Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Geopolymer concrete mix proportion for improving mechanical property of fiber reinforced concrete and preparation method of geopolymer concrete mix proportion
The invention discloses a geopolymer concrete mix proportion for enhancing the mechanical property of concrete through fibers and a preparation method of the geopolymer concrete mix proportion, and belongs to the technical field of geopolymer concrete. The geopolymer concrete comprises the following materials: 70.1-93.6 Kg/m < 3 > of cement; coal ash is 421.4 to 463.5 Kg/m < 3 >; sand is 573.2 to 623.9 kg/m < 3 >; gravels are 998.6 to 1021.6 Kg/m < 3 >; 33.95 to 52.36 Kg/m < 3 > of sodium hydroxide; water glass is 217.5 to 236.8 kg/m < 3 >; and the polypropylene fiber is doped in a volume percentage of 0.1%-0.2% in an external doping manner, and the volume percentage of the polypropylene fiber is 30.28-41.35 Kg/m < 3 >. The materials are uniformly stirred by a concrete stirrer according to the weight ratio. The invention further relates to a preparation method of the geopolymer concrete, the gravel, the sand, the cement, the fly ash, the polypropylene fiber and the alkali-activated solution are sequentially added, and the materials are uniformly mixed after being discharged by a stirrer. According to the invention, most cement is replaced by fly ash by using an alkali excitation technology, so that the utilization of solid waste materials is realized, carbon emission is reduced, and the polypropylene fiber is doped, so that the mechanical properties of geopolymer concrete can be enhanced, the toughness of the geopolymer concrete can be enhanced, and phenomena such as cracking of geopolymer concrete floors can be reduced.
本发明公布了一种纤维增强混凝土力学性能的地聚物混凝土配合比及其制备方法，属于地聚物混凝土技术领域。这种地聚物混凝土的材料包括：水泥70.1‑93.6Kg/m3；粉煤灰421.4‑463.5Kg/m3；砂573.2‑623.9Kg/m3；碎石998.6‑1021.6Kg/m3；氢氧化钠33.95‑52.36Kg/m3；水玻璃217.5‑236.8Kg/m3；水30.28‑41.35Kg/m3聚丙烯纤维以外掺的方式掺入体积百分率的0.1％‑0.2％。按照上述材料的重量比例，通过混凝土搅拌机均匀搅拌而成。还涉及了一种上述地聚物混凝土的制备方法，加料顺序依次为碎石、砂、水泥、粉煤灰、聚丙烯纤维、碱激发溶液，经搅拌机出来后再拌合均匀。本发明利用碱激发技术以粉煤灰替代大部分水泥，不仅实现了固废材料的利用、降低了碳排放，掺入聚丙烯纤维还能够增强地聚物混凝土的力学性能，增强地聚物混凝土的韧性，减轻地聚物混凝土楼板开裂等现象。
Geopolymer concrete mix proportion for improving mechanical property of fiber reinforced concrete and preparation method of geopolymer concrete mix proportion
The invention discloses a geopolymer concrete mix proportion for enhancing the mechanical property of concrete through fibers and a preparation method of the geopolymer concrete mix proportion, and belongs to the technical field of geopolymer concrete. The geopolymer concrete comprises the following materials: 70.1-93.6 Kg/m < 3 > of cement; coal ash is 421.4 to 463.5 Kg/m < 3 >; sand is 573.2 to 623.9 kg/m < 3 >; gravels are 998.6 to 1021.6 Kg/m < 3 >; 33.95 to 52.36 Kg/m < 3 > of sodium hydroxide; water glass is 217.5 to 236.8 kg/m < 3 >; and the polypropylene fiber is doped in a volume percentage of 0.1%-0.2% in an external doping manner, and the volume percentage of the polypropylene fiber is 30.28-41.35 Kg/m < 3 >. The materials are uniformly stirred by a concrete stirrer according to the weight ratio. The invention further relates to a preparation method of the geopolymer concrete, the gravel, the sand, the cement, the fly ash, the polypropylene fiber and the alkali-activated solution are sequentially added, and the materials are uniformly mixed after being discharged by a stirrer. According to the invention, most cement is replaced by fly ash by using an alkali excitation technology, so that the utilization of solid waste materials is realized, carbon emission is reduced, and the polypropylene fiber is doped, so that the mechanical properties of geopolymer concrete can be enhanced, the toughness of the geopolymer concrete can be enhanced, and phenomena such as cracking of geopolymer concrete floors can be reduced.
本发明公布了一种纤维增强混凝土力学性能的地聚物混凝土配合比及其制备方法，属于地聚物混凝土技术领域。这种地聚物混凝土的材料包括：水泥70.1‑93.6Kg/m3；粉煤灰421.4‑463.5Kg/m3；砂573.2‑623.9Kg/m3；碎石998.6‑1021.6Kg/m3；氢氧化钠33.95‑52.36Kg/m3；水玻璃217.5‑236.8Kg/m3；水30.28‑41.35Kg/m3聚丙烯纤维以外掺的方式掺入体积百分率的0.1％‑0.2％。按照上述材料的重量比例，通过混凝土搅拌机均匀搅拌而成。还涉及了一种上述地聚物混凝土的制备方法，加料顺序依次为碎石、砂、水泥、粉煤灰、聚丙烯纤维、碱激发溶液，经搅拌机出来后再拌合均匀。本发明利用碱激发技术以粉煤灰替代大部分水泥，不仅实现了固废材料的利用、降低了碳排放，掺入聚丙烯纤维还能够增强地聚物混凝土的力学性能，增强地聚物混凝土的韧性，减轻地聚物混凝土楼板开裂等现象。
Geopolymer concrete mix proportion for improving mechanical property of fiber reinforced concrete and preparation method of geopolymer concrete mix proportion
一种纤维增强混凝土力学性能的地聚物混凝土配合比及其制备方法
SUN QINGWEI (Autor:in) / TAN QICHENG (Autor:in)
25.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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