Performance of surface coatings in suppressing corrosion of reinforced concrete | |
| Author | Apichat Kemngern |
| Call Number | AIT Thesis no.ST-17-23 |
| Subject(s) | Concrete--Corrosion Reinforced concrete construction |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-17-23 |
| Abstract | This research was performed to evaluate the performance of surface coatings in suppressing corrosion of reinforced concrete. Concrete specimens were coated with one coating (form continuous film 300μm to 1mm thickness on the concrete surface), two sealer (form continuous film 100 to 300μm thickness on the concrete surface), two pore liner (make the concrete water-repellent), and two pore blocker types (react with soluble concrete constituents and form insoluble products). Dosage of various surface coatings were according to the manufacturer's recommendations. Corrosion in experiment was accelerated by chloride solution ponding with the concentration of 10 percent by weight. Effect of surface coatings in capillary water absorption of concrete and performance of surface coatings to resist chloride ion penetration in concrete were also studied. The experiment showed that all types of surface coatings was effective to reduce the rate of corrosion in reinforced concrete. Moreover, the test results clearly showed that the specimens were coated with coating and pore liner types performed better than concrete specimens coated with other surface coating types. Thickness of continuous film on concrete’s surface affects to resist the penetration of chloride. However, the results of specimens had some variation in the performance of coatings of the same type that produced from different manufactures. Therefore, the selection of surface coatings should be investigated performance individually before use and criterion for selection also depend on economy, availability, and method of application. |
| Year | 2017 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-17-23 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pennung Warnitchai;Thanakorn Pheeraphan; |
| Examination Committee(s) | Raktipong Sahamitmongkol;Punchet Thammarak; |
| Scholarship Donor(s) | Royal Thai Government – AIT Fellowship; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2017 |