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A platform for research: civil engineering, architecture and urbanism
High-cold-resistance concrete additive and preparation method thereof
The invention discloses a high-cold-resistance concrete additive and a preparation method thereof, and belongs to the technical field of concrete admixtures. The additive is prepared from the following raw materials in percentage by weight: 5-10% of sodium dodecyl benzene sulfonate, 3-7% of a water reducing agent, 1-5% of sodium nitrite, 1-3% of ethylene glycol, 0.5-1.5% of sodium formate, 3-5% of a nano additive, 0.1-0.5% of a synergist and the balance of water, wherein the total amount is 100%. According to the high-cold-resistance concrete additive, the nano additive is added, the nano additive is a mixture of polymer microspheres and nano silicon dioxide wrapped by emulsion, the prepared high-cold-resistance concrete additive is low in doping amount and high in efficiency, the freezing resistance, the mechanical property and the durability of concrete are synchronously improved, and the market application prospect is wide.
本发明公开一种高抗寒混凝土添加剂及其制备方法，属于混凝土外加剂技术领域。本发明外加剂包括以下重量百分比的原料制备而成：十二烷基苯磺酸钠5‑10％、减水剂3‑7％、亚硝酸钠1‑5％、乙二醇1‑3％、甲酸钠0.5‑1.5％、纳米添加剂3‑5％、增效剂0.1‑0.5％，总量以100％计，余量为水。本发明添加纳米添加剂，纳米添加剂为聚合物微球和乳液包裹的纳米二氧化硅的混合物，所制备得到的高抗寒混凝土添加剂，掺量低，效率高，实现混凝土抗冻性能、力学性能以及耐久性的同步提升，市场应用前景广泛。
High-cold-resistance concrete additive and preparation method thereof
The invention discloses a high-cold-resistance concrete additive and a preparation method thereof, and belongs to the technical field of concrete admixtures. The additive is prepared from the following raw materials in percentage by weight: 5-10% of sodium dodecyl benzene sulfonate, 3-7% of a water reducing agent, 1-5% of sodium nitrite, 1-3% of ethylene glycol, 0.5-1.5% of sodium formate, 3-5% of a nano additive, 0.1-0.5% of a synergist and the balance of water, wherein the total amount is 100%. According to the high-cold-resistance concrete additive, the nano additive is added, the nano additive is a mixture of polymer microspheres and nano silicon dioxide wrapped by emulsion, the prepared high-cold-resistance concrete additive is low in doping amount and high in efficiency, the freezing resistance, the mechanical property and the durability of concrete are synchronously improved, and the market application prospect is wide.
本发明公开一种高抗寒混凝土添加剂及其制备方法，属于混凝土外加剂技术领域。本发明外加剂包括以下重量百分比的原料制备而成：十二烷基苯磺酸钠5‑10％、减水剂3‑7％、亚硝酸钠1‑5％、乙二醇1‑3％、甲酸钠0.5‑1.5％、纳米添加剂3‑5％、增效剂0.1‑0.5％，总量以100％计，余量为水。本发明添加纳米添加剂，纳米添加剂为聚合物微球和乳液包裹的纳米二氧化硅的混合物，所制备得到的高抗寒混凝土添加剂，掺量低，效率高，实现混凝土抗冻性能、力学性能以及耐久性的同步提升，市场应用前景广泛。
High-cold-resistance concrete additive and preparation method thereof
一种高抗寒混凝土添加剂及其制备方法
ZHU KESHEN (author) / YUAN YILIN (author) / WANG CHENGHE (author) / ZHAI JIE (author) / LI KAI (author) / GAO FENG (author) / REN HENGWEI (author) / CHU WEIHUA (author) / CHEN HAO (author) / SUN QINQING (author)
2023-06-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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