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Standard Reference Materials for Cement Paste: Part II-Determination of Mixing Ratios

Department of Safety Engineering, Dongguk University-Gyeongju, 123 Dongdae-ro, Gyeongju, Gyeongbuk 38066, Korea
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Materials 2018, 11(5), 861; https://doi.org/10.3390/ma11050861
Received: 9 May 2018 / Revised: 9 May 2018 / Accepted: 18 May 2018 / Published: 22 May 2018
(This article belongs to the Section Advanced Composites)
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Abstract

A variety of special concrete structures have been designed for domestic and overseas construction markets that require highly advanced construction technology. Therefore, it is necessary to secure quantitative construction technology and develop a standard reference material (hereinafter: SRM) with consistent flow performance and quality in order to evaluate the quantitative performance of flowability. On the other hand, the flowability of concrete is influenced greatly by the flowability of the cement paste. In addition, considering the design strength and workability, the mix design was carried out at various mixing ratios, according to the purpose of the site. Therefore, based on the derived components of standard reference materials for cement paste, this paper proposes a mixing ratio for standard reference materials that can uniformly simulate the flow characteristics of cement paste, according to the water–cement ratio (W/C). The results show that yield stress was determined by the ratio of water and glycerol while plastic viscosity was controlled by the limestone content. Finally, the mixing ratio of standard reference materials that can simulate the rheological properties of cement paste by W/C was suggested. View Full-Text
Keywords: flowability; standard reference materials; rheology; yield stress; plastic viscosity flowability; standard reference materials; rheology; yield stress; plastic viscosity
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Lee, D.K.; Choi, M.S. Standard Reference Materials for Cement Paste: Part II-Determination of Mixing Ratios. Materials 2018, 11, 861.

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