Effect of halophilic bacteria on reducing chloride-ion concentration in mortars

被引：5
|
作者：
Yoon, Hyun-Sub [1 ]
Yang, Keun-Hyeok [1 ]
Lee, Sang-Seob [2 ]
Hwang, Ji-Won [3 ]
机构：
[1] Kyonggi Univ, Dept Architectural Engn, Suwon, Gyeonggi Do, South Korea
[2] Sungkyunkwan Univ, Coll Biotechnol & Bioengn, Dept Integrat Biotechnol, Suwon, Gyeonggi Do, South Korea
[3] Kyonggi Univ, Grad Sch, Dept Architectural Engn, Suwon, Gyeonggi Do, South Korea
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2022年 / 351卷
关键词：
Biological mortar; Halophilic bacteria; Salt attack; Chloride -ion concentration; CONCRETE; DURABILITY; BINDING; PURPLE; DIFFUSION; COATINGS; NACL;
D O I：
10.1016/j.conbuildmat.2022.128918
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The present pioneering study examines the significance and limitations of biological mortars originally developed to enhance the salt damage resistance of concrete. Three strains of halophilic bacterium are isolated considering the decomposition mechanism of bacteria for chloride compounds in the cement matrix, thereby reducing the chloride ion concentration in the mortar. Test results showed that Halomonas venusta exhibited a good potential in reducing the chloride-ion concentration in mortars exposed to salt attacks, indicating a lower chloride-ion diffusion coefficient and lower amounts of Friedel's salt by consuming the chloride ions as an energy source for its activity and growth.
引用
收藏
页数：10
相关论文
共 50 条
12345