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http://dx.doi.org/10.7844/kirr.2022.31.3.53

A Study on the Characteristics of Chlorine-Containg Cement Depending on Changes in Gypsum and Iron Modulus  

Lee, Young-Jun (Low-carbon & DX R&D Division, Korea Institute of Ceramic Eng. & Tech.)
Kim, Nam-Il (Low-carbon & DX R&D Division, Korea Institute of Ceramic Eng. & Tech.)
Cho, Jeong-Hoon (Low-carbon & DX R&D Division, Korea Institute of Ceramic Eng. & Tech.)
Seo, Sung-Kwan (Low-carbon & DX R&D Division, Korea Institute of Ceramic Eng. & Tech.)
Chu, Yong-Sik (Low-carbon & DX R&D Division, Korea Institute of Ceramic Eng. & Tech.)
Publication Information
Resources Recycling / v.31, no.3, 2022 , pp. 53-60 More about this Journal
Abstract
The physical properties of chlorine-containing cement were analyzed to optimize the operational conditions when waste resources containing chlorine were used in the cement manufacturing process. Cement with clinker to gypsum weight ratios of 95:5 and 93:7 were manufactured. In addition, the iron modulus (IM) of clinker was set to 1.3, 1.5, and 1.7 to evaluate the burnability and physical properties of clinker. With constant chlorine content, increasing gypsum content resulted in a decrease in the 3 day-compressive strength, whereas the 28 day-compressive strength increased. In addition, flow and setting time also increased with increasing gypsum content. As the IM decreased, burnability was improved, free-CaO content decreased, alite and ferrite content increased, and compressive strength increased In particular, the compressive strength of IM 1.3 was approximately 14% greater than that of IM 1.7.
Keywords
chlorine; clinker modulus; gypsum; clinker; compressive strength;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Korea Waste Association, Waste statistics, http://www.kwaste.or.kr/bbs/content.php?co_id=sub0401, October 21, 2020.
2 Council Chungbuk, 2019 : The effect of waste recycling in the cement industry.
3 Peter C. Hewlett, 2020 : Lea's Chemistry of Cement and Concrete, 4th Edition, Elsevier, pp.436-437.
4 Young-Jun Lee, Nam-Il Kim, Jeong-Hoon Cho, et al., 2021 : A Study on the Characteristics of Clinker and Cement as Chlorine Content, KIRR, 30(5), pp.10-16.
5 Eun-Seok Kim, Hong-ki Heo, Jong-Tae Jang, et al., 2002 : Characteristics of Cement Hydration by Chlorine Content, Cement Symposium, 29, pp.145-150.
6 Hyeon-Il Jung, Wan-Ho Cha, Cheol-Min Kim, 2004 : A Study on the Optimum Gypsum Amount in Cement, 31, pp.59-68.
7 H. Kato and K. Yoshioka, 1998 : Influence of Sulfate Ion on the Superplasticizer, Cement Science and Concrete Technology, 52, pp.144-151.
8 K. Negishi, Y. Nakajima, H. Sugaya, et al., 1998 : Effect of Polymorphism of Calcium Sulfate and Soluble Alkaries on Fluidity of Cement Paste Containing Polycarboxylic Acid Type Superplasticizer, Cement Science and Concrete Technology, 52, pp.152-157.
9 Seung Tae Lee, 2015 : Evaluation on the Performance of Mortars Made with Calcium Aluminate Cement, KSMI, 19(6), pp.80-87.
10 Eui-Hak Lee, Jun-Yeong Jeon, Jin-Wook Kim, et al., 2005 : Study of Clinker Characteristics by Cooling Start Temperature and IM Change, Cement Symposium, 32, pp.49-56.
11 Bong-Hee Kang, Jae-won Choi, Tae-Kyoung Ki, et al., 2020 : Study on Burnability and Reactivity of High Al2O3 Content OPC Clinker for the Use of Industrial Waste, J Rec Const Resources, 8(3), pp.294-301.
12 Eui-Hak Lee, Jun-Yeong Jeon, Jin-Wook Kim, et al., 2000 : A study on the Effect of Plaster Form and Amount on the Quality of Cement Hardened Body, Cement Symposium, 27, pp.42-47.