Flexural Behaviour of Reinforced Geopolymer CONCRETE Beams with Glass Fibres

Abstract

Geopolymer concrete is a concrete with an inorganic alumina-silicate binder mechanism correlated to the hydrated calcium silicate binder mechanism of concrete. It possesses the benefits of expeditious strength gain, excellent mechanical and durability properties, avoiding of water curing. In addition to these features they are eco-friendly and capable of being sustained alternative to the ordinary Portland cement but it exhibits the failure behaviour analogous to brittle solids. This inhibition may be overcome by fibre reinforcement to enhance their flexural strength. This paper demonstrating the experimental investigations conducted on Flexural behaviour of reinforced geopolymer concrete (GPC) and reinforced normally vibrated concrete (NVC) beams . A total of twelve beams were cast , in which six beams were of GPC beams and six beams were of NVC beams with varying percentages of glass fibres from 0,0.5,1,1.5,2 and 2.5 by weigh fraction of binder. This paper depicts the Loaddeflection behaviour and Moment -Curvature behaviour of beam specimens.

Optimizing the Flexural Behavior of Bamboo Reinforced Concrete Beams Containing Cassava Peel Ash using Response Surface Methodology

“…Bamboo has become a reliable replacement for steel in structural elements [11]. Previous studies by Premkumar & Vasugi [12] and Qaiser et al [8] have identified bamboo to be suitable for rural construction where steel reinforcement is not affordable. Siddika et al [13] have reported a reduction in construction costs ranging between 10 to 20% with the use of bamboo as reinforcement in place of steel.…”