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Prediction Model for Autogenous Shrinkage of High Strength Fly Ash Concrete
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 Title & Authors
Prediction Model for Autogenous Shrinkage of High Strength Fly Ash Concrete
Lee, Hoi-Keun; Lee, Kwang-Myong; Kim, Woo;
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Autogenous shrinkage, a significant contributor of early-age cracking of high strength concrete (HSC), must be avoided or minimized from an engineering point of view. Therefore, it is necessary to study how to reduce and to predict autogenous shrinkage with respect to tile control of early-age cracking. In this study, autogenous shrinkage of HSC with various water-binder ratio (W/B) ranging from 0.50 to 0.27 and fly ash content of 0, 10, 20, and 30% were investigated. Based on the test results, thereafter, a prediction model for autogenous shrinkage was proposed. Test results show that autogenous shrinkage increased and more rapidly developed with decreasing the W/B. Also, the higher fly ash contents, the smaller autogenous shrinkage. In particular, even if much autogenous shrinkage occurs at very early-ages, stress may not be developed while the stiffness of concrete is low. In order to consider the change of concrete stiffness, the transition time referred as stiffening threshold, was obtained by monitoring of ultrasonic pulse velocity evolution and considered in the autogenous shrinkage model. From a practical point of view, the proposed model can be effectively used to predict autogenous shrinkage and to estimate stress induced by autogenous shrinkage.
high strength concrete;autogenous shrinkage;prediction model;fly ash;ultrasonic pulse velocity;
 Cited by
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Paillere, M, Buil, M, and Serrano, J. J., 'Effect of Fiber Addition on the Autogenous Shrinkage of Silica Fume Concrete,' ACI Materiats Journal, Vol.86, No.2, 1989, pp.139-144

Bentz, D. P., Geiker, M. R., and Hansen, K. K.,'Shrinkage-Reducing Admixtures and Early-Age Desiccation in Cement Pastes and Mortars,' Cement and Concrete Research, Vol.31, No.7, 2001,pp.1075-1085 crossref(new window)

Miyazawa, S. and Tazawa, E., 'Prediction Model for Shrinkage of Concrete Including Autogenous Shrinkage, Creep, Shrinkage and Durability Mechanics of Concrete and Other Quasi-Brittle Materials,' Proceedings of Sixth International Conference, Elsevier Science Ltd., 2001, pp.735-746

Jonasson, J. and Hedlund, H, 'An Engineering Model for Creep and Shrinkage in High Performance Concrete,' Proceedings of International RILEM Workshop on Shrinkage of Concrete, Shrinkage 2000, Edited by Baroghel-Bouny, V. and A$$\ddot{1}$$ton, P. C.,Paris, France, 2000

CEBFIP 2000, Structural Concrete: Textbook on Behavior, Design and Performance, Vol.1, Sprint-Druck Stuttgart, 1999, pp.43-46

Dilger, W. H. and Wang, C., 'Creep and Shrinkage of Hgh Performance Goncrete,' Creep and Shrinkage Structural Design Effects, Edited by Al-Manaseer, A., SP-194, American Concrete Institute, Farmington Hils,Michigan, 2000, pp.361-379

de Larrard, F. and Le Roy, R, 'The Influence of Mix Composition on Mechanical Properties of High Performance Silica Fume Concrete,' Proceedings of Fourth International Conference on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete, Turkey, Istanbul, 1992, pp.965-986

Bentur, A., 'Comprehensive Approach to Prediction and Control of Early-Age Cracking in Cementitious Materials,' Creep, Shrinkage and Durability Mechanics of Concrete and Other Quasi-Brittle Materials, Proceedings of Sixth International Conference. Edited by Ulm, F. -J., Bazant, Z. P., and Wittmann, F. H.,Elsevier Science Ltd., 2001, pp.589-998

이회근, 임준영, 이광명, 김병기, '플라이 애쉬를 함유한 고성능 콘크리트의 자기수축,' 콘크리트학회논문집,제14권 2호, 2001, pp.249-256

Technical Committee Reports in Japan Concrete Institute, 'Test Method for Autogenous Shrinkage and Autogenous Expansion of Cement Paste, Mortar, and Concrete,' Autogenous Shrinkage of concrete, Ed. by Tazawa, E., E&FN Spon, London and New York, 1999, pp.56-59

이회근, 이광명, 김영환, 임현준, '초음파 속도를 이용한 콘크리트의 응결 및 초기 강도 추정,' 비파괴검사학회지, 제22권 3호, 2002, pp.292-303

Brooks, J. J. and Megat J. M. A., 'Effect of Metakaolin on Creep and Shrinkage of Concrete,' Cement & Concrete Composites, Vol.23, 2001, pp.495-502 crossref(new window)