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A platform for research: civil engineering, architecture and urbanism
Modified cassava starch-polycarboxylic acid composite water reducing agent
The invention discloses a modified cassava starch-polycarboxylic acid composite water reducing agent, and belongs to the field of building materials. The modified cassava starch-polycarboxylic acid composite water reducing agent is prepared from the following raw materials in parts by weight: 20 to 35 parts of modified cassava starch, 30 to 120 parts of sodium hydroxide, 2 to 6 parts of retarder,0.5 to 4 parts of defoaming agent and 1 to 5.5 parts of air entraining agent. The content of the modified cassava starch in the composite water reducing agent reaches 20% or above, and when the mixingamount of the water reducing agent is 0.3%, the coagulation time exceeds 24 h, and the requirement of the super retarder is met; and when the mixing amount of the composite water reducing agent is 1%, the initial fluidity of the cement paste is greater than 200mm. The development and application of the cassava starch water reducing agent are beneficial to improving the processing technology of the water reducing agent, improving the product quality of the water reducing agent and reducing the environmental pollution, and can effectively solve the problem of output of Guangxi agricultural products and improve the additional value of the products.
本发明公开了一种改性木薯淀粉‑聚羧酸复合减水剂，属于建筑材料领域。所述改性木薯淀粉‑聚羧酸复合减水剂，以重量份为单位包括以下原料：改性木薯淀粉20‑35份、氢氧化钠30‑120份、缓凝剂2‑6份、消泡剂0.5‑4份、引气剂1‑5.5份。改性木薯淀粉在复合减水剂中的含量达20%以上，当减水剂掺量为0.3％时，凝结时间已超过24h，达到超缓凝剂的要求；复合减水剂掺量为1%时，水泥净浆初始流动度大于200mm。本木薯淀粉减水剂的开发应用有助于改进减水剂加工工艺、提高减水剂产品质量、降低环境污染，还能有效解决广西农产品的出路，提高产品附加值。
Modified cassava starch-polycarboxylic acid composite water reducing agent
The invention discloses a modified cassava starch-polycarboxylic acid composite water reducing agent, and belongs to the field of building materials. The modified cassava starch-polycarboxylic acid composite water reducing agent is prepared from the following raw materials in parts by weight: 20 to 35 parts of modified cassava starch, 30 to 120 parts of sodium hydroxide, 2 to 6 parts of retarder,0.5 to 4 parts of defoaming agent and 1 to 5.5 parts of air entraining agent. The content of the modified cassava starch in the composite water reducing agent reaches 20% or above, and when the mixingamount of the water reducing agent is 0.3%, the coagulation time exceeds 24 h, and the requirement of the super retarder is met; and when the mixing amount of the composite water reducing agent is 1%, the initial fluidity of the cement paste is greater than 200mm. The development and application of the cassava starch water reducing agent are beneficial to improving the processing technology of the water reducing agent, improving the product quality of the water reducing agent and reducing the environmental pollution, and can effectively solve the problem of output of Guangxi agricultural products and improve the additional value of the products.
本发明公开了一种改性木薯淀粉‑聚羧酸复合减水剂，属于建筑材料领域。所述改性木薯淀粉‑聚羧酸复合减水剂，以重量份为单位包括以下原料：改性木薯淀粉20‑35份、氢氧化钠30‑120份、缓凝剂2‑6份、消泡剂0.5‑4份、引气剂1‑5.5份。改性木薯淀粉在复合减水剂中的含量达20%以上，当减水剂掺量为0.3％时，凝结时间已超过24h，达到超缓凝剂的要求；复合减水剂掺量为1%时，水泥净浆初始流动度大于200mm。本木薯淀粉减水剂的开发应用有助于改进减水剂加工工艺、提高减水剂产品质量、降低环境污染，还能有效解决广西农产品的出路，提高产品附加值。
Modified cassava starch-polycarboxylic acid composite water reducing agent
改性木薯淀粉-聚羧酸复合减水剂
WU DAN (author) / CHEN FEI (author) / WEI HONGYAN (author) / MO XIEDI (author)
2020-07-07
Patent
Electronic Resource
Chinese
Concrete containing modified cassava starch-polycarboxylic acid composite water reducing agent
| European Patent Office | 2020
Preparation process of modified cassava starch-polycarboxylic acid composite water reducing agent
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2020