Studies on adhesive bond strength of steel reinforcing bars with fly ash based-ambient cured geopolymer concrete

摘要: Geopolymers are inorganic amorphous alumina-silicate binders formed by Alkali Activation of Geoploymer Source Materials. Concrete made using Geopolymer excellent alternative to Ordinary Portland Cement(OPC) concretes from strength, durability and ecological considerations. Considerable investigations have been carried out on the usage Concrete(GPC) for use as suitable construction. The investigation bond behaviour reinforcing bars used in GPC concrete a new binding material is very important. Studies reinforced members limited especially with concrete. stress transfer between steel depends chemical adhesion, sliding friction mechanical interactions. This paper describes “adhesive behavior” machine polished 12,16 20mm diameter embedded concretes. specimens were investigated pull-out tests per Indian Standard Code IS:2770, adhesive stresses slips found compared values due adhesion OPC similar compressive strengths levels. possess higher strength cement increased increase GPC. Differing stress-slip curve concrete, maximum plateau observed 39MPa exhibit strain softening stage after peak stress, whereas 59MPa hardening curve. Maximum mixes 30 80% than average