Mechanical properties of high strength concrete | |
| Author | Perera, Kalutantirige Janaka Weerasiri |
| Call Number | AIT Thesis no. ST-79-29 |
| Subject(s) | Strains and stresses Concrete--Testing |
| 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 | The main purpose of this work is to test the hardened properties of high strength concrete and express the results in continuous relations from or at least in relative to those of ordinary concrete. The properties examine were modulus of elasticity, Poisson's ratio, tensile strength, fatigue strength and bearing strength in anchorage zone. Four types of concretes whose target strength ranged from 300 to 800 kg/ cm2 at 28 days were used. 'Most properties were tested at the ages of 3 and 28 days. Only the fatigue strengths were tested at the age of 56 days. Following are the main findings: 1. Both modulus of elasticity and tensile strength of concrete increase linearly as the compressive strength increases in a compressive strength range of 150 to 800 kg/cm2. 2. High strength concrete can resist very high bearing strengths than normal strength concrete, which is a great advantage in prestressed concrete structures. 3. Fatigue life of concrete under uniaxial compression decreases as the strength increase. Therefore, it would be safe to use a larger safety factor when high strength concrete is used for structures which are often subjected to severe cyclic loading. |
| Year | 1979 |
| 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) | Yamamoto, Yasuhiko |
| Examination Committee(s) | Kawaguchi, Masahiro ; Worsak Kanok-Nukulchai |
| Scholarship Donor(s) | Government of Norway |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1979 |