Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-impermeability anti-crack concrete and preparation process thereof
The invention discloses high-impermeability anti-crack concrete and a preparation process thereof. The high-impermeability concrete is composed of the following raw materials in parts by weight: 100-120 parts of cement, 30-40 parts of fly ash, 35-50 parts of sand, 5-8 parts of a water reducing agent, 20-30 parts of a reinforced emulsion and 10-15 parts of ethylenediamine. The reinforced emulsion is prepared in the process of preparing the high-impermeability concrete; long-chain alkyl is grafted on the surface of a pre-modified carbon nanotube, and the long-chain alkyl has a good hydrophobic effect, so that the concrete is not prone to water seepage; meanwhile, the reinforced emulsion and ethylenediamine are added, and modified fibers in the reinforced emulsion are dispersed in the concrete, and under the action of ethylenediamine, the epoxy group on the surface of the modified fibers is subjected to ring opening and is fixed with the concrete, so that the concrete is not easy to crack, the service life of the concrete is prolonged, and the impermeability effect is better.
本发明公开了一种高抗渗抗裂混凝土及其制备工艺，该高抗渗混凝土包括如下重量份原料：水泥100‑120份、粉煤灰30‑40份、沙子35‑50份、减水剂5‑8份、增强乳液20‑30份、乙二胺10‑15份；在制备高抗渗混凝土的过程中制备了一种增强乳液，通过在预改性碳纳米管表面接枝有长链烷基，长链烷基具有很好的疏水作用，使得混凝土不易渗水，同时加入增强乳液和乙二胺，增强乳液中的改性纤维分散在混凝土中，并且在乙二胺的作用下改性纤维表面环氧基发生开环与混凝土固定，使得混凝土不易发生开裂，进而使得混凝土的使用寿命增长，且抗渗透效果更好。
High-impermeability anti-crack concrete and preparation process thereof
The invention discloses high-impermeability anti-crack concrete and a preparation process thereof. The high-impermeability concrete is composed of the following raw materials in parts by weight: 100-120 parts of cement, 30-40 parts of fly ash, 35-50 parts of sand, 5-8 parts of a water reducing agent, 20-30 parts of a reinforced emulsion and 10-15 parts of ethylenediamine. The reinforced emulsion is prepared in the process of preparing the high-impermeability concrete; long-chain alkyl is grafted on the surface of a pre-modified carbon nanotube, and the long-chain alkyl has a good hydrophobic effect, so that the concrete is not prone to water seepage; meanwhile, the reinforced emulsion and ethylenediamine are added, and modified fibers in the reinforced emulsion are dispersed in the concrete, and under the action of ethylenediamine, the epoxy group on the surface of the modified fibers is subjected to ring opening and is fixed with the concrete, so that the concrete is not easy to crack, the service life of the concrete is prolonged, and the impermeability effect is better.
本发明公开了一种高抗渗抗裂混凝土及其制备工艺，该高抗渗混凝土包括如下重量份原料：水泥100‑120份、粉煤灰30‑40份、沙子35‑50份、减水剂5‑8份、增强乳液20‑30份、乙二胺10‑15份；在制备高抗渗混凝土的过程中制备了一种增强乳液，通过在预改性碳纳米管表面接枝有长链烷基，长链烷基具有很好的疏水作用，使得混凝土不易渗水，同时加入增强乳液和乙二胺，增强乳液中的改性纤维分散在混凝土中，并且在乙二胺的作用下改性纤维表面环氧基发生开环与混凝土固定，使得混凝土不易发生开裂，进而使得混凝土的使用寿命增长，且抗渗透效果更好。
High-impermeability anti-crack concrete and preparation process thereof
一种高抗渗抗裂混凝土及其制备工艺
HUANG WEI (Autor:in) / JIANG YANYAN (Autor:in) / WENG WEI (Autor:in) / LI YAN (Autor:in) / SUN WEIMING (Autor:in) / HE JIANGHUA (Autor:in) / FANG YE (Autor:in)
20.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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