Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the field of concrete additives and particularly discloses a compound water reducer, as well as a preparation method and application thereof. The compound water reducer is prepared from the following raw materials in parts by weight: 160-180 parts of a polycarboxylic acid mother liquid; 25-35 parts of ether type polycarboxylic acid slump retaining agent, 20-30 parts of retarder, 0.12-0.18 part of a polyether type defoaming agent, 0.8-1.2 parts of a sustained-release air entraining agent and 760-790 parts of water. The preparation method comprises the following steps: weighing the raw materials in a proportion; mixing the raw materials except the sustained-release air entraining agent, and performing uniform stirring to obtain a mixed solution; adding the sustained-release air entraining agent into the mixed solution, and performing uniform stirring to obtain a compound water reducer. The compound water reducer can be used for preparing manufactured sand concrete and has the advantages of effectively promoting the work performance and strength of the manufactured sand concrete. Furthermore, the preparation method is simple and efficient, has the advantage ofrelatively low preparation cost, and is applicable to volume production.
本申请涉及混凝土外加剂领域，具体公开了一种复合减水剂及其制备方法和用途。复合减水剂由包含以下重量份数的原料制成：聚羧酸母液160‑180份；醚类聚羧酸保坍剂25‑35份；缓凝剂20‑30份；聚醚类消泡剂0.12‑0.18份；缓释引气剂0.8‑1.2份；水760‑790份。其制备方法为：按配比称取原料；对缓释引气剂以外的其余原料进行混合，并搅拌均匀，得到混合液；将缓释引气剂加入混合液中并搅拌均匀，得到复合减水剂。本申请的复合减水剂可用于机制砂混凝土制备，其具有有效提升机制砂混凝土的工作性和强度的优点；另外，本申请的制备方法具有简单高效，制备成本较低，适用于大量生产使用的优点。
The invention relates to the field of concrete additives and particularly discloses a compound water reducer, as well as a preparation method and application thereof. The compound water reducer is prepared from the following raw materials in parts by weight: 160-180 parts of a polycarboxylic acid mother liquid; 25-35 parts of ether type polycarboxylic acid slump retaining agent, 20-30 parts of retarder, 0.12-0.18 part of a polyether type defoaming agent, 0.8-1.2 parts of a sustained-release air entraining agent and 760-790 parts of water. The preparation method comprises the following steps: weighing the raw materials in a proportion; mixing the raw materials except the sustained-release air entraining agent, and performing uniform stirring to obtain a mixed solution; adding the sustained-release air entraining agent into the mixed solution, and performing uniform stirring to obtain a compound water reducer. The compound water reducer can be used for preparing manufactured sand concrete and has the advantages of effectively promoting the work performance and strength of the manufactured sand concrete. Furthermore, the preparation method is simple and efficient, has the advantage ofrelatively low preparation cost, and is applicable to volume production.
本申请涉及混凝土外加剂领域，具体公开了一种复合减水剂及其制备方法和用途。复合减水剂由包含以下重量份数的原料制成：聚羧酸母液160‑180份；醚类聚羧酸保坍剂25‑35份；缓凝剂20‑30份；聚醚类消泡剂0.12‑0.18份；缓释引气剂0.8‑1.2份；水760‑790份。其制备方法为：按配比称取原料；对缓释引气剂以外的其余原料进行混合，并搅拌均匀，得到混合液；将缓释引气剂加入混合液中并搅拌均匀，得到复合减水剂。本申请的复合减水剂可用于机制砂混凝土制备，其具有有效提升机制砂混凝土的工作性和强度的优点；另外，本申请的制备方法具有简单高效，制备成本较低，适用于大量生产使用的优点。
Modified polyether water reducer as well as preparation method and application thereof
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