Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides a preparation method of an environment-friendly high-efficiency concrete water reducing agent, belongs to the technical field of concrete admixtures, and solves the problems that the product quality of the water reducing agent is affected and the compressive property of the water reducing agent is further affected due to the fact that a defoaming agent is difficult to uniformly add in the preparation process of the existing water reducing agent. The preparation method of the environment-friendly high-efficiency concrete water reducing agent comprises the following steps: S1, respectively putting solid HPEG and graphene oxide into a storage box, and sequentially conveying the solid HPEG and the graphene oxide into a reaction cylinder through a feeding mechanism for reaction; s2, adding HPEG into the mother agent mixing cavity, adding hydrogen peroxide, heating to 150-180 DEG C, stirring for 50-70 minutes, then adding glycolic acid, ascorbic acid and acrylic acid, stirring for 40-50 minutes at 130-145 DEG C, and finally adding a sodium hydroxide solution for neutralization reaction to obtain the water reducer mother agent. The water reducer has the effect of further improving the slump retaining property and the pressure resistance of the water reducer.
本发明提供了一种环保高效混凝土减水剂的制备方法，属于混凝土外加剂技术领域，它解决了现有减水剂在制备过程中，难以均匀地添加消泡剂而影响到减水剂的产品质量，进而影响其抗压性能的问题。本环保高效混凝土减水剂的制备方法，包括以下步骤：S1：将固体HPEG和氧化石墨烯分别放入到储料箱内，通过送料机构依次输送到反应筒内进行反应；S2：将HPEG加入到母剂混合腔内，加入双氧水，加热至150‑180℃，搅拌50‑70min，再加入羟基乙酸、抗坏血酸和丙烯酸，在130‑145℃下搅拌40‑50min，最后加入氢氧化钠溶液进行中和反应，得到减水剂母剂。本发明具有进一步提高减水剂的保坍性和抗压性的效果。
The invention provides a preparation method of an environment-friendly high-efficiency concrete water reducing agent, belongs to the technical field of concrete admixtures, and solves the problems that the product quality of the water reducing agent is affected and the compressive property of the water reducing agent is further affected due to the fact that a defoaming agent is difficult to uniformly add in the preparation process of the existing water reducing agent. The preparation method of the environment-friendly high-efficiency concrete water reducing agent comprises the following steps: S1, respectively putting solid HPEG and graphene oxide into a storage box, and sequentially conveying the solid HPEG and the graphene oxide into a reaction cylinder through a feeding mechanism for reaction; s2, adding HPEG into the mother agent mixing cavity, adding hydrogen peroxide, heating to 150-180 DEG C, stirring for 50-70 minutes, then adding glycolic acid, ascorbic acid and acrylic acid, stirring for 40-50 minutes at 130-145 DEG C, and finally adding a sodium hydroxide solution for neutralization reaction to obtain the water reducer mother agent. The water reducer has the effect of further improving the slump retaining property and the pressure resistance of the water reducer.
本发明提供了一种环保高效混凝土减水剂的制备方法，属于混凝土外加剂技术领域，它解决了现有减水剂在制备过程中，难以均匀地添加消泡剂而影响到减水剂的产品质量，进而影响其抗压性能的问题。本环保高效混凝土减水剂的制备方法，包括以下步骤：S1：将固体HPEG和氧化石墨烯分别放入到储料箱内，通过送料机构依次输送到反应筒内进行反应；S2：将HPEG加入到母剂混合腔内，加入双氧水，加热至150‑180℃，搅拌50‑70min，再加入羟基乙酸、抗坏血酸和丙烯酸，在130‑145℃下搅拌40‑50min，最后加入氢氧化钠溶液进行中和反应，得到减水剂母剂。本发明具有进一步提高减水剂的保坍性和抗压性的效果。
Preparation method of environment-friendly efficient concrete water reducing agent
一种环保高效混凝土减水剂的制备方法
24.11.2023
Patent
Elektronische Ressource
Chinesisch
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