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Drying Shrinkage Properties of Latex Modified Concrete with Ordinary Cement and Rapid-Setting Cement
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 Title & Authors
Drying Shrinkage Properties of Latex Modified Concrete with Ordinary Cement and Rapid-Setting Cement
Yun, Kyong-Ku; Jeong, Won-Kyong; Kim, Sung-Hwan; Lee, Joo-Hyung;
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 Abstract
Drying shrinkage cracking which may be caused by the relatively large specific surface is a matter of grave concern for latex modified concrete(LMC) overlay and rapid-setting cement latex modified concrete(RSLMC) overlay. LMC and RSLMC were studied for field applications very actively in terms of strength and durability in Korea. However, there were no considerations in drying shrinkage. Therefore, the purpose of this dissertation was to study the drying shrinkage properties of LMC and RSLMC with the main experimental variables such as cement types(ordinary portland cement, rapid setting cement), latex contents(0, 5, 10, 15, 20%) and curing days at a same controlled environment of 60% of relative humidity and 2 of temperature. The drying shrinkage for specimens was measured with a digital dial gauge of Demec. The test results showed that the drying shrinkage of LMC and RSLMC were considerably lower than that of OPC and RSC, respectively. This might be attributed to the interlocking of hydrated cement and aggregates by a film of latex particles, water retention due to hydrophobic, and colloidal properties of the latexes resulting in reduced water evaporation.
 Keywords
LMC;RSLMC cement types;latex;strength;drying shrinkage;LMC;RSLMC;
 Language
Korean
 Cited by
 References
1.
김기헌, 박상일, 양희용, 윤경구, 이주형, '라텍스개질 콘크리트를 이용한 고속도로 교면포장의 현장적용,' 도로포장공학회 학술발표회논문집, 2000. pp.117-123

2.
ACI Committe 548, 'State of the Art, Polymer Modified concrete,' ACI. 548. 3R-91. 1991

3.
Ohama, Y., 'HANDBOOK OF POLYMER-MODIFIED CONCRETE AND MORTARS,' Noyes Publication. 1995

4.
NCHRP Synthesis 179, 'Latex-Modified Concrete and Mortars' 1992

5.
정원경, '초속경 시멘트를 사용한 라텍스개질 콘크리트의 강도발현 및 투수특성,'강원대학교 석사학위논문.2001. pp.1-55

6.
최성욱, '소포제를 이용한 초속경 라텍스개질 콘크리트의 성능개선,'강원대학교 석사학위논문, 2002. pp.16-20

7.
Sprinkel, Michael M., 'High-Early-Strength Latex Modified Concrete Overlays,' Transportation Research Record 1204, National Research Council, Washington, D.C, 1988, pp.42-51

8.
Ohama, Y. and H Hashimoto, 'Drying Shrinkage cnd Cbmpressive Creep of Polymer Modified Concrete,'Semento-Gijutsu-Nempo, Japan, 1978, pp.308-311

9.
Ohama, Y. and S. Kan, "Effects of Spedmen Size onStrength and Drying Shrinkage of Polymer-ModifiedConcrete" The Intemcitioncit Jounal of Cement Coirpositesand Hght Weight Concrete, Vol.4, 1982, PP.229-233

10.
이진용, 배성용, 박태욱, 최환세, '재생콘크리트 강도 및 건조수축 특성,' 한국콘크리트학회논문집, 제9권, 2호,1997

11.
한만엽, '건조수축의 메카니즘과 물의 역할,' 한국콘크리트학회지, 제3권,2호, 1991

12.
Kawano, T., 'Studies on the Mechanism of Reducing Drying Shrinkage of Cement Mortar Modified by Rubber Latex,' Proceedings of the Third International Congress on PoIymers in Concrete, Koriyama, Japan, Vol.1, 1982, pp.147-162

13.
Michalyshin, J.J., 'Shrinkage of High Latex-Modified Concrete versus Conuentional Concrete Containing Water Reducers,' Dow Chemical Company, 1983