• 专利标题:   Anti-chloride ion penetration Portland cement comprises Portland cement clinker, limestone, bentonite, fly ash, slag, calcined clay, gypsum, titanium dioxide, and reinforcing agent.
  • 专利号:   CN114656177-A
  • 发明人:   DUAN P
  • 专利权人:   HUNAN XIANFENG WATERPROOF TECHNOLOGY CO
  • 国际专利分类:   C04B024/42, C04B007/02, C04B007/153, C04B007/26, C04B007/36
  • 专利详细信息:   CN114656177-A 24 Jun 2022 C04B-007/26 202275 Chinese
  • 申请详细信息:   CN114656177-A CN10506985 11 May 2022
  • 优先权号:   CN10506985

▎ 摘  要

NOVELTY - Anti-chloride ion penetration Portland cement comprises 30-45 pts. wt. Portland cement clinker, 10-20 pts. wt. limestone, 5-15 pts. wt. bentonite, 5-10 pts. wt. fly ash, 1-5 pts. wt. slag, 5-10 pts. wt. calcined clay, 1-5 pts. wt. gypsum, 1-5 pts. wt. titanium dioxide, and 10-20 pts. wt. reinforcing agent. The preparation of reinforcing agent comprises (a) adding graphene oxide, polydopamine, tris(hydroxymethyl)aminomethane hydrochloride, 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride into 60-80 wt.% ethanol aqueous solution middle, ultrasonically dispersing for 2 hours, adding ammonia solution, and ultrasonically dispersing for 0.3-2 hours; (b) mixing suspension, ethyl orthosilicate, isobutyltriethoxysilane, nonionic surfactant, dispersant and water, reacting, and heating; and (c) mixing with sodium p-dimethylaminoazobenzenesulfonate, polycarboxylate ether water reducing agent and ethanol aqueous solution, centrifuging, drying and grinding. USE - Used as anti-chloride ion penetration Portland cement. ADVANTAGE - The cement forms stable and dense hydrophobic film on the surface of the cement matrix, inhibits the diffusion and transmission of corrosive medium in the pores, improves the fluidity of mortar and sand, saves water, and improves the anti-chloride ion penetration ability of the prepared concrete. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing anti-chloride ion penetration Portland cement.