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Optimizing the Strength of Rigid Pavement by Replacing Class F Fly Ash in Geopolymer Concrete by Coconut Fiber Ash


Brijesh kumar Sahu , RGPM college Bhopal; Prof. Rajesh Joshi, RGPM college Bhopal


Fly Ash, Coconut Fiber Ash, Geopolymer, Sodium Hydroxide


Geopolymers are a type of inorganic polymer & light weight material that can be formed at room temperature with less energy losses by using industrial waste or by-products as source materials to form a solid binder. Geopolymer concrete is manufactured from utilization of waste material from industrial waste such as fly ash. Geopolymer concrete is a type of by which we can be used in applications to fully or partially replace OPC with environmental and technical alternative to Ordinary Portland Cement (OPC) based concrete. In the manufacture industry the creation of Portland cement causes the secretion of air pollutants which results in environmental contamination. It reduces 80 - 90% CO2 emissions. Coconuts fiber is collected from temples & shops and it is burn in open air then the ash obtained by coconut fiber ash is passed through 150 micron sieve. And then replacement of class f fly ash by coconut fiber fly ash replace 0%, to 1.5% and when it is increase from 1.5% i.e. up to 2% result obtained is decreasing in compressive strength. Fly ash plays a vital role in Geopolymer concrete, and class f fly ash is used in construction purposes which contain 10% of lime also to replace the use of conventional ordinary Portland cement. The binding agent is the only difference to the ordinary Portland cement concrete because OPC is responsible for high content of energy losses and it requires high temperature for manufacturing. To trigger the substance in fly ash, sodium hydroxide solution and sodium silicate solution was used in amalgamation.

Other Details

Paper ID: IJSRDV6I120205
Published in: Volume : 6, Issue : 12
Publication Date: 01/03/2019
Page(s): 295-299

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