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Special admixture for fair-faced concrete and preparation method thereof
The invention discloses a special admixture for fair-faced concrete and a preparation method thereof. The special admixture comprises the following raw materials: 30%-35% of a water reducing agent, 0.02%-0.05% of an air entraining agent, 0.04%-0.08% of an antifoaming agent, 1.8%-2.5% of a retarder, 1%-3% of a corrosion inhibitor, 2%-4% of a waterproof enhancer, 1%-2% of a shrinkage reducing agentand 55%-60% of water. According to the special admixture for the fair-faced concrete, cinnamamide is introduced into a molecular structure design, so the sensitivity of the water reducing agent to inorganic salt is reduced, the stretching conformation of the water reducing agent is kept, and a good early strength effect is achieved; the raw materials of the special admixture are easy to obtain, and the process of the method is simple; and the preparation operation of the special water reducing agent is simple, convenient and safe and is easy for large-scale production, so further control on the cost of the fair-faced concrete admixture can be realized.
本发明公开了一种清水混凝土专用外加剂及其制备方法，所述外加剂包括以下组份的原材料组成：减水剂30%~35%、引气剂0.02%~0.05%、消泡剂0.04%~0.08%、缓凝剂1.8%~2.5%、阻锈剂1%~3%、防水增强剂2%~4%、减缩剂1%~2%和水55%~60%，本发明制备的清水混凝土专用减水剂，在分子结构设计上引入肉桂酰胺，降低了减水剂对无机盐的敏感性，保持其伸展构象，同时具有良好的早强效果，本发明的清水混凝土外加剂，原料易得，工艺简单，其中专用减水剂的制备操作简便安全，易规模生产化，可实现对清水混凝土外加剂成本的进一步控制。
Special admixture for fair-faced concrete and preparation method thereof
The invention discloses a special admixture for fair-faced concrete and a preparation method thereof. The special admixture comprises the following raw materials: 30%-35% of a water reducing agent, 0.02%-0.05% of an air entraining agent, 0.04%-0.08% of an antifoaming agent, 1.8%-2.5% of a retarder, 1%-3% of a corrosion inhibitor, 2%-4% of a waterproof enhancer, 1%-2% of a shrinkage reducing agentand 55%-60% of water. According to the special admixture for the fair-faced concrete, cinnamamide is introduced into a molecular structure design, so the sensitivity of the water reducing agent to inorganic salt is reduced, the stretching conformation of the water reducing agent is kept, and a good early strength effect is achieved; the raw materials of the special admixture are easy to obtain, and the process of the method is simple; and the preparation operation of the special water reducing agent is simple, convenient and safe and is easy for large-scale production, so further control on the cost of the fair-faced concrete admixture can be realized.
本发明公开了一种清水混凝土专用外加剂及其制备方法，所述外加剂包括以下组份的原材料组成：减水剂30%~35%、引气剂0.02%~0.05%、消泡剂0.04%~0.08%、缓凝剂1.8%~2.5%、阻锈剂1%~3%、防水增强剂2%~4%、减缩剂1%~2%和水55%~60%，本发明制备的清水混凝土专用减水剂，在分子结构设计上引入肉桂酰胺，降低了减水剂对无机盐的敏感性，保持其伸展构象，同时具有良好的早强效果，本发明的清水混凝土外加剂，原料易得，工艺简单，其中专用减水剂的制备操作简便安全，易规模生产化，可实现对清水混凝土外加剂成本的进一步控制。
Special admixture for fair-faced concrete and preparation method thereof
一种清水混凝土专用外加剂及其制备方法
DENG NI (author) / CHEN JIE (author) / FANG SHICHANG (author) / TIAN YINGBING (author)
2021-03-30
Patent
Electronic Resource
Chinese
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