PERFORMANCE OF EPOXY RESIN AS SELF-HEALING AGENT
DOI:
https://doi.org/10.11113/jt.v77.6386Keywords:
Epoxy resin, compressive strength, self-healing, healing agentAbstract
Formation of cracks due to the shrinkage effects during curing and mechanical loading can deteriorate the concrete performance especially in terms of durability aspect. Chemical and harsh solutions will easily penetrate into the concrete and cause damage to the concrete. In order to solve this problem, researchers have introduced a self-healing concrete; the mechanism of automatically repairing concrete cracks without external intervention. Nowadays, the self-healing concrete by using bacteria as a healing agent had gained interest among researchers. In contrast, this paper presents the study on performance of epoxy resin without hardener as a self-healing agent in concrete. Mortar specimens were prepared with mass ratio of 1:3 (cement: fine aggregates), water-cement ratio of 0.48 and 5 to 20% epoxy resin of cement content. All tested specimens were subjected to wet-dry curing; where compressive strength, apparent porosity and self-healing evaluation were measured. Result shows that, the compressive strength of mortar with addition of epoxy resin by 10% increased significantly compared to normal mortar. Epoxy resin as a healing agent was found to be functioned well as the compressive strength and ultrasonic pulse velocity regain the initial reading with prolonged curing time. These results together with microstructure test indicate that epoxy resin can be used as a self-healing agent.
References
Mihashi, H., Nishiwaki, T. 2012. Development of Engineered Self-Healing and Self-Repairing Concrete-State-of-the-Art Report. Journal of Advanced Concrete Technology. 10(5): 170-184.
Mirza, Jahangir, Muhammad Aamer Rafique Bhutta, and Mahmood Md Tahir. 2013. In Situ Performance Of Field-Moulded Joint Sealants In Dams. Construction and Building Materials. 41: 889-896.
Mohamad, M. E., I. S. Ibrahim, R. Abdullah, AB Abd Rahman, A. B. H. Kueh, and J. Usman. 2015. Friction and Cohesion Coefficients Of Composite Concrete-To-Concrete Bond. Cement and Concrete Composite. 56: 1-14.
Mirza, J., Kaveh, S., Marc-André L., Saeed, M., Bhutta, M. A. R., and Tahir, M. 2013. Properties of Microfine Cement Grouts at 4°C, 10°C and 20°C. Construction and Building Materials. 47: 1145-1153.
Talaiekhozani, A., Keyvanfar, A., Ramin A., Mostafa S., Arezou S., Hesam K., Abd Majid MZ. 2014. Application of Proteus Mirabilis And Proteus Vulgaris Mixture To Design Self-Healing Concrete. Desalination and Water Treatment. 52. (19-21): 3623-3630.
Keyvanfar, A., Abd Majid MZ, Arezou S., Hasanuddin L., Amirreza T., Hussin M. W., Chew T. L., Rosli M. Z., and Fulazzaky M. A. 2014. Application of a Grounded Group Decision-Making (GGDM) Model: A Case Of Micro-Organism Optimal Inoculation Method In Biological Self-Healing Concrete. Desalination and Water Treatment. 52(19-21): 3594-3599.
Zemskov, S. V., Jonkers, H. M., Vermolen, F. J. 2012. A Mathematical Model For Bacterial Self-Healing Of Cracks In Concrete. Journal of Intelligent Material Systems and Structures. 25(1): 4-12.
American Standard Test Method. 2012. Standard Specification for Portland Cement. West Conshohocken. PA: ASTM C150 / C150M-12.
Japanese Industrial Standard. 2000. Test Methods for Polymer-Modiï¬ed Mortar. Japan: JIS A. 1171-2000.
Ariffin, N. F., Hussin, M. W., Mohd Sam, A. R., Rafique Bhutta, M. A., Abdul Shukor Lim, N. H., Abd Khalid, N. H. 2015. Degree of Hardening of Epoxy-Modified Mortars without Hardener in Tropical Climate Curing Regime. Advanced Materials Research. 1113: 28-35.
American Standard Test Method. 2014. Standard Test Method for Rate of Water Absorption of Masonry Mortars. West Conshohocken. PA: ASTM C1403-14.
British Standard. 2009. Testing Hardened Concrete. Compressive Strength of Test Specimens. BS EN 12390-3:2009.
American Standard Test Method. 2009. Standard Test Method for Pulse Velocity through Concrete, West Conshohocken, PA: ASTM C 597-09.
Ariffin, N. F., Hussin, M. W., Mohd Sam, A. R., Bhutta, M. A. R., Abd. Khalid, N. H., Mirza, J. 2015. Strength Properties And Molecular Composition Of Epoxy-Modified Mortars. Construction and Building Materials. 94: 315-322.
Ohama Y., Kumagai S., Miyamoto Y. 2004. High-Strength Development through Accelerated Curing of Epoxy-Modified Mortars without Hardener. In: Maultzsch M (ed.). Proceedings of the 11th international congress on polymers in concrete. BAM, Berlin, Germany. 239-246.
Ohama Y. and Takahashi S. 2003. Effects of Accelerated Curing Conditions on Strength Properties of Epoxy-Modified Mortars without Hardener. Proceedings of the Seventh International Symposium on Brittle Matrix Composites. ZTUREK RSI and Woodhead Publishing, Warsaw. 533-541.
Ohama, Y., Demura, K., Endo, T. 1993. Properties of Polymer-Modified Mortars Using Epoxy Resin without Hardener. American Society for Testing and Materials. 90-103.
Ohama, Y. 1996. Polymer-based Materials for Repair. Construction and Building Materials. 10(1): 77-82.
Noruzman, A. H., Bala M., Mohammad, I., and Zaiton, A. M. 2012. Characteristics of Treated Effluents and Their Potential Applications For Producing Concrete. Journal of environmental management. 110: 27-32.
Xudong C., Shengxing W., Jikai Z. 2013. Influence of Porosity On Compressive And Tensile Strength Of Cement Mortar. Construction and Building Materials. 40: 869-874.
Zhong W. and Yao W. 2008. Influence of Damage Degree On Self-Healing Of Concrete. Construction and Building Materials. 22: 1137-1142.
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