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A platform for research: civil engineering, architecture and urbanism
Grouting material for reinforcing medium-coarse sand layer and preparation method thereof
The invention relates to the technical field of building materials, in particular to a grouting material for reinforcing a medium-coarse sand layer and a preparation method thereof.The grouting material is prepared from 30-50 parts of superfine slag powder, 15-45 parts of water, 0.2-0.4 part of a water reducing agent and 1.7-4.5 parts of an alkaline exciting agent, and the alkaline exciting agent is a mixture of sodium hydroxide, sodium carbonate, calcium hydroxide and calcium formate. The superfine slag powder is adopted as a gelling component of the grouting material, the activity of the superfine slag powder is thoroughly excited through the alkaline exciting agent with specific composition, and the defect of the superfine slag powder is overcome by matching with the water reducing agent with specific dosage, so that the prepared grouting material is high in early strength, good in fluidity, appropriate in hardening time and suitable for construction characteristics of a medium-coarse sand layer reinforcing process; and preparation of the building material only by using the superfine slag powder becomes reality.
本发明涉及建筑材料技术领域，尤其涉及一种中粗砂层加固用注浆材料及其制备方法，该注浆材料由矿渣微粉30～50份，水15～45份，减水剂0.2～0.4份和碱性激发剂1.7～4.5份制成，其中碱性激发剂为氢氧化钠、碳酸钠、氢氧化钙和甲酸钙的混合物。采用矿渣微粉作为注浆材料的胶凝成分，通过特定组成的碱性激发剂彻底激发矿渣微粉的活性：配合特定用量的减水剂，改善了矿渣微粉的缺陷，使制得的注浆材料早期强度高，流动性好，硬化时间适宜，适合中粗砂层加固过程的施工特点，让仅采用矿渣微粉制备建筑材料成为了现实。
Grouting material for reinforcing medium-coarse sand layer and preparation method thereof
The invention relates to the technical field of building materials, in particular to a grouting material for reinforcing a medium-coarse sand layer and a preparation method thereof.The grouting material is prepared from 30-50 parts of superfine slag powder, 15-45 parts of water, 0.2-0.4 part of a water reducing agent and 1.7-4.5 parts of an alkaline exciting agent, and the alkaline exciting agent is a mixture of sodium hydroxide, sodium carbonate, calcium hydroxide and calcium formate. The superfine slag powder is adopted as a gelling component of the grouting material, the activity of the superfine slag powder is thoroughly excited through the alkaline exciting agent with specific composition, and the defect of the superfine slag powder is overcome by matching with the water reducing agent with specific dosage, so that the prepared grouting material is high in early strength, good in fluidity, appropriate in hardening time and suitable for construction characteristics of a medium-coarse sand layer reinforcing process; and preparation of the building material only by using the superfine slag powder becomes reality.
本发明涉及建筑材料技术领域，尤其涉及一种中粗砂层加固用注浆材料及其制备方法，该注浆材料由矿渣微粉30～50份，水15～45份，减水剂0.2～0.4份和碱性激发剂1.7～4.5份制成，其中碱性激发剂为氢氧化钠、碳酸钠、氢氧化钙和甲酸钙的混合物。采用矿渣微粉作为注浆材料的胶凝成分，通过特定组成的碱性激发剂彻底激发矿渣微粉的活性：配合特定用量的减水剂，改善了矿渣微粉的缺陷，使制得的注浆材料早期强度高，流动性好，硬化时间适宜，适合中粗砂层加固过程的施工特点，让仅采用矿渣微粉制备建筑材料成为了现实。
Grouting material for reinforcing medium-coarse sand layer and preparation method thereof
一种中粗砂层加固用注浆材料及其制备方法
GAO ZHENGUO (author) / LIU MIAO (author) / WANG YAO (author) / GAO JINGCHI (author) / LIU XIN (author) / WANG SHUDONG (author) / LI WENJIANG (author)
2022-04-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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