• 专利标题:   Self-repairing cement-based permeable crystalline waterproof coating comprises e.g. Portland cement, quartz sand, fast-setting fast-hardening cement, graphene modified steel slag micropowder, sodium sulfate, core masterbatch and thickener.
  • 专利号:   CN111807791-A
  • 发明人:   HE X, ZHUO Y, ZOU C, ZHANG X, HONG Q, HUANG W, WANG G, SONG Y, NIU F, WANG C, JIANG Y, YANG C
  • 专利权人:   CHINA RAILWAY TUNNEL GROUP CO LTD, CHINA RAILWAY TUNNEL SURVEY DESIGN INS
  • 国际专利分类:   C04B111/27, C04B028/04
  • 专利详细信息:   CN111807791-A 23 Oct 2020 C04B-028/04 202091 Pages: 12 Chinese
  • 申请详细信息:   CN111807791-A CN10737788 28 Jul 2020
  • 优先权号:   CN10737788

▎ 摘  要

NOVELTY - Self-repairing cement-based permeable crystalline waterproof coating comprises 35-55 wt.% Portland cement, 30-45 wt.% quartz sand, 5-8 wt.% fast-setting fast-hardening cement, 4-8 wt.% graphene modified steel slag micropowder, 1-2 wt.% calcium carbonate, 1-1.5 wt.% sodium sulfate, 1-2 wt.% core masterbatch and 1-2 wt.% thickener, where the core masterbatch is mixture of bentonite, citric acid and isobutyltriethoxysilane in a mass ratio of 100:30-40:5-10. USE - Used as self-repairing cement-based permeable crystalline waterproof coating. ADVANTAGE - The cement-based permeable crystalline waterproof coating has excellent self-repairing performance, low cost, and improved strength and anti-cracking performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the self-repairing cement-based permeable crystalline waterproof coating; and (2) core masterbatch of the self-repairing cement-based permeable crystalline waterproof coating.