A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Concrete anti-segregation agent and preparation method thereof
The invention belongs to the field of preparation and application of concrete additives in the building material industry, and particularly relates to a concrete anti-segregation agent and a preparation method thereof. The concrete anti-segregation agent is prepared by compounding hydrated magnesium silicate, a naphthalene sulfonic acid-formaldehyde condensate and hydroxypropyl methyl cellulose. According to the concrete anti-segregation agent disclosed by the invention, a proper amount of the anti-segregation agent is added aiming at the conditions of over-doping, segregation, bleeding, bottom grabbing, poor workability, sand-stone separation, pipe blockage and the like of concrete added with the polycarboxylic acid water reducing agent, so that molecules of the polycarboxylic acid water reducing agent are adsorbed and inhibited, excessive free water is adsorbed and thickened, and the anti-segregation effect of the concrete is improved. Therefore, the concrete water reducing agent reaches a proper amount again, and the concrete state is improved. The concrete anti-segregation agent disclosed by the invention is simple in preparation method, and the state of the concrete anti-segregation agent can be improved to reach various indexes of concrete use when the mixing amount is only 0.02-0.05% of that of a rubber material, so that the concrete loss is reduced, and the construction efficiency is improved.
本发明属于建材行业混凝土添加剂的制备及其应用领域，具体涉及一种混凝土抗离析剂及其制备方法：用水合硅酸镁、萘磺酸甲醛缩合物、羟丙基甲基纤维素复合而成。本发明的混凝土抗离析剂是针对添加聚羧酸减水剂的混凝土过掺，出现离析、泌水、抓底、和易性差，砂石分离，堵管等情况，加入适量抗离析剂，对聚羧酸减水剂分子进行吸附和抑制，对过多的自由水进行吸附增稠，从而使得混凝土减水剂重新达到一个合适的量，混凝土状态得到改善。本发明的混凝土抗离析剂制备方法简单，掺量只需要胶材的0.02％‑0.05％，就可以改善其状态达到混凝土使用的各项指标，从而降低混凝土损耗，提高施工效率。
Concrete anti-segregation agent and preparation method thereof
The invention belongs to the field of preparation and application of concrete additives in the building material industry, and particularly relates to a concrete anti-segregation agent and a preparation method thereof. The concrete anti-segregation agent is prepared by compounding hydrated magnesium silicate, a naphthalene sulfonic acid-formaldehyde condensate and hydroxypropyl methyl cellulose. According to the concrete anti-segregation agent disclosed by the invention, a proper amount of the anti-segregation agent is added aiming at the conditions of over-doping, segregation, bleeding, bottom grabbing, poor workability, sand-stone separation, pipe blockage and the like of concrete added with the polycarboxylic acid water reducing agent, so that molecules of the polycarboxylic acid water reducing agent are adsorbed and inhibited, excessive free water is adsorbed and thickened, and the anti-segregation effect of the concrete is improved. Therefore, the concrete water reducing agent reaches a proper amount again, and the concrete state is improved. The concrete anti-segregation agent disclosed by the invention is simple in preparation method, and the state of the concrete anti-segregation agent can be improved to reach various indexes of concrete use when the mixing amount is only 0.02-0.05% of that of a rubber material, so that the concrete loss is reduced, and the construction efficiency is improved.
本发明属于建材行业混凝土添加剂的制备及其应用领域，具体涉及一种混凝土抗离析剂及其制备方法：用水合硅酸镁、萘磺酸甲醛缩合物、羟丙基甲基纤维素复合而成。本发明的混凝土抗离析剂是针对添加聚羧酸减水剂的混凝土过掺，出现离析、泌水、抓底、和易性差，砂石分离，堵管等情况，加入适量抗离析剂，对聚羧酸减水剂分子进行吸附和抑制，对过多的自由水进行吸附增稠，从而使得混凝土减水剂重新达到一个合适的量，混凝土状态得到改善。本发明的混凝土抗离析剂制备方法简单，掺量只需要胶材的0.02％‑0.05％，就可以改善其状态达到混凝土使用的各项指标，从而降低混凝土损耗，提高施工效率。
Concrete anti-segregation agent and preparation method thereof
一种混凝土抗离析剂及其制备方法
WANG WENJIN (author) / LIAN WEIHUA (author)
2023-12-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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