Engineering and Microstructures Characteristics of Low Calcium Fly Ash Based Geopolymer Concrete
DOI:
https://doi.org/10.23918/eajse.v2i2p27Keywords:
Geopolymer Concrete, Durability, Bonding Strength, SEMAbstract
This paper reports an experimental study on some mechanical properties and durability characteristics for geopolymer concrete. The mechanical properties were (compressive strength, splitting tensile strength and bonding strength). While the durability characteristics included (permeability, water absorption and exposure to sulphate attack). Also study in-depth microstructure of concrete by the SEM test. All these tests conducted for both geopolymer and normal concrete at 28 days, to show the difference in behavior for the tow concretes. Results show that the compressive strength for geopolymer concrete gain most of its strength at early age as compared with normal concrete, also the results indicate that the bond performance of geopolymer concrete higher than normal concrete by 18.7% and thus proves its application for construction. Geopolymer concrete have good durability comparison with normal concrete, it has shown less permeability, water absorption than normal concrete with high resistance to sulphate attack compared with normal concrete. In addition to that SEM test results show difference in microstructure between geopolymer and normal concrete.
References
ASTM C 496, (2004). Standard Test Method for Splitting Tensile Strength for Cylindrical
Concrete Specimens. American Society for Testing and Materials
ASTM C 618, (2005). Standard Specification for Coal Fly Ash Row or Calcined Natural Pozzolan
for use in Concrete. American Society for Testing and Materials
ASTM C 642, (2004). Standard Test Method for Density, Absorption and Voids in Hardened
Concrete. American Society for Testing and Materials
B.V. Rangan, (2010). Proceedings of the International Workshop on Geopolymer Cement and
Concrete. Allied Publishers Private Limited, Mumbai: India.
BS 1881: Part 116, (1989). Method for Determination of Compressive Strength of Concrete
Cubes. British Standards Institution.
BS EN 12390 – 8 (2000). Standard method for depth of penetration of water under pressure.
British Standards Institution
Davidovits, J. (1994). Global Warming Impact on the Cement and Aggregates Industries. World
Resource Review, 6(2), 263-278.
Davidovits, J. (1999). Chemistry of Geopolymer systems, terminology. In Proceedings of
Geopolymer ’99 International Conferences, Geopolymer Institute, Saint-Quentin,
France.
Davidovits, J. (2008). Geopolymer Chemistry and Applications. Institut Géopolymère, SaintQuentin, France.
Doguparti, R. (2015). A study on bond strength of geopolymer concrete. International Journal of
Civil Environmental, Structural, Construction and Architectural Engineering, 9(3), 355-
358.
Geopolymer Institute. (2010). What Is a Geopolymer? Introduction. Institut Géopolymère, SaintQuentin, France. Retrieved on January 29, 2010, at
http://www.geopolymer.org/science/introduction
Hardjito, D., &Rangan, B. V. (2005). Development and Properties of Low Calcium Fly Ash Based
Geopolymer Concrete. Research Report GC1, Faculty of Engineering, Curtin University
of Technology.
Iraqi Specification, No. 5/ (1984). Cement tests.
Iraqi Specification, No.45/ (1984). Aggregate from Natural Sources for Concrete and
Construction.
Luhar, S., & Khandelwal, U. (2015). A study on water absorption and sorptivity of geopolymer
concrete. SSRG International Journal of Civil Engineering (SSRG-IJCE), 2(8), 1-10.
Malhotra, V. (2002). Introduction: Sustainable development and concrete technology. ACI Concrete
Journal, 1147-1165
McCaffrey, R. (2002). Climate Change and the cement Industry. Global Cement and Lime
Magazine, Special Issue, 15-19
Mehta K., & Monteiro, P. (2006). Concrete Microstructure Properties and Materials. 3rd
addition, McGraw-Hill Companies.
Mehta, P. (2001). Reducing the Environmental Impact of Concrete. ACI Concrete International, 23
(10) 61-66.
Neville, A. (2012). Properties of Concrete. 5th Edition, Wiley, New York: Longman.
Patil, A., Chore, H., & Dode, P. (2014). Effect of curing condition on strength of geopolymer
concrete. Advances in Concrete Construction, 2(1), 29-37.
Rangan, B. V (2008). Low-Calcium, Fly-Ash-Based Geopolymer Concrete. Concrete
Construction Engineering Handbook. Taylor and Francis Group, Boca Raton, FL
RILEM RC 6. (1996). Recommendations for the testing and of constructions material bond test for
reinforcement steel. 2pull-out test, p. 3.
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Eurasian J. Sci. Eng is distributed under the terms of the Creative Commons Attribution License 4.0 (CC BY-4.0) https://creativecommons.org/licenses/by/4.0/
