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Concrete mortar anti-cracking additive and preparation method thereof
The invention discloses a concrete mortar anti-cracking admixture and a preparation method thereof, and relates to the technical field of admixtures. 40-50 parts of an ester type polycarboxylate superplasticizer, 15-25 parts of modified pyrophyllite powder, 10-20 parts of an admixture, 8-12 parts of sodium stearate, 5-9 parts of diethanol amine, 1-3 parts of methylcellulose, 0.3-0.5 part of a surfactant, 0.1-0.5 part of an expanding agent, 0.1-0.3 part of an antifreezing agent, 0.1-0.3 part of an air entraining agent and 25-45 parts of deionized water. The toughness and strength of the concrete mortar can be effectively improved, and meanwhile, the concrete mortar has the effects of resisting freezing, compensating shrinkage and reducing the bleeding rate. The concrete mortar integrates water resistance, seepage resistance, crack resistance and compression resistance, can solve the problem that concrete mortar is easy to crack and shrink, improves the durability of concrete, and is simple in preparation process, convenient to operate, relatively low in production cost, relatively short in production period and suitable for large-scale production.
本发明公开了一种混凝土砂浆抗裂外加剂及其制备方法，涉及外加剂技术领域，所述外加剂按重量份包括以下组分：酯型聚羧酸减水剂40～50份、改性叶腊石粉15～25份、掺合料10～20份、硬脂酸钠8～12份、二乙醇胺5～9份、甲基纤维素1～3份、表面活性剂0.3～0.5份、膨胀剂0.1～0.5份、防冻剂0.1～0.3份、引气剂0.1～0.3份和去离子水25～45份。本发明能够有效改善混凝土砂浆的韧性及强度，同时，具有抗冻、补偿收缩，减少泌水率的作用；本发明产品集防水、抗渗、抗裂、抗压于一体，能够解决混凝土砂浆易开裂、收缩的问题，提高了混凝土的耐久性，且本发明制备工艺简单，操作便利，生产成本较低，生产周期较短，适宜大规模生产。
Concrete mortar anti-cracking additive and preparation method thereof
The invention discloses a concrete mortar anti-cracking admixture and a preparation method thereof, and relates to the technical field of admixtures. 40-50 parts of an ester type polycarboxylate superplasticizer, 15-25 parts of modified pyrophyllite powder, 10-20 parts of an admixture, 8-12 parts of sodium stearate, 5-9 parts of diethanol amine, 1-3 parts of methylcellulose, 0.3-0.5 part of a surfactant, 0.1-0.5 part of an expanding agent, 0.1-0.3 part of an antifreezing agent, 0.1-0.3 part of an air entraining agent and 25-45 parts of deionized water. The toughness and strength of the concrete mortar can be effectively improved, and meanwhile, the concrete mortar has the effects of resisting freezing, compensating shrinkage and reducing the bleeding rate. The concrete mortar integrates water resistance, seepage resistance, crack resistance and compression resistance, can solve the problem that concrete mortar is easy to crack and shrink, improves the durability of concrete, and is simple in preparation process, convenient to operate, relatively low in production cost, relatively short in production period and suitable for large-scale production.
本发明公开了一种混凝土砂浆抗裂外加剂及其制备方法，涉及外加剂技术领域，所述外加剂按重量份包括以下组分：酯型聚羧酸减水剂40～50份、改性叶腊石粉15～25份、掺合料10～20份、硬脂酸钠8～12份、二乙醇胺5～9份、甲基纤维素1～3份、表面活性剂0.3～0.5份、膨胀剂0.1～0.5份、防冻剂0.1～0.3份、引气剂0.1～0.3份和去离子水25～45份。本发明能够有效改善混凝土砂浆的韧性及强度，同时，具有抗冻、补偿收缩，减少泌水率的作用；本发明产品集防水、抗渗、抗裂、抗压于一体，能够解决混凝土砂浆易开裂、收缩的问题，提高了混凝土的耐久性，且本发明制备工艺简单，操作便利，生产成本较低，生产周期较短，适宜大规模生产。
Concrete mortar anti-cracking additive and preparation method thereof
一种混凝土砂浆抗裂外加剂及其制备方法
LIU SHAOLIN (author) / LIU JUNJIE (author) / TIAN SHUAI (author) / LIAO WENWEN (author) / LING ZHI (author) / DENG KAI (author)
2020-11-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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