Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete mix proportion for modifying fracture performance of geopolymer concrete by adopting nano SiO2 and preparation method
The invention discloses a concrete mix proportion for modifying the fracture performance of geopolymer concrete by using nano SiO2 and a preparation method, and relates to a concrete mix proportion for modifying the fracture performance of geopolymer concrete by using nano SiO2, which comprises the following steps: weighing the following materials by weight, and uniformly stirring by using a stirrer, the weight of the demoulded geopolymer concrete is about 2235-2433 Kg/m < 3 >, and each cubic meter of the demoulded geopolymer concrete comprises 69.3-92.5 Kg/m < 3 > of cement; 419.4 to 452.3 Kg/m < 3 > of fly ash; sand is 582.2 to 613.9 kg/m < 3 >; gravels are 998.6 to 1031.6 Kg/m < 3 >; 215.5 to 246.5 kg/m < 3 > of water glass; 32.6-56.8 Kg/m < 3 > of sodium hydroxide; 0-7.88 Kg/m < 3 > of nano SiO2 is doped in a manner of replacing a cementing material by equal mass. The invention further discloses a preparation method of the geopolymer concrete, the sand, the broken stone, the fly ash, the cement, the alkali-activated solution and the nano dispersion liquid are sequentially added, and finally the materials are uniformly mixed in a stirrer and put into a mold. The brittleness of geopolymer concrete can be improved, the fracture performance of the geopolymer concrete is improved, and application of the geopolymer concrete in the field of road traffic becomes possible.
本发明公开了一种采用纳米SiO2改性地聚物混凝土断裂性能的混凝土配合比及制备方法，本发明涉及一种采用纳米SiO2改性地聚物混凝土断裂性能的混凝土配合比，按重量称取以下各种材料，使用搅拌机均匀搅拌而成，脱模后地聚物混凝土约重2235‑2433Kg/m3，每立方米包括：水泥69.3‑92.5Kg/m3；粉煤灰419.4‑452.3Kg/m3；砂582.2‑613.9Kg/m3；碎石998.6‑1031.6Kg/m3；水玻璃215.5‑246.5Kg/m3；氢氧化钠32.6‑56.8Kg/m3；纳米SiO2以等质量取代胶凝材料的方式掺入0‑7.88Kg/m3。还公开一种上述地聚物混凝土的制备方法，加料顺序依次为砂、碎石、粉煤灰、水泥、碱激发溶液、纳米分散液，最后在搅拌机内拌合均匀装模。本发明能够改善地聚物混凝土的脆性，提高其断裂性能，使其在公路交通领域的应用成为可能。
Concrete mix proportion for modifying fracture performance of geopolymer concrete by adopting nano SiO2 and preparation method
The invention discloses a concrete mix proportion for modifying the fracture performance of geopolymer concrete by using nano SiO2 and a preparation method, and relates to a concrete mix proportion for modifying the fracture performance of geopolymer concrete by using nano SiO2, which comprises the following steps: weighing the following materials by weight, and uniformly stirring by using a stirrer, the weight of the demoulded geopolymer concrete is about 2235-2433 Kg/m < 3 >, and each cubic meter of the demoulded geopolymer concrete comprises 69.3-92.5 Kg/m < 3 > of cement; 419.4 to 452.3 Kg/m < 3 > of fly ash; sand is 582.2 to 613.9 kg/m < 3 >; gravels are 998.6 to 1031.6 Kg/m < 3 >; 215.5 to 246.5 kg/m < 3 > of water glass; 32.6-56.8 Kg/m < 3 > of sodium hydroxide; 0-7.88 Kg/m < 3 > of nano SiO2 is doped in a manner of replacing a cementing material by equal mass. The invention further discloses a preparation method of the geopolymer concrete, the sand, the broken stone, the fly ash, the cement, the alkali-activated solution and the nano dispersion liquid are sequentially added, and finally the materials are uniformly mixed in a stirrer and put into a mold. The brittleness of geopolymer concrete can be improved, the fracture performance of the geopolymer concrete is improved, and application of the geopolymer concrete in the field of road traffic becomes possible.
本发明公开了一种采用纳米SiO2改性地聚物混凝土断裂性能的混凝土配合比及制备方法，本发明涉及一种采用纳米SiO2改性地聚物混凝土断裂性能的混凝土配合比，按重量称取以下各种材料，使用搅拌机均匀搅拌而成，脱模后地聚物混凝土约重2235‑2433Kg/m3，每立方米包括：水泥69.3‑92.5Kg/m3；粉煤灰419.4‑452.3Kg/m3；砂582.2‑613.9Kg/m3；碎石998.6‑1031.6Kg/m3；水玻璃215.5‑246.5Kg/m3；氢氧化钠32.6‑56.8Kg/m3；纳米SiO2以等质量取代胶凝材料的方式掺入0‑7.88Kg/m3。还公开一种上述地聚物混凝土的制备方法，加料顺序依次为砂、碎石、粉煤灰、水泥、碱激发溶液、纳米分散液，最后在搅拌机内拌合均匀装模。本发明能够改善地聚物混凝土的脆性，提高其断裂性能，使其在公路交通领域的应用成为可能。
Concrete mix proportion for modifying fracture performance of geopolymer concrete by adopting nano SiO2 and preparation method
一种采用纳米SiO2改性地聚物混凝土断裂性能的混凝土配合比及制备方法
SUN QINGWEI (Autor:in) / DING HAOSHEN (Autor:in) / BAN XINYU (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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