Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Impermeable and anti-cracking concrete based on elastic hydrogel composite fibers and preparation method of impervious and anti-cracking concrete
The invention relates to the technical field of concrete, in particular to impermeable and anti-cracking concrete based on elastic hydrogel composite fiber and a preparation method thereof, and the impermeable and anti-cracking concrete comprises the following components in parts by weight: 100-120 parts of cement, 30-50 parts of fly ash, 10-20 parts of silica fume, 20-30 parts of mineral powder, 100-150 parts of fine stone, 5-20 parts of elastic hydrogel composite fiber, 2-5 parts of a water reducing agent and 30-60 parts of water. The elastic hydrogel composite fibers are composite fibers composed of elastic hydrogel fibers and bacterial cellulose. The toughness and crack resistance of the concrete are improved by utilizing the elasticity of the elastic hydrogel fiber, the impermeability of the concrete is improved by utilizing the water absorption expansion characteristic of the hydrogel, and meanwhile, the fiber strength can be improved by in-situ growth crosslinking of the nano-scale bacterial cellulose in a porous structure, so that the reinforcing effect on the concrete is improved, and the anti-cracking performance of the concrete is improved. Finally, the concrete with good anti-seepage and anti-cracking performance and high strength is obtained.
本发明涉及混凝土技术领域，具体为一种基于弹性水凝胶复合纤维的抗渗防裂混凝土及其制备方法，按重量份包括：水泥100‑120份、粉煤灰30‑50份、硅灰10‑20份、矿粉20‑30份、细石100‑150份、弹性水凝胶复合纤维5‑20份、减水剂2‑5份和水30‑60份；所述弹性水凝胶复合纤维为弹性水凝胶纤维与细菌纤维素组成的复合纤维。本发明利用弹性水凝胶纤维的弹性提高混凝土韧性和抗裂性能，利用水凝胶的吸水膨胀特性提高混凝土的抗渗性能，与此同时，纳米级细菌纤维素在多孔结构中的原位生长交联可提高纤维强度，进而提高对混凝土的增强作用，最终得到抗渗防裂性能好，强度高的混凝土。
Impermeable and anti-cracking concrete based on elastic hydrogel composite fibers and preparation method of impervious and anti-cracking concrete
The invention relates to the technical field of concrete, in particular to impermeable and anti-cracking concrete based on elastic hydrogel composite fiber and a preparation method thereof, and the impermeable and anti-cracking concrete comprises the following components in parts by weight: 100-120 parts of cement, 30-50 parts of fly ash, 10-20 parts of silica fume, 20-30 parts of mineral powder, 100-150 parts of fine stone, 5-20 parts of elastic hydrogel composite fiber, 2-5 parts of a water reducing agent and 30-60 parts of water. The elastic hydrogel composite fibers are composite fibers composed of elastic hydrogel fibers and bacterial cellulose. The toughness and crack resistance of the concrete are improved by utilizing the elasticity of the elastic hydrogel fiber, the impermeability of the concrete is improved by utilizing the water absorption expansion characteristic of the hydrogel, and meanwhile, the fiber strength can be improved by in-situ growth crosslinking of the nano-scale bacterial cellulose in a porous structure, so that the reinforcing effect on the concrete is improved, and the anti-cracking performance of the concrete is improved. Finally, the concrete with good anti-seepage and anti-cracking performance and high strength is obtained.
本发明涉及混凝土技术领域，具体为一种基于弹性水凝胶复合纤维的抗渗防裂混凝土及其制备方法，按重量份包括：水泥100‑120份、粉煤灰30‑50份、硅灰10‑20份、矿粉20‑30份、细石100‑150份、弹性水凝胶复合纤维5‑20份、减水剂2‑5份和水30‑60份；所述弹性水凝胶复合纤维为弹性水凝胶纤维与细菌纤维素组成的复合纤维。本发明利用弹性水凝胶纤维的弹性提高混凝土韧性和抗裂性能，利用水凝胶的吸水膨胀特性提高混凝土的抗渗性能，与此同时，纳米级细菌纤维素在多孔结构中的原位生长交联可提高纤维强度，进而提高对混凝土的增强作用，最终得到抗渗防裂性能好，强度高的混凝土。
Impermeable and anti-cracking concrete based on elastic hydrogel composite fibers and preparation method of impervious and anti-cracking concrete
一种基于弹性水凝胶复合纤维的抗渗防裂混凝土及其制备方法
WANG WUWEI (Autor:in) / SHI ZHUMING (Autor:in)
05.03.2024
Patent
Elektronische Ressource
Chinesisch
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