Characterization of Steel Fiber Reinforced Acrylic Emulsion Polymer Modified Concrete (SFRPMC) through X-Ray Diffraction (XRD) Analysis

Abstract:

The results show the effect of polymer modification on the behavior of Ca (OH)₂ in steel fiber reinforced concrete. The polymer modified concrete were prepared using acrylic emulsion polymer at various polymer-cement ratios; they were tested for mechanical strengths, moulded into specimens and cured. The cured specimens were subjected for compressive strength, flexural strength, splitting tensile strength and modulus of elasticity. The small specimens that moulded were subjected to X-ray diffraction (XRD). From the test results, it is concluded that formation of Ca (OH)₂ in the polymer modified concrete reinforced with steel fiber is reduced possibly because of the absorption of Ca (OH)₂ on polymer films formed in the concrete. The extent of reduction in the quantity of Ca (OH)₂ depends upon the polymer-cement ratio, polymer type or both. Generally SFRPMC of mix 43 with 2.5% polymer-cement ratio were found to be more effective than other SFRPMC with 1.0% and 4.0% acrylic emulsion polymer in reducing the quantity of Ca (OH)₂ in SFRPMC. The cement modifiers did not cause any detrimental effect on the degree of hydration as in SFRPMC therefore, does not provide a proper means for predicting their degree of hydration.

• Periodical: Applied Mechanics and Materials (Volume 833)
• Pages: 87-93
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.833.87
• Online since: April 2016
• Authors: D.S. Hazimmah, Khairunisa Muthusamy
• Keywords: Acrylic Emulsion Polymer (AEP), Curing Time, Material Characterization, Mechanical Properties, Silica Fume, Steel Fiber, Steel Fiber Reinforced Concrete (SFRC), Steel Fiber Reinforced Polymer Modified Concrete (SFRPMC), Water-Cement Ratio, X-Ray Diffraction Analysis (XRD)

References

[1] Bentur, A., and Mindess, S. 2006. Fibre reinforced cementitious composites. 2nd ed. London: Taylor & Francis.

DOI: 10.1201/9781482267747

[2] Li, Z. G., Wang, L. J., and Wang, X. F. 2007. Cement composites reinforced with surface modified coir fibres. Journal Composite Material. 41: 1445-1447.

[3] Kong, X.M., Wu, C.C., Zhang, Y.R. and Li, J. 2014. Polymer-modified mortar with a gradient with a gradient polymer distribution: preparation, permeability, and mechanical behaviour. Construction and Building Materials. 38: 195-203.

DOI: 10.1016/j.conbuildmat.2012.07.080

[4] Jenni, A., Zurbriggen, R., Holzer, L. and Herwegh, M. 2006. Changes in microstructures and physical properties of polymer-modified mortars during wet storage. Cement and Concrete Research. 36(1): 79-90.

DOI: 10.1016/j.cemconres.2005.06.001

[5] Yang, Z., Shi, X., Creighton, A. and Peterson, M. 2008. Effect of styrene-butadiene rubber latex on the chloride permeability and microstructure of Portland cement mortar. Construction and Building Materials. 23(6): 2283-2290.

DOI: 10.1016/j.conbuildmat.2008.11.011

[6] Mirza, J., Mirza, M. and Lapointe, R. 2002. Laboratory and field performance of polymer-modified cement-based repair mortars in cold climates. Construction and Building Materials. 16(6): 365-74.

DOI: 10.1016/s0950-0618(02)00027-2

[7] Wang, R., and Wang, P. 2010. Function of styrene-acrylic ester copolymer latex in cement mortar. Material Structure. 43(4): 443-451.

DOI: 10.1617/s11527-009-9501-3

[8] Al-Zahrani, M., Maslehuddin, M., Al-Dulaijan, S. and Ibrahim, M. 2003. Mechanical properties and durability characteristics of polymer and cement-based repair materials. Cement Concrete Composites. 25(4-5): 527-537.

DOI: 10.1016/s0958-9465(02)00092-6

[9] Afridi, M., Ohamat, Y., Zafar Iqbal, M. and Demuras, K. 2003. Behaviour of Ca(OH)2 in polymer modified mortars. The international Journal of Cement Composites and Lightweight Concrete: 235-244.

DOI: 10.1016/0262-5075(89)90104-8

[10] Jansen, D., Goetz-Neunhoeffer, F., Neubauer, J., Haerzschel, R. and Hergeth, W. -D. 2013. Effect of polymers on cement hydration: A case study using substituted PDADMA. (Elsevier, Ed. ) Cement and Concrete Composites. 35: 71-77.

DOI: 10.1016/j.cemconcomp.2012.08.022

[11] Chandra, S. and Flodin, P. 1987. Interactions of polymer and organic admixtures on Portland cement Hydration. Cement and Concrete Research. 17: 875-90.

DOI: 10.1016/0008-8846(87)90076-7

[12] Jansen, D., Goetz-Neunhoeffer, F., Stabler, C. and Neubauer, J. 2001. A remastered external standard method applied to the quantiification of early OPC hydration. Cement and Concrete Research. 41: 602-608.

DOI: 10.1016/j.cemconres.2011.03.004

[13] Plank, J. and Gretz, M. 2008. Study on the interaction between anionic and cationic latex particles and Portland cement. Colloids and Surfaces A: Physicochem. Colloids Surf. 330: 227-33.

DOI: 10.1016/j.colsurfa.2008.08.005

[14] Larbi, J. and Bijen, J. 1990. Interaction of polymers with Portland cement during hydration - a study of the chemistry of the pore solution of polymer-modified cement systems. Cement and Concrete Research. 20: 139-47.

DOI: 10.1016/0008-8846(90)90124-g

[15] Antonovič, V., Stonys, R., Pundienė, I. et al. 2009. Investigation of formation of structure of complex binder. Materials Science (Medžiagotyra). 15(4): 343-348.

[16] Zawrah, M. F. and Khalil, N. M. 2007. Synthesis and characterization of calcium aluminate nanoceramics for new applications. Ceramics International. 33: 1419-1425.

DOI: 10.1016/j.ceramint.2006.04.022

[17] Almeida, A. E. F. and Sichieri, E. P. 2006. Mineralogical study of polymer modified mortar with silica fume. Construction and Building Materials. 20(10): 882-887.

DOI: 10.1016/j.conbuildmat.2005.06.029

[18] Soufiane, B., Mouli, M., Taibi, H. and Belbachir, M. 2012. Mineralogical study of polymer-mortar composites with PET polymer by means of spectroscopic analyses. Materials Sciences and Applications: 139-150.

DOI: 10.4236/msa.2012.33022

[19] Wang, J., Zhang, S., Yu, H., Kong, X., Wang, X. and Gu, Z. 2005. Study of cement mortars modified by emulsiofier-free latexes. (Elsevier, Ed. ) Cement and Concrete Composites. 27: 920-925.

DOI: 10.1016/j.cemconcomp.2005.05.005

[20] Xu, F., Mingkai, Z., Jianping, C. and Shaoqin, R. 2014. Mechanical performance evaluation of polyester fiber and SBR latex compound-modified cement concrete road overlay material. (Elsevier, Ed. ) Construction and Building Materials. 63: 142-149.

DOI: 10.1016/j.conbuildmat.2014.04.054