A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Engineering rapid repair material suitable for negative temperature environment and preparation method thereof
The invention belongs to the field of road materials, and particularly relates to an engineering rapid repair material suitable for a negative temperature environment and a preparation method of the engineering rapid repair material. Raw materials of the quick-hardening sulphoaluminate cement mortar comprise the following components in parts by weight: 100 parts of quick-hardening sulphoaluminate cement, 80-150 parts of sand, 18-26 parts of water, 0.3 part of lithium carbonate, 0.5-1.5 parts of a polycarboxylate superplasticizer, 0.5 part of nano silicon dioxide, 0.2 part of triethanolamine or 1.5 parts of calcium nitrate. According to the invention, the quick-hardening sulphoaluminate cement has the characteristic of large heat release during early reaction, and is used as a base material, so that the interior of the whole gel system is still kept at a relatively high temperature in a negative temperature environment, and the early hydration reaction is ensured to be smoothly carried out; the nano silicon dioxide is used as a nano nucleating agent, a nucleating point location is provided for an early-stage hydration product, and formation and development of an early-stage anti-freezing structure are promoted. Therefore, preparation of the rapid repair material for engineering, which can be normally hydrated and hardened in a negative temperature environment and has high early strength, is realized.
本发明属于道路材料领域，具体涉及一种适用于负温环境下的工程用快速修复材料及其制备方法。其原料按重量份计，由以下组分组成:快硬硫铝酸盐水泥100份，砂80‑150份，水18‑26份，碳酸锂0.3份，聚羧酸减水剂0.5‑1.5份，纳米二氧化硅0.5份，三乙醇胺0.2份，或硝酸钙1.5份。本发明利用快硬硫铝酸盐水泥早期反应放热量大的特点，以其为基体材料，使整个胶凝体系在负温环境中内部仍保持较高温度，保证早期水化反应顺利进行；以纳米二氧化硅为纳米成核剂，为早期水化产物提供“成核点位”，促进早期防冻结构的形成与发展。从而实现了一种在负温环境下能够正常水化硬化，且早期强度高的工程用快速修复材料的配制。
Engineering rapid repair material suitable for negative temperature environment and preparation method thereof
The invention belongs to the field of road materials, and particularly relates to an engineering rapid repair material suitable for a negative temperature environment and a preparation method of the engineering rapid repair material. Raw materials of the quick-hardening sulphoaluminate cement mortar comprise the following components in parts by weight: 100 parts of quick-hardening sulphoaluminate cement, 80-150 parts of sand, 18-26 parts of water, 0.3 part of lithium carbonate, 0.5-1.5 parts of a polycarboxylate superplasticizer, 0.5 part of nano silicon dioxide, 0.2 part of triethanolamine or 1.5 parts of calcium nitrate. According to the invention, the quick-hardening sulphoaluminate cement has the characteristic of large heat release during early reaction, and is used as a base material, so that the interior of the whole gel system is still kept at a relatively high temperature in a negative temperature environment, and the early hydration reaction is ensured to be smoothly carried out; the nano silicon dioxide is used as a nano nucleating agent, a nucleating point location is provided for an early-stage hydration product, and formation and development of an early-stage anti-freezing structure are promoted. Therefore, preparation of the rapid repair material for engineering, which can be normally hydrated and hardened in a negative temperature environment and has high early strength, is realized.
本发明属于道路材料领域，具体涉及一种适用于负温环境下的工程用快速修复材料及其制备方法。其原料按重量份计，由以下组分组成:快硬硫铝酸盐水泥100份，砂80‑150份，水18‑26份，碳酸锂0.3份，聚羧酸减水剂0.5‑1.5份，纳米二氧化硅0.5份，三乙醇胺0.2份，或硝酸钙1.5份。本发明利用快硬硫铝酸盐水泥早期反应放热量大的特点，以其为基体材料，使整个胶凝体系在负温环境中内部仍保持较高温度，保证早期水化反应顺利进行；以纳米二氧化硅为纳米成核剂，为早期水化产物提供“成核点位”，促进早期防冻结构的形成与发展。从而实现了一种在负温环境下能够正常水化硬化，且早期强度高的工程用快速修复材料的配制。
Engineering rapid repair material suitable for negative temperature environment and preparation method thereof
一种适用于负温环境下的工程用快速修复材料及其制备方法
LUO XIN (author) / ZHANG HENGBO (author) / BAI ERLEI (author) / YIN YANQI (author) / XU JINYU (author) / WANG HAN (author) / WANG HAIFU (author) / WANG ZHIHANG (author)
2022-04-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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