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http://dx.doi.org/10.14190/JRCR.2015.3.1.034

Study on the Physical Properties of the Artificial Lightweight Aggregate Recycled from the Dyestuff Sludge Treated Chemically With Ti and Fe Salt  

Choi, Jong-Oh (Department of Civil Engineering, Keimyung University)
Jung, Yong-Wook (Department of COMTEC, Keimyung University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.3, no.1, 2015 , pp. 34-42 More about this Journal
Abstract
The paper investigates environmental hazards and characteristics of the artificial lightweight aggregate manufactured by using dyestuff sludge from dyeing industrial complex. The dyestuff sludge used in this study is chemically treated with Ti and Fe salt for the purpose of recycling. The artificial lightweight aggregate is manufactured through 3 step; 1) Selecting the optimum moisture content by evaluating plasticity from the mixing ratio of the clay and sludge, 2) shaping round type based on the optimum mixing ratio, 3) drying and Sintering process. Based on KS F 2534 "Lightweight Aggregate for Structural concrete", the particle size, fineness modulus, the density, absorption, unit volume weight, stability and environmental hazards of the manufactured lightweight aggregate are evaluated. Experimental results show that the particle size and fineness modulus is out of the range. However, it is observed that other physical properties are within criteria. In addition, it is confirmed that the problem of the particle size and fineness modulus could be solved in the manufacturing process.
Keywords
Dyestuff Sludge; Recycling; Lightweight Aggregate; Clay; Plasticity;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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