(EN) The invention particularly relates to nano recycled concrete, a processing technology and an application thereof. The existing nano recycled concrete also has the following defects that the corrosion prevention effect is not ideal when a conventional marine corrosion prevention technology is applied to a coastal assembly structure for 3D printing, and in addition, interlayer interface bonding and thixotropy of a conventional 3D printing material are insufficient. The invention provides nano recycled concrete. The nano recycled concrete is prepared from the following raw materials: compound cement, recycled sand, fly ash, polyvinyl alcohol, graphene oxide, steel fibers, organic fibers, a water reducing agent, a thickening time control agent, a mineral admixture and water. The 3D printing concrete has good cohesive water-retaining property and adjacent thin layer interface cohesiveness, a micro-capacitor is formed through combination of GO and PVA electrolyte to avoid formation of a corrosion battery in a concrete thin layer, and the 3D printing concrete has good marine durability and has good application prospects when being applied to coastal assembly structure engineering.
(ZH) 本发明具体涉及一种纳米再生混凝土、加工工艺及应用。现有纳米再生混凝土还具有以下缺陷:常规海洋防腐技术应用于3D打印的滨海装配结构防腐效果不理想,另外,常规3D打印材料层间界面粘结与触变性还存在不足。本发明提供了一种纳米再生混凝土,其原料为复配水泥、再生砂、粉煤灰、聚乙烯醇、氧化石墨烯、钢纤维、有机纤维、减水剂、调凝剂、矿物掺合料和水。该3D打印混凝土拥有良好的粘聚保水性与相邻薄层界面粘结性,通过GO与PVA电解液结合形成微电容器避免混凝土薄层中腐蚀电池的形成,具有良好的海洋耐久性,应用于滨海装配结构工程具有良好的应用前景。