Development of ferrocement manhole covers for use in Bangkok | |
| Author | Choosak Kasatewit |
| Call Number | AIT Thesis no.ST-00-2 |
| Subject(s) | Reinforced concrete Manhole covers |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | The major problems of existing cast iron manhole covers in Bangkok are heavy weight, high cost and loss due to theft. This research investigates the structural performance of ferrocement manhole covers by using a new type of galvanized crimped woven square wire mesh as reinforcement and high strength mortar as matrix. The load carrying capacity of covers subjected to ve1tical patched load was investigated and the results compared with those of existing cast iron manhole covers. A cost analysis was also conducted. Twenty-two ferrocement manhole covers were cast and tested. The influence of number of wire mesh layers, diameter of skeletal steel and thickness of ferrocement manhole covers was examined. The number of wire mesh layers and diameter of skeletal steel had a significant effect on the load carrying capacities. It was found that ferrocement manhole covers could be used to replace cast iron manhole covers with regard to their load carrying capacities. The load carrying capacity is higher than that specified by the Chinese National Standard CNS 4993 for both vehicular and pedestrian traffic. The performance compared favorably with commercially available cast iron manhole covers. The proposed ferrocement manhole covers are significantly cheaper and lighter than cast iron manhole covers currently used in Bangkok. |
| Year | 2000 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pichai Nimityongsakul; |
| Examination Committee(s) | Sutat Weesakul ;Austriaco, Lilia; |
| Scholarship Donor(s) | Royal Thai Government;Human Resource Development Program (Phase II); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2000 |