Experimental studies on the corrosion of wire mesh in ferrocement | |
| Author | Lukita, Hardi |
| Call Number | AIT Thesis no. ST-85-18 |
| Subject(s) | Ferrocement Corrosion and anti-corrosives |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | This study is conducted to investigate, by experiments, the corrosion of wire mesh in ferrocement specimens subjected to simulated corrosive environments. The parameters used are the thickness of mortar cover, type of cement and surface condition of wire mesh. The actual marine environment is simulated by alternated wetting and drying process comprising 16 hour immersion in sea water and 8 hours drying in the laboratory environment, The immersion cycle ranged from 10 to 20 cycles. Three methods are used to observed the degree of wire mesh corrosion; namely, visual, microscopic, and strength observation. In addition, rice husk ash is used as partial replacement of cement in order to determine the corrosion resistance of ferrocement against acidic attack. Test results reveal that if galvanized wire mesh is used, a mortar cover of 3 mm could provide sufficient protection for ferrocement structures subjected to marine environment. if ungalvanized wire mech is used then a mortar cover of 4 mm is required. Microscopic observation on the corrosion of the wire mesh is inferior to visual observation due to the fact that the corrosion of wire in ferrocement does not occur uniformly over the entire specimen. Similarly, the strength observation does not give accurate results because the strength of the corroded wire mesh is significantly affected by the process of breaking the surrounding mortar. The use of RHA as a cement replacement could effectively increase the resistance of ferrocement against the crown corrosion occurred in both mortar and wire mesh. It is recommended that 10 percent of RHA replacement be used in the mortar for ferrocement structures subjected to chemical attackd |
| Year | 1985 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pichai Nimityongskul |
| Examination Committee(s) | Karasudhi, Pisidhi ;Nishino, Fumio |
| Scholarship Donor(s) | The Government of Japan |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1985 |