Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polycarboxylate concrete water reducing agent and preparation method thereof
The invention discloses a polycarboxylic concrete water reducing agent and a preparation method thereof. The polycarboxylate concrete water reducing agent is prepared from raw materials in percentage by mass as follows: 10%-15% of a polymeric monomer, 6%-8% of acrylic acid, 3.5%-4.8% of a viscosity reducer, 2.7%-3.3% of terminated phosphate, 2%-6% of hydroxyethyl acrylate, 0.08%-12.6% of chitosan fibers, 1%-4% of a polycarboxylic acid slump retaining agent, 1.5%-3.5% of inorganic nanoparticles, 5%-10% of a chemical-resistant modifier, 3%-6% of oyster shell powder, 1%-25% of tartaric acid, 1-2% of gluconic acid and 1-4% of AS resin. According to the polycarboxylate concrete water reducing agent and the preparation method thereof, by controlling the content of the viscosity reducer, the polycarboxylate concrete water reducing agent has excellent slow release performance, improves the fluidity of concrete, has the effect of remarkably delaying the setting time of the concrete, prevents premature drying and setting, and also ensures that the polycarboxylate concrete water reducing agent has high water reduction and slump loss resistance at the same time.
本发明公开了一种聚羧酸系混凝土减水剂及其制备方法，由以下质量百分比的原料制备而成：聚合单体10‑15％、丙烯酸6‑8％、降粘剂3.5‑4.8％、封端磷酸酯2.7‑3.3％、丙烯酸羟乙酯2‑6％、壳聚糖纤维0.08‑12.6％、聚羧酸保坍剂1‑4％、无机纳米粒子1.5‑3.5％、耐化学品改性剂5‑10％、牡蛎壳粉3‑6％、酒石酸1‑25％、葡萄糖酸1‑2％和AS树脂1‑4％。该聚羧酸系混凝土减水剂及其制备方法，通过控制了降粘剂的含量，具有优良的缓释性能，提高混凝土的流动性，具有显著延缓混凝土凝结时间的作用，防止过早的干燥凝结，同时也保证了聚羧酸减水剂在兼顾高减水的同时也兼具保坍型。
Polycarboxylate concrete water reducing agent and preparation method thereof
The invention discloses a polycarboxylic concrete water reducing agent and a preparation method thereof. The polycarboxylate concrete water reducing agent is prepared from raw materials in percentage by mass as follows: 10%-15% of a polymeric monomer, 6%-8% of acrylic acid, 3.5%-4.8% of a viscosity reducer, 2.7%-3.3% of terminated phosphate, 2%-6% of hydroxyethyl acrylate, 0.08%-12.6% of chitosan fibers, 1%-4% of a polycarboxylic acid slump retaining agent, 1.5%-3.5% of inorganic nanoparticles, 5%-10% of a chemical-resistant modifier, 3%-6% of oyster shell powder, 1%-25% of tartaric acid, 1-2% of gluconic acid and 1-4% of AS resin. According to the polycarboxylate concrete water reducing agent and the preparation method thereof, by controlling the content of the viscosity reducer, the polycarboxylate concrete water reducing agent has excellent slow release performance, improves the fluidity of concrete, has the effect of remarkably delaying the setting time of the concrete, prevents premature drying and setting, and also ensures that the polycarboxylate concrete water reducing agent has high water reduction and slump loss resistance at the same time.
本发明公开了一种聚羧酸系混凝土减水剂及其制备方法，由以下质量百分比的原料制备而成：聚合单体10‑15％、丙烯酸6‑8％、降粘剂3.5‑4.8％、封端磷酸酯2.7‑3.3％、丙烯酸羟乙酯2‑6％、壳聚糖纤维0.08‑12.6％、聚羧酸保坍剂1‑4％、无机纳米粒子1.5‑3.5％、耐化学品改性剂5‑10％、牡蛎壳粉3‑6％、酒石酸1‑25％、葡萄糖酸1‑2％和AS树脂1‑4％。该聚羧酸系混凝土减水剂及其制备方法，通过控制了降粘剂的含量，具有优良的缓释性能，提高混凝土的流动性，具有显著延缓混凝土凝结时间的作用，防止过早的干燥凝结，同时也保证了聚羧酸减水剂在兼顾高减水的同时也兼具保坍型。
Polycarboxylate concrete water reducing agent and preparation method thereof
一种聚羧酸系混凝土减水剂及其制备方法
LIAN WEIHUA (Autor:in)
13.08.2021
Patent
Elektronische Ressource
Chinesisch
Polycarboxylate water reducing agent and preparation method thereof
| Europäisches Patentamt | 2020
Polycarboxylate water reducing agent and preparation method thereof
| Europäisches Patentamt | 2015
Polycarboxylate water reducing agent and preparation method thereof
| Europäisches Patentamt | 2020
Polycarboxylate-type concrete water reducing agent and production method thereof
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2020