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http://dx.doi.org/10.11112/jksmi.2015.19.1.035

Evaluation of Properties of Polymer-Modified Mortar with CSA  

Joo, Myung-Ki (상지대학교 건설시스템공학과)
Lho, Byeong-Cheol (상지대학교 건설시스템공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.19, no.1, 2015 , pp. 35-44 More about this Journal
Abstract
Two main parameters were examined such as CSA content and polymer-binder ratio to find effects on the strength, water absorption, chloride ion penetration depth, carbonation depth, length change and chemical resistance of polymer-modified mortar with CSA and EVA polymer powder (EVAPP). As results, compressive, flexural, tensile, adhesive strengths, and length change of the polymer-modified mortar with CSA and EVAPP increases with increasing CSA content and polymer-binder ratio, although the water absorption, chloride ion penetration depth, and carbonation depth decrease with increasing polymer-binder ratio and CSA content, and also the chemical resistance decreases. Such strength and durability development is attributed to the high tensile strength of EVA polymer and the improved bond between cement hydrates and aggregates because of the addition of EVAPP and CSA.
Keywords
CSA; Polymer-binder ratio; Strength; Water absorption; Durability;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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1 Choi, S. J., Park, K. T., Kwon, S. J., (2014), Evaluation of Mechanical Properties and Crack Resistant Performance in Concrete with Steel Fiber Reinforcement and CSA Expansive Admixture, Journal of the Korea Institute for Structural Maintenance and Inspection, 18(1), 75-83.   과학기술학회마을   DOI   ScienceOn
2 Han, C. C., Lee, M. H., Park, J. M., Pei, C. C. (2006), Early quality improvement of concrete incorporating CSA admixture, Journal of Architectural Institute of Korea Structure & Construction, 22(4), 127-134.   과학기술학회마을
3 Innami, T. (2000), Effects of standard sand and mixing method on properties of polymer-modified mortars, master thesis nihon university, 103-118.
4 Joeng, S. C., Song, M. S., Lee, K. H., Han, C. G. (2002), Hydration of expansive materials with CSA-system, Journal of KCI, 14(5), 631-637.   과학기술학회마을   DOI   ScienceOn
5 Joo, M. K., Jin, N. J., Yeon, K. S. (2002), Strength and durability of polymer-modified mortars using ground granulated blast-furance slag, Journal of Korea Concrete Institute, 14(2), 164-170.   과학기술학회마을   DOI   ScienceOn
6 Joo, M. K., Lee, Y. S., Youn, D. Y., Jung, I. S. (2005), Durability of high-fluidity polymer-modified mortar using redispersible polymer powder, Journal of Korea Concrete Institute, 17(5), 703-708.   과학기술학회마을   DOI   ScienceOn
7 Kwon, S. O., Bae, S. H., Lee, H. J., Jung, S. H. (2014), Durability of high volume fly ash concrete, Proceedings of tee Korea Concrete Institute, 26(1), 173-174.
8 Lee, Y. S., Joo, M. K. (2003), Drying shrinkage and strength properties of ultrarapid-hardening polymer-modified mortar using redispersible polymer powder, Journal of Korea Concrete Institute, 15(3), 703-708.
9 Moon, H. Y., Sea, J. W., Son, H. H. (1988), A study on the chemical resistance of concrete substituting fly ash, Journal of Korean Society of Civil Engineers, 8(1) 103-112.
10 Ohama, Y. (1973), A study on the properties and mix propotions design of polymer-modified mortars for building construction, Construction research report, (65), 194-198.
11 Ohama, Y., Demura, K., Lin, Z. (1990), Effects of mix propotions and curing conditions on strength properties of superhigh-strength mortars, CAJ proceedings of cement & concrete, (44), 674-679.
12 Ohama, Y., Demura, K., Miyake, M. (1986), Diffusion of chloride ion in polymer-modified mortars and concretes, cement technology annual report, (40), 87-90.
13 Ohama, Y., Miyara, M., Endo, M. (1985), Drying shrinkage and strength of steel fiber reinforced mortars containing shrinkage-reducing agent, The society of materials science, 34(376), 14-18.   DOI
14 Ohama, Y., Shiroishida, K. (1983), Temperature dependency of strength of polymer-modified mortars, Proceedings of the Twenty-sixth Japan Congress on Material Research, The Society of Materials Science, Japan, Kyoto, 195-199.
15 Ohama, Y., Shiroishida, K., Miyake, T. (1982), Thermal resistance of polymer modified mortars, Proceedings of the Twenty-fifth Japan Congress on Material Research, The Society of Materials Science, Japan, Kyoto, Mar, 234-238.
16 Okada, S. (1981), Handbook of concrete structures, asakura bookstore, 568-572.
17 Pei, C. C., Lee, G. C., Park, J. M., Lee, S. H., Han, C. G. (2005), A study on early quality improvement of concrete incorporating CSA admixture, Journal of Korea Institute of Building Construction, 5(1), 25-28.
18 Powers, T. C. (1965), Mechanisms of shrinkage and reversible creep of hardened cement paste, International Conference on the /structure of Concrete, Paper Gl, London, 319-344.
19 Schneider, S. I., DeWacker, D. R., Palmer, J. G. (1993), Redispersible polymer powders for tough, flexible cement mortars, Polymer-Modified Hydraulic-Cement Mixtures, STP 1176, American Society for Testing and Materials, Philadelphia, 76-89.
20 Smith, R. H., Mills, R. H. (1968), Variations in shrinkage of concrete resulting from the use of additives, proceedings of the RILEM/CEMBUREAU International Colloquium on the Shrinkage of Hydraulic Concrete, Vol. l, Instituo Eduardo Torroja, II-G.0-IIG.15.
21 Tomida, R. (1988), Shrinkage-reducing agent, Journal of JCI, 26(3), 55-60.