Fibre and hybrid fibre reinforced geopolymer concrete– A Review

In The utilization of cementing material such as silica fume, flyash, granulated blast furnace slag, rice-husk ash and metakaolin are new trend in concrete studies. Ordinary Portland cement utilizes significant amount of natural resources and pollutes the atmosphere by emitting large amount of carbondioxide.so to reduce this ill effect, a new research field is developed in concrete called geopolymer concrete. In geopolymer composite products, the inorganic alumina silicate polymer gel is synthesized from source material which is rich in silicon and aluminum, which has low calcium (class F) flyash, which binds the loose aggregate, and other unreacted materials in the produced geopolymer mix. Fibres play a vital role in geopolymer concrete, mainly due to their low price, easy availability, excellent characteristics in improving tensile strength, flexural strength, resistance to plastic shrinkage during curing and crack propagation by controlling the crack widths tightly, thus improving durability. This paper briefly reviews the various research work done in the area of fibre and hybrid fibre reinforced geopolymer concrete and its strength properties.