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A platform for research: civil engineering, architecture and urbanism
Slag fly ash-based alkali-activated cementing material and preparation method thereof
The invention discloses a slag fly ash-based alkali-activated cementing material and a preparation method thereof. According to the alkali-activated cementing material provided by the invention, the slag powder and the fly ash are used as main ash body materials, the water glass-sodium phosphate is used as a composite exciting agent, and the polyethylene glycol surfactant is introduced; the concrete comprises the following raw materials in parts by mass: 300-330 parts of slag powder, 120-150 parts of fly ash, 95-105 parts of water glass, 20-25 parts of sodium hydroxide, 5-12 parts of sodium phosphate, 4-9 parts of polyethylene glycol, 100-120 parts of water and 1200-1250 parts of standard sand. Compared with the prior art, the phosphate and the surfactant are introduced into the slag fly ash alkali-activated composite gel system, and the two are comprehensively utilized to optimize the pore structure and the shrinkage compensation capability of the gel system, so that the bottleneck problem of serious shrinkage cracking of the alkali-activated gel material is obviously improved, and the alkali-activated gel material has excellent mechanical properties; and the average compressive strength of 28d is 65MPa, so that the method has remarkable economic benefits and application prospects.
本发明公开了一种矿渣粉煤灰基碱激发胶凝材料及其制备方法。本发明提供的碱激发胶凝材料以矿渣粉和粉煤灰作为主要灰体材料，以水玻璃‑磷酸钠作为复合激发剂，并引入聚乙二醇表面活性剂，其原材料的质量份配比为：矿渣粉300‑330份、粉煤灰120‑150份、水玻璃95‑105份、氢氧化钠20‑25份、磷酸钠5‑12份、聚乙二醇4‑9份、水100‑120份、标准砂1200‑1250份。与现有技术相比，本发明通过将磷酸盐和表面活性剂引入矿渣粉煤灰碱激发复合胶凝体系，综合利用两者优化凝胶体系孔隙结构和补偿收缩的能力，显著改善了碱激发胶凝材料收缩开裂严重的瓶颈问题且具备优良的力学性能，28d抗压强度均值为65MPa，具有显著的经济效益和应用前景。
Slag fly ash-based alkali-activated cementing material and preparation method thereof
The invention discloses a slag fly ash-based alkali-activated cementing material and a preparation method thereof. According to the alkali-activated cementing material provided by the invention, the slag powder and the fly ash are used as main ash body materials, the water glass-sodium phosphate is used as a composite exciting agent, and the polyethylene glycol surfactant is introduced; the concrete comprises the following raw materials in parts by mass: 300-330 parts of slag powder, 120-150 parts of fly ash, 95-105 parts of water glass, 20-25 parts of sodium hydroxide, 5-12 parts of sodium phosphate, 4-9 parts of polyethylene glycol, 100-120 parts of water and 1200-1250 parts of standard sand. Compared with the prior art, the phosphate and the surfactant are introduced into the slag fly ash alkali-activated composite gel system, and the two are comprehensively utilized to optimize the pore structure and the shrinkage compensation capability of the gel system, so that the bottleneck problem of serious shrinkage cracking of the alkali-activated gel material is obviously improved, and the alkali-activated gel material has excellent mechanical properties; and the average compressive strength of 28d is 65MPa, so that the method has remarkable economic benefits and application prospects.
本发明公开了一种矿渣粉煤灰基碱激发胶凝材料及其制备方法。本发明提供的碱激发胶凝材料以矿渣粉和粉煤灰作为主要灰体材料，以水玻璃‑磷酸钠作为复合激发剂，并引入聚乙二醇表面活性剂，其原材料的质量份配比为：矿渣粉300‑330份、粉煤灰120‑150份、水玻璃95‑105份、氢氧化钠20‑25份、磷酸钠5‑12份、聚乙二醇4‑9份、水100‑120份、标准砂1200‑1250份。与现有技术相比，本发明通过将磷酸盐和表面活性剂引入矿渣粉煤灰碱激发复合胶凝体系，综合利用两者优化凝胶体系孔隙结构和补偿收缩的能力，显著改善了碱激发胶凝材料收缩开裂严重的瓶颈问题且具备优良的力学性能，28d抗压强度均值为65MPa，具有显著的经济效益和应用前景。
Slag fly ash-based alkali-activated cementing material and preparation method thereof
一种矿渣粉煤灰基碱激发胶凝材料及其制备方法
FAN XIAOCHUN (author) / ZHANG YU (author) / WANG YANG (author) / GAO XU (author) / XU DONGSHENG (author) / ZHANG FENG (author) / XIE ZHUBING (author) / LIU ZHIGANG (author)
2022-11-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2020
Alkali-activated cementing material and preparation method thereof
| European Patent Office | 2024
Alkali-activated cementing material and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2024