• 专利标题:   Composite graphene high-strength construction waste cement mortar, comprises water, cement, recycled fine aggregate, standard sand, graphene oxide and polycarboxylic acid water reducing agent, where fine aggregate is crushed and sieved.
  • 专利号:   CN111410478-A
  • 发明人:   XU Z, GUI C, DAI Y, CHEN B, WANG Y
  • 专利权人:   UNIV ANHUI SCI TECHNOLOGY
  • 国际专利分类:   C04B111/20, C04B018/16, C04B022/02, C04B028/04
  • 专利详细信息:   CN111410478-A 14 Jul 2020 C04B-028/04 202066 Pages: 9 Chinese
  • 申请详细信息:   CN111410478-A CN10235711 30 Mar 2020
  • 优先权号:   CN10235711

▎ 摘  要

NOVELTY - Composite graphene high-strength construction waste cement mortar comprises 12 pts. wt. water, 22 pts. wt. cement, 19.8 pts. wt. recycled fine aggregate, 46.2 pts. wt. standard sand, 0.02 wt.% graphene oxide of the total cement and 0.02 wt.% polycarboxylic acid water reducing agent of the total cement, The fine aggregate is crushed and sieved from construction waste to obtain particles with a particle size between 10 mesh and 60 mesh. USE - Composite graphene high-strength construction waste cement mortar. ADVANTAGE - The composite graphene high-strength construction waste cement mortar has standard compressive strength of 57.6MPa and the flexural strength of 9.03MPa (tested in accordance with GB/T17617-1999 and JGJ/T70-2009). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing composite graphene high-strength construction waste cement mortar, which involves: (A) weighing each raw material according to the ratio; (B) mixing the recycled fine aggregate and standard sand uniformly to obtain mixture A; (C) adding a small amount of mixing water to the graphene oxide; (D) ultrasonically dispersing uniformly; (E) adding cement, polycarboxylic acid water reducing agent and remaining mix; (F) stirring uniformly to obtain mixture B; and (G) mixing mixture A and B to obtain composite graphene high-strength construction waste cement mortar.