A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of concrete water reducing agents, in particular to a concrete anti-segregation water reducing agent and a preparation method thereof. The concrete anti-segregation water reducing agent at least comprises the following components in parts by weight: 20-40 parts of a water reducing agent; 5-20 parts of an air entraining agent; 1-5 parts of a thickening agent; 0.1-2 parts of a retarder; and 0.1-3 parts of a defoaming agent. The concrete anti-segregation water reducing agent of the invention provides the anti-segregation water reducing agent for concrete so as to enhance the stability of a fresh concrete multiphase system and improve the workability of concrete. With the concrete anti-segregation water reducing agent and the preparation method thereof of the invention adopted, the problem that concrete using a polycarboxylate superplasticizer or a sulfamate superplasticizer is easy to bleed and harden is solved, the defect that the strength ofthe concrete is greatly reduced by a common air entraining agent is avoided, and the problem that the water reducing rate of the superplasticizer is influenced by a common thickening agent can be avoided.
本发明涉及混凝土减水剂技术领域，具体涉及一种混凝土抗离析减水剂及其制备方法。一种混凝土抗离析减水剂，按重量份计，至少包括以下组分：减水剂20‑40份、引气剂5‑20份、增稠剂1‑5份、缓凝剂0.1‑2份、消泡剂0.1‑3份。本发明提供的混凝土抗离析减水剂，主要作用是增强新拌混凝土多相体系的稳定性，改善混凝土的和易性，解决了使用聚羧酸减水剂或氨基磺酸盐减水剂的混凝土容易出现泌水和板结的问题，避免了一般引气剂大幅降低混凝土强度的缺陷，同时也避免了一般增稠剂影响减水剂减水率的问题。
The invention relates to the technical field of concrete water reducing agents, in particular to a concrete anti-segregation water reducing agent and a preparation method thereof. The concrete anti-segregation water reducing agent at least comprises the following components in parts by weight: 20-40 parts of a water reducing agent; 5-20 parts of an air entraining agent; 1-5 parts of a thickening agent; 0.1-2 parts of a retarder; and 0.1-3 parts of a defoaming agent. The concrete anti-segregation water reducing agent of the invention provides the anti-segregation water reducing agent for concrete so as to enhance the stability of a fresh concrete multiphase system and improve the workability of concrete. With the concrete anti-segregation water reducing agent and the preparation method thereof of the invention adopted, the problem that concrete using a polycarboxylate superplasticizer or a sulfamate superplasticizer is easy to bleed and harden is solved, the defect that the strength ofthe concrete is greatly reduced by a common air entraining agent is avoided, and the problem that the water reducing rate of the superplasticizer is influenced by a common thickening agent can be avoided.
本发明涉及混凝土减水剂技术领域，具体涉及一种混凝土抗离析减水剂及其制备方法。一种混凝土抗离析减水剂，按重量份计，至少包括以下组分：减水剂20‑40份、引气剂5‑20份、增稠剂1‑5份、缓凝剂0.1‑2份、消泡剂0.1‑3份。本发明提供的混凝土抗离析减水剂，主要作用是增强新拌混凝土多相体系的稳定性，改善混凝土的和易性，解决了使用聚羧酸减水剂或氨基磺酸盐减水剂的混凝土容易出现泌水和板结的问题，避免了一般引气剂大幅降低混凝土强度的缺陷，同时也避免了一般增稠剂影响减水剂减水率的问题。
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