| Author | Khan, Abu Obayed |
| Call Number | AIT Thesis no.ST-82-10 |
| Subject(s) | Concrete beams--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 reactivity and pozzolanic characteristics of rice husk
ash(RHA) are well studied at AIT and in other parts of the world; the structural performance of RHA concrete on the other hand is yet to be investigated in detail This thesis is concerned with the flexural behaviour of reinforced RHA concrete beams up to failure, A total of five reinforced RHA concrete beams(of 2.4 meter span) have been tested and their various performances compared with five
conventional reinforced concrete beams of identical cross section and steel ratios, and tested under identical conditions. A 50% replacement of canent was adopted in the RHA concrete beams. Three steel ratios,
namely 1. 037%, 1.427% and 1. 948%, were included. Both short term and sustained(3 months) loadings were used in the experimental programme.
The deformation characteristics of RHA concrete beams are found to be slightly inferior to that of the conventional reinforced concrete beams. But the measured deflections of the RHA concrete beams are lower
than the values calculated according to the American Concrete Institute Building Code Requirements for Reinforced concrete(ACI 318-77). The
ultimate flexural strength of the RHA concrete beams is comparable to conventional reinforced concrete beams. Modulus of rupture for RHA
concrete though slightly lower than that of ordinary cement concrete, is still higher than the ACI values~ The ACI code therefore may be used for calculating the short term and medium term deflections, the ultimate flexural strength, the modulus of elasticity and the modulus of rupture of reinforced RHA concrete beams, |
| Year | 1982 |
| 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) | Loo, Yew-Chaye
|
| Examination Committee(s) | Karasudhi, Pisidhi ; Varma, Mahesh
|
| Scholarship Donor(s) | New Zealand Government |
| Degree | Thesis (M.Eng.)- Asian Institute of Technology, 1982 |