• 专利标题:   Pumice concrete with electromagnetic wave absorption function, comprises cement, sand, wave-absorbing material, and water, where wave-absorbing material is composite material of e.g. pumice aggregate and ferroferric oxide particles.
  • 专利号:   CN113277784-A, CN113277784-B
  • 发明人:   LI H
  • 专利权人:   LI H, SUZHOU YUDESHUI ELECTRIC TECHNOLOGY CO
  • 国际专利分类:   C04B024/16, C04B028/00
  • 专利详细信息:   CN113277784-A 20 Aug 2021 C04B-028/00 202172 Pages: 8 Chinese
  • 申请详细信息:   CN113277784-A CN10574434 14 Jul 2020
  • 优先权号:   CN10574434, CN10675379

▎ 摘  要

NOVELTY - Pumice concrete with electromagnetic wave absorption function, comprises 20-35 wt.% cement, 15-35 wt.% sand, 35-40 wt.% wave-absorbing material, and water (remaining amount). The wave-absorbing material is a composite material of pumice aggregate, poly (3,4-ethylenedioxythiophene), reduced graphene oxide and ferroferric oxide particles. The particle diameter of pumice bone material is 15 mm, porosity is more than 75%, inner aperture is 120 mu m, layer number of reduced graphene oxide is 8 and transverse size is 20 mu m. The mass ratio of poly (3,4-ethylenedioxythiophene), reduced graphene oxide and ferroferric oxide is 1:0.15:0.35:0.15. The method for preparing pumice concrete with electromagnetic wave absorption function utilizes alkaline reagent, solution of graphene oxide and reducing agent, ferrous and ferric ion, cement, sand, wave absorbing material and water, where the reducing agent is ascorbic acid, the alkaline reagent is aqueous ammonia water. USE - Used as pumice concrete with electromagnetic wave absorption function. ADVANTAGE - The concrete has excellent electromagnetic wave absorption function, and can be prepared by simple method.