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Super-early-strength high-efficiency water reducing agent and preparation method thereof
The invention discloses a super-early-strength high-efficiency water reducing agent which is composed of early-strength coagulation accelerating components, a water reducing component and auxiliary components, and the super-early-strength high-efficiency water reducing agent is prepared by mixing the components and then stirring and fully dissolving the components at a certain temperature. The water reducing agent comprises, by weight, the early-strength coagulation accelerating components which comprise 7.5 percent to 15.0 percent of aluminum sulfate, 0.5 percent to 3.0 percent of sodium sulfate, 0.5 percent to 1.8 percent of sodium fluoride, 2.5 percent to 7.5 percent of calcium formate and 1.5 percent to 3.5 percent of N-methyldiethanolamine; the water reducing component that is 75.0%-85.0% of a water reducing agent; and the auxiliary components comprising 0.02%-0.15% of a defoaming agent and 0.1%-0.2% of a rheology modifier. No chlorine salt component harmful to steel bar corrosionis added; the aluminum sulfate, the sodium sulfate and the sodium fluoride are adopted for adjusting the setting time, the early strength of the concrete is improved through the combination of the calcium formate and the N-methyldiethanolamine, and the later strength is not reduced. The super-early-strength high-efficiency water reducing agent comprises the early-strength coagulation acceleratingcomponents, the water reducing enhancing component and the auxiliary components. The super-early-strength high-efficiency water reducing agent is suitable for concrete engineering and prefabricated parts with early strength requirements. The preparation method is simple, low in cost and wide in application market.
本发明公开了一种超早强高效减水剂，该超早强高效减水剂由早强促凝组分、减水组分、助剂组分组成，将各组分混合到后在一定温度下经搅拌充分溶解后即可；各组分按重量百分比组成为：早强促凝组分：硫酸铝7.5%～15.0%，硫酸钠0.5%～3.0%，氟化钠0.5%～1.8%,甲酸钙2.5%～7.5%，N‑甲基二乙醇胺1.5%～3.5%；减水组分：减水剂75.0%～85.0%；助剂组分：消泡剂0.02%～0.15%，流变改性剂0.1%～0.2%；本发明不添加有害钢筋腐蚀的氯盐成分，采用硫酸铝、硫酸钠、氟化钠来调节凝结时间，甲酸钙和N‑甲基二乙醇胺组合提高混凝土早期强度，且后期强度不倒缩。本发明包含早强促凝组分、减水增强组分及其他助剂组分。适用于有早强要求的混凝土工程及预制构件。制备方法简单，成本低廉，应用市场广。
Super-early-strength high-efficiency water reducing agent and preparation method thereof
The invention discloses a super-early-strength high-efficiency water reducing agent which is composed of early-strength coagulation accelerating components, a water reducing component and auxiliary components, and the super-early-strength high-efficiency water reducing agent is prepared by mixing the components and then stirring and fully dissolving the components at a certain temperature. The water reducing agent comprises, by weight, the early-strength coagulation accelerating components which comprise 7.5 percent to 15.0 percent of aluminum sulfate, 0.5 percent to 3.0 percent of sodium sulfate, 0.5 percent to 1.8 percent of sodium fluoride, 2.5 percent to 7.5 percent of calcium formate and 1.5 percent to 3.5 percent of N-methyldiethanolamine; the water reducing component that is 75.0%-85.0% of a water reducing agent; and the auxiliary components comprising 0.02%-0.15% of a defoaming agent and 0.1%-0.2% of a rheology modifier. No chlorine salt component harmful to steel bar corrosionis added; the aluminum sulfate, the sodium sulfate and the sodium fluoride are adopted for adjusting the setting time, the early strength of the concrete is improved through the combination of the calcium formate and the N-methyldiethanolamine, and the later strength is not reduced. The super-early-strength high-efficiency water reducing agent comprises the early-strength coagulation acceleratingcomponents, the water reducing enhancing component and the auxiliary components. The super-early-strength high-efficiency water reducing agent is suitable for concrete engineering and prefabricated parts with early strength requirements. The preparation method is simple, low in cost and wide in application market.
本发明公开了一种超早强高效减水剂，该超早强高效减水剂由早强促凝组分、减水组分、助剂组分组成，将各组分混合到后在一定温度下经搅拌充分溶解后即可；各组分按重量百分比组成为：早强促凝组分：硫酸铝7.5%～15.0%，硫酸钠0.5%～3.0%，氟化钠0.5%～1.8%,甲酸钙2.5%～7.5%，N‑甲基二乙醇胺1.5%～3.5%；减水组分：减水剂75.0%～85.0%；助剂组分：消泡剂0.02%～0.15%，流变改性剂0.1%～0.2%；本发明不添加有害钢筋腐蚀的氯盐成分，采用硫酸铝、硫酸钠、氟化钠来调节凝结时间，甲酸钙和N‑甲基二乙醇胺组合提高混凝土早期强度，且后期强度不倒缩。本发明包含早强促凝组分、减水增强组分及其他助剂组分。适用于有早强要求的混凝土工程及预制构件。制备方法简单，成本低廉，应用市场广。
Super-early-strength high-efficiency water reducing agent and preparation method thereof
一种超早强高效减水剂及其制备方法
WANG ZHENGWEI (author) / JIN JIANGUO (author) / SHEN QIANG (author)
2020-09-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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