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A platform for research: civil engineering, architecture and urbanism
Composite dry-mixed mortar admixture and preparation method thereof
The invention relates to a composite dry-mixed mortar admixture, which comprises the following components in parts by weight: 100 parts of a flocculating agent, 180-220 parts of redispersible latex powder, 13-15 parts of whiskers, 45-55 parts of a water reducing agent, 1-2 parts of an air entraining agent, 10-15 parts of sodium hexametaphosphate, 8-10 parts of hydroxyethylidene diphosphonic acid,and 117-122 parts of a carrier. The invention also relates to a preparation method of the composite dry-mixed mortar admixture. The whiskers in the composite dry-mixed mortar admixture are helpful forimproving the sagging resistance of a dry-mixed mortar mixture and improving the tensile bonding strength of hardened plastering mortar; besides, the hydroxyethylidene diphosphonic acid has the effects of thickening, water retention and the like, and the phenomena of layering and bleeding of a dry-mixed mortar mixture can be effectively avoided; in addition, the sodium hexametaphosphate has better compatibility with a dry-mixed mortar cement system, and the setting time of a mortar mixture can be effectively prolonged.
本发明涉及一种复合型干混砂浆外加剂，包括如下重量份数的组分：絮凝剂100份、可再分散乳胶粉180‑220份、晶须13‑15份、减水剂45‑55份、引气剂1‑2份、六偏磷酸钠10‑15份、羟基亚乙基二膦酸8‑10份和载体117‑122份；还涉及一种复合型干混砂浆外加剂的制备方法。该复合型干混砂浆外加剂中晶须有助于改善干混砂浆拌合物的抗流挂性，提高抹灰砂浆硬化后的拉伸粘结强度；羟基亚乙基二膦酸具有增稠、保水等作用，可有效避免干混砂浆拌合物出现分层、泌水现象；六偏磷酸钠与干混砂浆水泥体系具有更好的相容性，可有效延长砂浆拌合物凝结时间。
Composite dry-mixed mortar admixture and preparation method thereof
The invention relates to a composite dry-mixed mortar admixture, which comprises the following components in parts by weight: 100 parts of a flocculating agent, 180-220 parts of redispersible latex powder, 13-15 parts of whiskers, 45-55 parts of a water reducing agent, 1-2 parts of an air entraining agent, 10-15 parts of sodium hexametaphosphate, 8-10 parts of hydroxyethylidene diphosphonic acid,and 117-122 parts of a carrier. The invention also relates to a preparation method of the composite dry-mixed mortar admixture. The whiskers in the composite dry-mixed mortar admixture are helpful forimproving the sagging resistance of a dry-mixed mortar mixture and improving the tensile bonding strength of hardened plastering mortar; besides, the hydroxyethylidene diphosphonic acid has the effects of thickening, water retention and the like, and the phenomena of layering and bleeding of a dry-mixed mortar mixture can be effectively avoided; in addition, the sodium hexametaphosphate has better compatibility with a dry-mixed mortar cement system, and the setting time of a mortar mixture can be effectively prolonged.
本发明涉及一种复合型干混砂浆外加剂，包括如下重量份数的组分：絮凝剂100份、可再分散乳胶粉180‑220份、晶须13‑15份、减水剂45‑55份、引气剂1‑2份、六偏磷酸钠10‑15份、羟基亚乙基二膦酸8‑10份和载体117‑122份；还涉及一种复合型干混砂浆外加剂的制备方法。该复合型干混砂浆外加剂中晶须有助于改善干混砂浆拌合物的抗流挂性，提高抹灰砂浆硬化后的拉伸粘结强度；羟基亚乙基二膦酸具有增稠、保水等作用，可有效避免干混砂浆拌合物出现分层、泌水现象；六偏磷酸钠与干混砂浆水泥体系具有更好的相容性，可有效延长砂浆拌合物凝结时间。
Composite dry-mixed mortar admixture and preparation method thereof
一种复合型干混砂浆外加剂及其制备方法
CHEN ZHONGWEI (author)
2020-11-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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