Polimer Katkılı Harçlarda Farklı Kür Koşullarının Dayanıma Etkisi - Effect of Different Curing Conditions on Strength of Polymer-Incorporating Mortars

Year 2015, Volume: 11 Issue: 2, 0 - , 29.12.2015

Gözde İnan Sezer Şemsi Yazıcı

Abstract

Polimer Katkılı Harçlarda Farklı Kür Koşullarının Dayanıma Etkisi

Bu çalışmada, farklı kür koşullarının polimer katkılı harçların eğilme ve basınç dayanımına etkisi incelenmiştir. Bu amaçla, normal portland çimentosu ve stiren-akrilik polimer emülsiyonu kullanılmıştır. Polimer ağırlıkça %0, 5, 10 ve 15 oranlarında çimento yerine ikame edilerek standart harç karışımları hazırlanmıştır. Çalışma kapsamında örneklerin kürlenmesi için üç farklı kür yöntemi kullanılmıştır. Bunlar, su kürü, etüv+su ve etüv+hava kürüdür. Hazırlanan harç örneklerinin üç farklı kür sonrası 7, 28 ve 90 günlük basınç ve eğilme dayanımları belirlenmiştir. Polimer katkılı harçlarda meydana gelen dayanım değişimleri kontrol harcı ile kıyaslamalı olarak değerlendirilmiştir. 

Effect of Different Curing Conditions on Strength of Polymer-Incorporating Mortars 

In this study, effect of different curing conditions on compressive and flexural strength of polymer-incorporating mortars was investigated. In this aim, normal portland cement and styrene-acrylic polymer emulsion were used. Mortar mixtures were prepared by replacing 0, 5, 10 and 15% polymer with by weight of cement. Three different curing conditions were used for curing the specimens. These are water curing, oven+water curing and oven+air curing. After these different curing conditions 7, 28 and 90 days compressive and flexural strength values of prepared mortar mixtures were determined. Strength variations of polymeric mortar mixtures were comparatively evaluated with control mortar mixture.

Keywords

Polimer, Dayanım, Kür koşulu / Polymer, Strength, Curing conditions

References

• Ramli, M. and Tabassi A.A., “Effects of polymer modification on the permeability of cement mortars under different curing conditions: A correlational study that includes pore distributions, water absorption and compressive strength”, Construction and Building Materials, 28: 561–570 (2012).
• Rai, U.S,, Singh, R.K.,” Effect of polyacrylamide on the different properties of cement and mortar”, Materials Science and Engineering A, 392: 42–50 (2005).
• Ghrici, M., Kenai, S., Said-Mansour, M., “Mechanical properties and durability of mortar and concrete containing natural pozzolana and limestone blended cements”, Cement and Concrete Composites, 29: 542–9 (2007).
• Nazari, A., Riahi, S. “The effects of Cr2O3 nanoparticles on strength assessments and water permeability of concrete in different curing media”, Materials Science and Engineering A, 528: 1173–82 (2011).
• Del Vecchio, F.J.C., Reis, J.M.L., da Costa Mattos, H.S., “Elasto-viscoplastic behaviour of polyester polymer mortars under monotonic and cyclic compression”, Polymer Testing, 35: 62–72 (2014).
• Fowler, D.W., “Polymers in concrete: a vision for the 21st century”, Cement and Concrete Composites, 21: 449–452 (1999).
• Gorninski, J.P., Dal Molin, D.C., Kazmierczak, C.S., “Study of the modulus of elasticity of polymer concrete compounds and comparative assessment of polymer concrete and Portland cement concrete”, Cement and Concrete Research, 34: 2091–2095 (2004).
• Ohama, Y., “Recent progress in concrete-polymer composites, review article”, Advanced Cement Based Materials, 5: 31–40 (1997).
• Shao-jie, L., Qian-qian, H., Feng-qing, Z., “Chu Xiao-meng Utilization of steel slag, iron tailings and fly ash as aggregates to prepare a polymer-modified waterproof mortar with a core–shell styrene–acrylic copolymer as the modifier”, Construction and Building Materials, 72: 15–22 (2014).
• Zhong, S.Y., Tan, M.H., “Chloride diffusivity of styrene–acrylate latex modified mortars”, Journal of Building Materials, 5: 394–398 (2012).
• Huang, Y.W., Liu, W.Q., “Study on functional styrene–acrylate emulsion modified cement based materials”, Chemistry and Adhesion, 28: 320–3 (2006).
• Peng, C.Y., Wen, Z.Y., “Preparation and properties of styrene–acrylate latex modified mortars”, Chemistry of Building Materials, 7: 21–3 (2002).
• Del Vecchio, F.J.C., Reis, J.M.L., da Costa Mattos, H.S. , “Elasto-viscoplastic behaviour of polyester polymer mortars under monotonic and cyclic compression”, Polymer Testing, 35: 62–72 (2014).
• Novoa, P.J.R.O., Ribeiro, M.C.S., Ferreira, A.J.M., Marques, A.T., “Mechanical characterization of lightweight polymer mortar modified with cork granulates”, Composites Science and Technology, 64: 2197–2205 (2004).
• Rebeiz, K.S., “Precast use of polymer concrete using unsaturated polyester resin based on recycled PET waste”, Construction and Building Materials, 10: 215–220 (1995).
• Rebeiz, K.S., “Time-temperature properties of polymer concrete using recycled PET”, Cement and Concrete Composites, 17: 111–124 (1995).
• Aggarwal L.K., Thapliyal, P.C., Karade, S.R., “Properties of polymer-modified mortars using epoxy and acrylic emulsions”, Construction and Building Materials, 21: 379-383 (2007).
• Ohama, Y., “Principle of latex modification and typical properties of latex modified mortar and concrete”, ACI Materials Journal, 86: 511-518 (1987).
• Popovic, S., “Strength losses of polymer modified concrete under wet conditions”, In: David W.F., Polymer modified concrete, ACI SP-99, 165-189 (1987).