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Concrete based on mineral admixture and preparation method thereof
The invention discloses concrete based on a mineral admixture and a preparation method of the concrete. The concrete comprises the following raw materials in parts by weight: 60-80 parts of concrete waste, 100-150 parts of cement, 50-80 parts of reinforced fibers, 5-10 parts of a water reducing agent, 150-200 parts of sand and 120-150 parts of water. The preparation method comprises the following steps: dispersing graphene oxide in deionized water, adding gamma-aminopropyltriethoxysilane and 1-hydroxybenzotriazole, enabling carboxyl on the surface of the graphene oxide to be condensed with amino on the surface of the gamma-aminopropyltriethoxysilane to prepare pre-modified graphene, dispersing the pre-modified graphene in deionized water, and carrying out ultrasonic dispersion on the pre-modified graphene to obtain the graphene composite material. The preparation method comprises the following steps: adding nano silicon dioxide into the surface of the concrete, hydrolyzing siloxane on the surface, further grafting with hydroxyl on the surface of the nano silicon dioxide to prepare a reinforcing material, carrying out melt blending on the reinforcing material and glass powder, and carrying out wiredrawing treatment to prepare reinforced fibers, so that the concrete is not easy to crack in the use process by virtue of the reinforced fibers.
本发明公开了一种基于矿物掺合料的混凝土及其制备方法，该混凝土包括如下重量份原料：混凝土废料60‑80份、水泥100‑150份、增强纤维50‑80份、减水剂5‑10份、砂150‑200份、水120‑150份；将氧化石墨烯分散在去离子水中，加入γ‑氨丙基三乙氧基硅烷和1‑羟基苯并三唑，使得氧化石墨烯表面的羧基与γ‑氨丙基三乙氧基硅烷表面的氨基进行缩合，制得预改性石墨烯，将预改性石墨烯分散在去离子水中，使表面的硅氧烷发生水解，进而与纳米二氧化硅表面的羟基接枝，制得增强料，将增强料与玻璃粉进行熔融共混后，进行拉丝处理制得增强纤维，该增强纤维使得混凝土在使用过程中不易出现裂纹。
Concrete based on mineral admixture and preparation method thereof
The invention discloses concrete based on a mineral admixture and a preparation method of the concrete. The concrete comprises the following raw materials in parts by weight: 60-80 parts of concrete waste, 100-150 parts of cement, 50-80 parts of reinforced fibers, 5-10 parts of a water reducing agent, 150-200 parts of sand and 120-150 parts of water. The preparation method comprises the following steps: dispersing graphene oxide in deionized water, adding gamma-aminopropyltriethoxysilane and 1-hydroxybenzotriazole, enabling carboxyl on the surface of the graphene oxide to be condensed with amino on the surface of the gamma-aminopropyltriethoxysilane to prepare pre-modified graphene, dispersing the pre-modified graphene in deionized water, and carrying out ultrasonic dispersion on the pre-modified graphene to obtain the graphene composite material. The preparation method comprises the following steps: adding nano silicon dioxide into the surface of the concrete, hydrolyzing siloxane on the surface, further grafting with hydroxyl on the surface of the nano silicon dioxide to prepare a reinforcing material, carrying out melt blending on the reinforcing material and glass powder, and carrying out wiredrawing treatment to prepare reinforced fibers, so that the concrete is not easy to crack in the use process by virtue of the reinforced fibers.
本发明公开了一种基于矿物掺合料的混凝土及其制备方法，该混凝土包括如下重量份原料：混凝土废料60‑80份、水泥100‑150份、增强纤维50‑80份、减水剂5‑10份、砂150‑200份、水120‑150份；将氧化石墨烯分散在去离子水中，加入γ‑氨丙基三乙氧基硅烷和1‑羟基苯并三唑，使得氧化石墨烯表面的羧基与γ‑氨丙基三乙氧基硅烷表面的氨基进行缩合，制得预改性石墨烯，将预改性石墨烯分散在去离子水中，使表面的硅氧烷发生水解，进而与纳米二氧化硅表面的羟基接枝，制得增强料，将增强料与玻璃粉进行熔融共混后，进行拉丝处理制得增强纤维，该增强纤维使得混凝土在使用过程中不易出现裂纹。
Concrete based on mineral admixture and preparation method thereof
一种基于矿物掺合料的混凝土及其制备方法
LI YAN (author) / HUANG WEI (author) / JIANG YANYAN (author) / FANG YE (author)
2023-11-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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