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http://dx.doi.org/10.14190/JRCR.2021.9.4.594

Evaluation of the Effect of Rust Formation and the Characteristics of Sound Absorption of PSMA Concrete Mixture Using Steel Slag Aggregate  

Kim, Hyeok-Jung (Industry-Academic Cooperation Foundation, Hankyong National University)
Jang, Dong-Bok (SG Corporation, SG holdings)
Kim, Han-Na (Industry-Academic Cooperation Foundation, Hankyong National University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.9, no.4, 2021 , pp. 594-601 More about this Journal
Abstract
In order to expanding of the use of steel slag, a by-product of steel industry, as a road paving construction material, this present study confirmed the possibility of the rust formation of steel slag aggregate and evaluated the durability performance and the noise reduction characteristics of asphalt concrete mixture. As a result of conducting the rust formation test of aggregate, no rust was observed in both aggregate, so it is judged that the possibility of rust formation in the actual road water environment is very low. As a result of performing the moisture resistance test, all mixtures showed a tensile strength ratio exceeding 85%, satisfied the standard as asphalt mixture. In addition, the sound absorption coefficient of the steel slag aggregate mixture was measured to be higher than that of the general aggregate mixture. Accordingly, it is speculated th at th e steel slag aggregate mixture can more effectively respond to road noise reduction than the general mixture.
Keywords
Steel slag aggregate; Rust; Sound absorption coefficient; Tensile strength ratio;
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