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2. ASTM A706/A706M-09, Standard specification for low-alloy steel deformed and plain bars for concrete reinforcement, ASTM International, West Conshohocken, PA, 2009.
3. BS 4449:2005, Steel for reinforcement of concrete-Weldable reinforcing steel-Bar, coil and decoiled product- Specification, British Standards Institution, London, 2005.
4. AS/NZS 4671:2001, Steel reinforcing materials, Standards Australia, Sydney, NSW, co-published by Standards New Zealand, 2001.
5. The effects of momentary stresses in metals;Hopkinson;Proc. R. Soc. Lond.,1905