<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Geopolymer offers significant promise to the construction world as a possible alternative to ordinary Portland cement (OPC). Like conventional Portland cement concrete, the matrix brittleness in geopolymer composites can be reduced by introducing suitable fibre reinforcement. A few investigations on fibre reinforced geopolymer composites are available. However there is still a gap to comprehend and enhance their performance. This paper describes the effect of incorporating micro polypropylene fibres on the strength and durability characteristics of geopolymer concrete. The engineering and durability properties like workability, compressive strength, split tensile strength, flexural strength, modulus of elasticity, and sorptivity of geopolymer concrete reinforced with micro polypropylene fibres is presented. The effect of the sulfuric acid attack on Geopolymer Concrete reinforced with micro polypropylene fibres is also discussed. The results show that hydrophobic characteristics of the micro polypropylene fibre led to weak contact with the geopolymer binder and hence weakened the mechanical performance of the fly ash based geopolymer matrix. However significant improvements in durability properties were noted.</p></abstract>

Geopolymer offers significant promise to the construction world as a possible alternative to ordinary Portland cement (OPC). Like conventional Portland cement concrete, the matrix brittleness in geopolymer composites can be reduced by introducing suitable fibre reinforcement. A few investigations on fibre reinforced geopolymer composites are available. However there is still a gap to comprehend and enhance their performance. This paper describes the effect of incorporating micro polypropylene fibres on the strength and durability characteristics of geopolymer concrete. The engineering and durability properties like workability, compressive strength, split tensile strength, flexural strength, modulus of elasticity, and sorptivity of geopolymer concrete reinforced with micro polypropylene fibres is presented. The effect of the sulfuric acid attack on Geopolymer Concrete reinforced with micro polypropylene fibres is also discussed. The results show that hydrophobic characteristics of the micro polypropylene fibre led to weak contact with the geopolymer binder and hence weakened the mechanical performance of the fly ash based geopolymer matrix. However significant improvements in durability properties were noted.

Effect of Micro Polypropylene Fibre on the Performance of Fly Ash-Based Geopolymer Concrete

Journal of Applied Engineering Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Geopolymer offers significant promise to the construction world as a possible alternative to ordinary Portland cement (OPC). Like conventional Portland cement...

Effect of Micro Polypropylene Fibre on the Performance of Fly Ash-Based Geopolymer Concrete

Published Online: Jul 25, 2019

Page range: 97 - 108

Received: Feb 06, 2019

Accepted: Mar 21, 2019

DOI: https://doi.org/10.2478/jaes-2019-0013

Keywords
Geopolymer, Polypropylene Fibre, Modulus of Elasticity, Sorptivity, Acid Resistance

© 2019 Rajak Manoj et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of Micro Polypropylene Fibre on the Performance of Fly Ash-Based Geopolymer Concrete

Published Online: Jul 25, 2019

Page range: 97 - 108

Received: Feb 06, 2019

Accepted: Mar 21, 2019

DOI: https://doi.org/10.2478/jaes-2019-0013

KeywordsGeopolymer, Polypropylene Fibre, Modulus of Elasticity, Sorptivity, Acid Resistance

© 2019 Rajak Manoj et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Geopolymer, Polypropylene Fibre, Modulus of Elasticity, Sorptivity, Acid Resistance