Research Article
Yield Strength and Ductility Analysis on Steel Reinforcing Bars Used in Ethiopian Construction Industry
@INPROCEEDINGS{10.1007/978-3-030-80618-7_20, author={Tefera Eniyew and Assefa Asmare and Wim Dewulf}, title={Yield Strength and Ductility Analysis on Steel Reinforcing Bars Used in Ethiopian Construction Industry}, proceedings={Advances of Science and Technology. 8th EAI International Conference, ICAST 2020, Bahir Dar, Ethiopia, October 2-4, 2020, Proceedings, Part II}, proceedings_a={ICAST PART 2}, year={2021}, month={7}, keywords={Tensile testing Mechanical properties Yield strength Ductility}, doi={10.1007/978-3-030-80618-7_20} }- Tefera Eniyew
Assefa Asmare
Wim Dewulf
Year: 2021
Yield Strength and Ductility Analysis on Steel Reinforcing Bars Used in Ethiopian Construction Industry
ICAST PART 2
Springer
DOI: 10.1007/978-3-030-80618-7_20
Abstract
One of the most utilized materials in the construction sectors having enormous compressive strength but weak in tension is concrete. This weakness overcomes with addition of the steel reinforcing bars whose properties must comply standards. Thermomechanical treated steel is an ideal material available at affordable cost to reinforce concrete as it has good ductility with high modulus of elasticity and same thermal expansion with concrete. The Ethiopian construction industry uses locally manufactured and imported rebar available from an open market. Locally produced reinforcing steel bars are milled from imported billets or local billets manufactured from scraps collected as obsolete products. Reinforcing bars produced from Ethiopian metal industries are selected next to the imported one without justifiable reasons. This paper dealt with evaluation of yield strength and ductility of rebar based on the compulsory Ethiopian standard to comply the quality of these locally manufactured rebar in order to build customers confidence. The Strength of four samples 14 mm diameter rebar three from locally produced and one the imported taken from the construction site were tested using universal testing machine. Additionally tension test data of different rebar collected from Amhara Design Supervision and Consultancy Work Enterprise were analyzed. Based on the results obtained, some of reinforcing bars from imported and locally produced have faced rejection.
