A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Additive for rock-fill concrete production
The invention relates to the field of concrete admixtures, in particular to a synthetic method of an admixture for rockfill concrete production. The admixture for rock-fill concrete production is prepared from the following components in parts by weight: 300-380 parts of methyl allyl polyoxyethylene ether; 3-47 parts of acrylic acid; 1.0 to 55 parts of hydroxyethyl acrylate; 1.0 to 15 parts of acrylamide; 5 to 40 parts of 2-acrylamide-2-methallyl sulfonic acid; 5 to 20 parts of dimethyl diallyl ammonium chloride; 1-8 parts of hydrogen peroxide; 0.2 to 2.0 parts of a reducing agent; 0.5 to 2.6 parts of mercaptopropionic acid; and 400 to 641.6 parts of deionized water. The admixture for rockfill concrete production is excellent in performance, the use amount of a cementing material can be reduced, the problem that an existing admixture is poor in adaptability to rockfill concrete and gravel is solved, the admixture has good water reducing performance and plasticity maintaining performance, the use amount of the water reducing agent can be reduced during compounding, and a mixture is good in performance, free of bleeding and free of bottom grabbing; the water reducing agent has certain water reducing property, the use amount of the water reducing agent is reduced when the water reducing agent is compounded, and the use effect is good; the consumption is small and the cost is saved; and the method is environment-friendly.
本发明涉及混凝土外加剂领域，具体涉及一种用于堆石混凝土生产用外加剂合成方法。本申请堆石混凝土生产用外加剂包含以下重量组分制备：甲基烯丙基聚氧乙烯醚300‑380份；丙烯酸3‑47份；丙烯酸羟乙酯1.0‑55份；丙烯酰胺1.0‑15份；2‑丙烯酰胺‑2‑甲基丙烯磺酸5‑40份；二甲基二烯丙基氯化铵5‑20份；双氧水1‑8份；还原剂0.2‑2.0份；巯基丙酸0.5‑2.6份；去离子水400‑641.6份。本发明堆石混凝土生产用外加剂性能优良，可减少胶凝材料用量，改善了现有的外加剂与堆石混凝土以及砂石适应性差的问题，具有良好的减水性和保塑性能，在进行复配时可降低减水剂的用量，拌合物性能良好，不泌水、不抓底；具有一定的减水性，在复配使用时降低了减水剂的用量，使用效果好；用量少，节约成本；对环境友好。
Additive for rock-fill concrete production
The invention relates to the field of concrete admixtures, in particular to a synthetic method of an admixture for rockfill concrete production. The admixture for rock-fill concrete production is prepared from the following components in parts by weight: 300-380 parts of methyl allyl polyoxyethylene ether; 3-47 parts of acrylic acid; 1.0 to 55 parts of hydroxyethyl acrylate; 1.0 to 15 parts of acrylamide; 5 to 40 parts of 2-acrylamide-2-methallyl sulfonic acid; 5 to 20 parts of dimethyl diallyl ammonium chloride; 1-8 parts of hydrogen peroxide; 0.2 to 2.0 parts of a reducing agent; 0.5 to 2.6 parts of mercaptopropionic acid; and 400 to 641.6 parts of deionized water. The admixture for rockfill concrete production is excellent in performance, the use amount of a cementing material can be reduced, the problem that an existing admixture is poor in adaptability to rockfill concrete and gravel is solved, the admixture has good water reducing performance and plasticity maintaining performance, the use amount of the water reducing agent can be reduced during compounding, and a mixture is good in performance, free of bleeding and free of bottom grabbing; the water reducing agent has certain water reducing property, the use amount of the water reducing agent is reduced when the water reducing agent is compounded, and the use effect is good; the consumption is small and the cost is saved; and the method is environment-friendly.
本发明涉及混凝土外加剂领域，具体涉及一种用于堆石混凝土生产用外加剂合成方法。本申请堆石混凝土生产用外加剂包含以下重量组分制备：甲基烯丙基聚氧乙烯醚300‑380份；丙烯酸3‑47份；丙烯酸羟乙酯1.0‑55份；丙烯酰胺1.0‑15份；2‑丙烯酰胺‑2‑甲基丙烯磺酸5‑40份；二甲基二烯丙基氯化铵5‑20份；双氧水1‑8份；还原剂0.2‑2.0份；巯基丙酸0.5‑2.6份；去离子水400‑641.6份。本发明堆石混凝土生产用外加剂性能优良，可减少胶凝材料用量，改善了现有的外加剂与堆石混凝土以及砂石适应性差的问题，具有良好的减水性和保塑性能，在进行复配时可降低减水剂的用量，拌合物性能良好，不泌水、不抓底；具有一定的减水性，在复配使用时降低了减水剂的用量，使用效果好；用量少，节约成本；对环境友好。
Additive for rock-fill concrete production
一种用于堆石混凝土生产用外加剂
BI ZHONGMING (author) / QIAO ZHICHAO (author) / HU JUNXU (author) / DING LIN (author) / WAN PENG (author) / WANG ZHUJUN (author) / XIANG ZHI (author) / ZHOU QIJUN (author) / WANG TENGFEI (author) / LUO XIN (author)
2022-05-27
Patent
Electronic Resource
Chinese
Additive for rock-fill concrete engineering and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2024