Browse > Article
http://dx.doi.org/10.7844/kirr.2019.28.6.46

Properties of Cement Mortar as Particle Size and Hydrothermal Synthesis Temperature Using Scheelite Tailing  

Chu, Yong Sik (Energy & Environmental Division, Korea Institute of Ceracic Eng. & Tech.)
Seo, Seong Gwan (Energy & Environmental Division, Korea Institute of Ceracic Eng. & Tech.)
Choi, Sung Bum (Department of Mineral Materials Business, YEMI)
Kim, Gyoung man (Department of Mineral Materials Business, YEMI)
Hong, Seok Hwan (Department of Mineral Materials Business, YEMI)
Publication Information
Resources Recycling / v.28, no.6, 2019 , pp. 46-53 More about this Journal
Abstract
Cement mortar was hydrothermal-synthesized with particle size of tailings using scheelite tailings deposited without proper treatment, and its physical properties were investigated. The mixing ratios of water-cement and sand-cement were fixed at 75 % and 400 %, respectively, during preparing cemnt mortar, and the sand was replaced by the tailings at 0 ~ 50 %. The particle size of tailings was controlled at 9.3 ~ 53.0 ℃, and the hydrothermal temperature was kept at 60 ~ 180 ℃ for 6 hours after the temperature increased to pretermined temperature with 2 ℃ heating rate. The compressive strength increased with increasing hydrothermal temperature. The compressive strengths were 55.2 MPa and 54.5 MPa when the mortars were prepared with 30 % low arsenic and high arsenic tailings after 60 min grinding. The compresiive strenght was enhanced 300 % compared with reference sample.
Keywords
low arsenic tailngs; high arsenic tailngs; Hydrothermal Synthesis; particle size control; waste recycling;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Y. J. Kim, Y. J. Kim, Y. E. Choi et al., 2013 : Availability Review of Tailings from the Sangdong Tungsten Mine as a Material for Construction, Journal of Korean Recycled Construction Resources Institute, 1(3), pp.204-210.   DOI
2 Y. W. Choi, M. Y. Jung, M. C. Jung et al., 2005 : Properties of Compressive Strength of Mortar Mixed with Tailings from the Sangdong Tungsten Mine for Soil Pavement, The Korean Institute of Resources Recycling, pp.224-227.
3 Y. W. Choi, Y. J. Kim, and W. Choi, 2006 : The Quality Properties of Self-Compacting Concrete Mixed with Tailing from the Sangdong Tungsten Mine, Journal of the Korea Concrete Institute, 18(6), pp.777-783.   DOI
4 S. K. Seo, Y. S. Chu, J. K. Lee et al., 2013 : A Study on Fabrication and Characterization of Inorganic Insulation Material by Hydrothermal Synthesis Method(2), Journal of Korean Recycled Construction Resources Institute, 1(3), pp.225-232.   DOI
5 J. H. Kim, J. K. Lee, and W. G. Hyung, 2013 : Properties of Alkali-Activated Cement Mortar by Curing Method, Journal of the Korea Concrete Institute, 26(2), pp.117-124.   DOI
6 G. Y. Park, G. Y. Kim, and G. C. Choe, 2014 : Evaluation of Early Compressive Strength of Concrete Using Early Strength Improvement Type Cement and Early Strength Activator, The Korea Institute of Building Construction, 14(4), pp.322-328.   DOI
7 Y. H. Kim, T. H. Song, and S. H. Lee, 2011 : Hydrothermal Reactivity Analysis for Hardened Cement Matrix Using Crushed Stone Powder, Korea Society of Waste Management, 28(6), pp.584-593.
8 H. S. Kwon, S. J. Kim, M. H. Gong et al., 2008 : An Experimental Study on the Strength Development of High Strength Mortar by Steam Curing, Architectural Institute of Korea, 24(7), pp.85-92.
9 E. H. Kim, J. K. Kim, and N. C. Seok, 1997 : A Study on Recycle of Waste Concretes for Neutralization and Removal of Heavy Metals, The Korean Environmental Sciences Society, 6(5), pp.497-503.
10 M. C. Han, 2009 : Estimation of Compressive Strength of Concrete Incorporation Fine Particle Cement Considering Blaine Fineness, The Korea Institute of Building Construction, 9(4), pp.139-145.   DOI