材料科学
环氧树脂
涂层
复合材料
纳米复合材料
耐久性
氯化物
吸水率
聚合物混凝土
冶金
水泥
作者
Mostafa A. Shohide,Mohamed M. Z. Ahmed
出处
期刊:Materials Science Forum
日期:2023-05-26
卷期号:1089: 153-163
摘要
Concrete structure especially that exposed to aggressive environment is deteriorated leading to damage of concrete buildings. Concrete coating is one of the most effective methods used for concrete protection. In this work epoxy was modified with nanosilica (NS) with different loadings. Epoxy nanosilica (EP-NS) composite was formulated and used as concrete protective coating after evaluate its properties regarding drying time, dry film thickness (DFT), adhesion strength. The coated concretes ware tested as; water absorption, contact angle (hydrophobicity) and chloride diffusion resistance by ion exchange method. Although, durability of coated concretes were examined by determining change in weight and change in compressive strength after immersion in both sulfuric acid and sodium chloride solution separately. The study revealed that, the optimum NS content is 3 % by total weight of coating. The prepared EP-NS coatings have significant protection mechanism for enhancing concrete performance against the postulated aggressive attack. Keywords: protective coating, polymer nanocomposite coating
科研通智能强力驱动
Strongly Powered by AbleSci AI