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A platform for research: civil engineering, architecture and urbanism
Composite concrete admixture and preparation method thereof
The invention discloses a composite concrete admixture and a preparation method thereof, and belongs to the technical field of concrete admixtures, and the composite concrete admixture is prepared by mixing hydroxypropyl methyl cellulose, a lignosulfonate water reducing agent, a retarder, a surface anionic surfactant and a solvent, the use amounts of the components are as follows: 1-5 parts of the hydroxypropyl methyl cellulose, 20-30 parts of the lignosulfonate water reducing agent, 4-8 parts of the retarder, 0.5-0.8 part of the anionic surfactant and 50-70 parts of the solvent; the preparation method comprises the following steps: taking the hydroxypropyl methyl cellulose, the lignosulfonate water reducing agent and the retarder in parts by weight, adding into a container, mixing, adding the solvent, heating to 50-70 DEG C, cooling for later use, adding the anionic surfactant, and uniformly mixing to obtain the concrete admixture. The preparation method disclosed by the invention is simple and easy to operate, low in raw material cost, low in energy consumption and high in environmental protection performance, and the prepared concrete admixture is high in crack resistance, high in pressure resistance and excellent in comprehensive performance.
本发明公开了一种复合型混凝土外加剂及其制备方法，属于混凝土外加剂技术领域，复合型混凝土外加剂由羟丙基甲基纤维素、木质素磺酸盐减水剂、缓凝剂、表面阴离子表面活性剂以及溶剂混合而成，按重量份数计，各组分用量如下：羟丙基甲基纤维素1‑5份、木质素磺酸盐减水剂20‑30份、缓凝剂4‑8份、阴离子表面活性剂0.5‑0.8份以及溶剂50‑70份；按以上重量份数取羟丙基甲基纤维素、木质素磺酸盐减水剂和缓凝剂，并将其加入容器中混合，再加入溶剂加热至50‑70℃，冷却后备用，再加入阴离子表面活性剂混合均匀后得混凝土外加剂。本发明的制备方法简单易操作，原料成本低，耗能少，环保性能强，所制得的混凝土外加剂抗裂性能强，抗压能力强，综合性能优异。
Composite concrete admixture and preparation method thereof
The invention discloses a composite concrete admixture and a preparation method thereof, and belongs to the technical field of concrete admixtures, and the composite concrete admixture is prepared by mixing hydroxypropyl methyl cellulose, a lignosulfonate water reducing agent, a retarder, a surface anionic surfactant and a solvent, the use amounts of the components are as follows: 1-5 parts of the hydroxypropyl methyl cellulose, 20-30 parts of the lignosulfonate water reducing agent, 4-8 parts of the retarder, 0.5-0.8 part of the anionic surfactant and 50-70 parts of the solvent; the preparation method comprises the following steps: taking the hydroxypropyl methyl cellulose, the lignosulfonate water reducing agent and the retarder in parts by weight, adding into a container, mixing, adding the solvent, heating to 50-70 DEG C, cooling for later use, adding the anionic surfactant, and uniformly mixing to obtain the concrete admixture. The preparation method disclosed by the invention is simple and easy to operate, low in raw material cost, low in energy consumption and high in environmental protection performance, and the prepared concrete admixture is high in crack resistance, high in pressure resistance and excellent in comprehensive performance.
本发明公开了一种复合型混凝土外加剂及其制备方法，属于混凝土外加剂技术领域，复合型混凝土外加剂由羟丙基甲基纤维素、木质素磺酸盐减水剂、缓凝剂、表面阴离子表面活性剂以及溶剂混合而成，按重量份数计，各组分用量如下：羟丙基甲基纤维素1‑5份、木质素磺酸盐减水剂20‑30份、缓凝剂4‑8份、阴离子表面活性剂0.5‑0.8份以及溶剂50‑70份；按以上重量份数取羟丙基甲基纤维素、木质素磺酸盐减水剂和缓凝剂，并将其加入容器中混合，再加入溶剂加热至50‑70℃，冷却后备用，再加入阴离子表面活性剂混合均匀后得混凝土外加剂。本发明的制备方法简单易操作，原料成本低，耗能少，环保性能强，所制得的混凝土外加剂抗裂性能强，抗压能力强，综合性能优异。
Composite concrete admixture and preparation method thereof
一种复合型混凝土外加剂及其制备方法
KANG YANWU (author) / YANG YANWEI (author) / ZHANG HUA (author) / WANG YAHUI (author) / FAN XIA (author) / SUN LIANJIAO (author) / XU HUAIYING (author)
2023-07-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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