Influence of construction defects on mechanical properties of reinforced concrete structures | |
| Author | Teerachai Neamhlong |
| Call Number | AIT Thesis no.ST-00-13 |
| Subject(s) | Reinforced concrete construction Concrete construction--Testing |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | Some reinforced concrete structures probably have defects in the concrete due to inferior construction or other causes, some of which may affect the mechanical properties of the structure. In this study, fourteen specimens having different construction defects modeled in consideration of type and position respectively were tested to make clear that the effects of defects affect not only the load bearing capacity but also the ductility and toughness of the specimens. Here, three construction defects, which are honeycomb, large void and segregation, were picked up for examination. The results show that the significant reductions in both flexural capacity and the toughness occur on the specimens having the defects in the compression fiber of concrete at the crushing region. Furthermore, it is also observed that the cracking pattern changes in some defective specimens as compared with the non-defective specimen though no significant reduction on the capacity appears in them. In addition, the effectiveness of repair of the defects by using a polymer cement mortar is also examined. It is confirmed that the repair material used in this study showed good material performance and the structural capacity and other performances of the repaired specimens can successfully be restored. |
| 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) | Takewaka, Koji; |
| Examination Committee(s) | Pichai Nimityongskul ;Barry, William Joseph; |
| Scholarship Donor(s) | Royal Thai Government; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2000 |