STUDY ON FIBRE REINFORCED GEOPOLYMER CONCRETE

Abstract

Due to growing environmental concerns of the cement industry, alternative cement technologies have become an area of increasing interest. On the other hand, already huge volumes of fly ash are generated around the world, most of the fly ash is not effectively used, and a large part of it is disposed in landfills. An effort in this regard is the development of geopolymer concrete, synthesized from the materials of geological origin or by product materials such as fly ash, which are rich in silicon and aluminium. Studies to investigate the effect of addition of fibres on the strength characteristics of geopolymer concrete are limited. Hence, there exists a technical knowledge gap in this area. Hence, an attempt has been made through the present investigation to conduct an experimental programme to study the effect of addition of polypropylene fibre on the strength and other engineering properties of geopolymer concrete composites.  Good bond strength between overlay and substrate is a key factor in performance of concrete repairs. With these needs an exhaustive experimental investigation has been carried out and the effectiveness of GPC as a repair material and as a material with good impact strength has been established.