Browse > Article
http://dx.doi.org/10.5345/JKIBC.2017.17.5.429

Study on Water Reducer Performance for Efficient Fluidity Development and Securing Robustness of Normal Strength Range Concrete  

Son, Bae-Geun (Department of Architectural Engineering, Engineering Research Institute, Gyeongsang National University)
Han, Dong-Yeop (Department of Architectural Engineering, Engineering Research Institute, Gyeongsang National University)
Publication Information
Journal of the Korea Institute of Building Construction / v.17, no.5, 2017 , pp. 429-435 More about this Journal
Abstract
The aim of the research is, for normal strength range concrete mixture, to evaluate the fluidity development and robustness of the mixture depending on various water reducers. Although a usage of water reducer has been essential to make a concrete under the current conditions of worsen aggregate quality, selection of appropriate performance of water reducer is significant. Hence, in this research, regarding the normal strength range mortar, three different performance of water reducers were evaluated in aspects of securing fluidity, and robustness, rheological behaviors. Additionally, for the concrete mixture, the fluidity change was evaluated depending on unit water content for each different water reducer, and the water reducing performance with manufacturing cost was compared and analyzed. By the result of this research, it is expected to provide a case of determining appropriate kind of water reducer and to contribute on conditions of securing sufficient fluidity with stable quality and economical advantage.
Keywords
water reducer; fluidity; segregation; normal strength concrete; reducing unit water content; manufacturing cost;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Mindess S, Young J, Darwin D. Concrete. 2ed ed. New Jersey: Prentice Hall; 2002. 644 p.
2 Uchikawa H, Hanehara S, Sawaki D. The role of steric repulsive force in the dispersion of cement particles in fresh paste prepared with organic admixture. Cement and Concrete Research. 1997 Jan;27(1):37-50.   DOI
3 Esteves LP, Cachim PBB, Ferreira VMM. Effect of Fine Aggregate on the Rheology Properties of High Performance Cement-Silica Systems. Construction and Building Materials. 2010 May;24(5):640-49.   DOI
4 Erdogan S, Fowler D. Determination of aggregate shape properties using x-ray tomographic methods and the effect of shape on concrete rheology (No. ICAR 106-1). Austin (Texas): The University of Texas at Austin; 2005. 321 p.
5 Morin V, Tenoudji FC, Feylessoufi A, Richard P. Superplasticizer effects on setting and structuration mechanisms of ultrahigh-performance concrete. Cement and Concrete Research. 2001 Jan;31(1):63-71.   DOI
6 Han D, Ferron R. Effect of mixing method on microstructure and rheology of cement paste. Construction and Building Materials. 2015 Sep;93:278-88.   DOI
7 Wallevik OH, Wallevik JE. Rheology as a tool in concrete science: The Use of Rheographs and Workability Boxes. Cement and Concrete Research. 2011 Dec;41(12):1279-88.   DOI