，大面积施工易空鼓开裂、压折比高，表面硬度不够、易起砂，色调单一等缺点明显，具有安全隐患的问题。
The invention discloses polymer cement mortar for repairing a concrete structure. Comprising the following components: quartz sand, sulphoaluminate cement, Portland cement, metakaolin, silica fume, aluminum sulfate, rubber powder, anhydrite, a defoaming agent, sodium silicate, a water repellent agent, a water reducing agent, cellulose, wood fiber, titanium dioxide, dye, citric acid, sodium gluconate and a wetting agent. The product has the advantages of high compressive and flexural strength, high surface hardness, randomly adjustable color according to requirements, high hydration rate, high condensation speed, no need of long-term maintenance, low shrinkage rate, no hollowing and no cracking in large-area construction; the waterproof effect is excellent, namely the anti-freezing and anti-thawing effect is achieved; the problems that common polymer cement mortar is large in expansion and contraction, prone to hollowing and cracking in large-area construction, high in compression-bending ratio, insufficient in surface hardness, prone to dusting, single in color and the like, and has potential safety hazards are solved.
本发明公开的一种混凝土结构修复用聚合物水泥砂浆，其重量比例计，包括以下组分：石英砂、硫铝酸盐水泥、硅酸盐水泥、偏高岭土、微硅粉、硫酸铝、胶粉、无水硬石膏、消泡剂、硅酸钠、疏水剂、减水剂、纤维素、木质纤维、钛白粉、染料、柠檬酸、葡萄糖酸钠、润湿剂；本产品抗压抗折强度高，表面硬度大，颜色可根据需求随意调整，且水化速率高凝结速度快，无需长期养生，同时收缩率低，大面积施工不空鼓、不开裂；防水效果出色，即同时具备抗冻融效果；解决了普通的聚合物水泥砂浆伸缩大，大面积施工易空鼓开裂、压折比高，表面硬度不够、易起砂，色调单一等缺点明显，具有安全隐患的问题。
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Concrete structure repairing mortar and repairing method
| European Patent Office | 2018
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