Browse > Article
http://dx.doi.org/10.7844/kirr.2021.30.5.17

The Development of Multi Stage Separation Ball Mill for Producing Recycled Aggregate  

Lee, Han-Sol (University of Science and Technology)
Yu, Myouing-yuol (Zero Emission Co., Ltd.)
Lee, Hoon (Korea Institute of Geoscience and Mineral Resources)
Publication Information
Resources Recycling / v.30, no.5, 2021 , pp. 17-24 More about this Journal
Abstract
Natural aggregate regular exploitation has led to environmental and resource depletion issues; consequently, construction waste has become an important raw material in the supply of aggregate smoothly. The recycled aggregate produced in the most of recycled aggregate processing company in Korea has a high adhesion ratio of cement paste and mortar, which affects the water absorption ratio and density. Therefore, the quality of recycled aggregate needs to be improved. In this study, we improved the quality of recycled aggregate through the use of a multistage separation ball mill. This ball mill has a sieve which protects the ball mix and improves the motion. Products produced by using multistage separation ball mill were compared with various quality standard for utilization as recycle aggregate. Finally, we confirmed that the multistage separation ball mill can efficiently separate cement paste and mortar from natural aggregate and that it is suitable for the production of recycled aggregates.
Keywords
Recycled aggregate; multi stage separation ball mill; crushing;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Wonsuk, Lee, Hyundo, Yun, Sunwoo, Kim, et al., 2007 : The effect of replacement ratio of recyceld coarse aggregate on shear strength of reinforced concrete beams without shrear reinforcement, Journal of the Architectural Institute of Korea Structure & Construction, 10, pp.3-10.
2 Heonsoo, Chung, Keunhyeok, Yang, Hyunho, Kim, 2006 : The Influence of the Quality and the Replacement Level of Recycled Aggregate on the Mechanical Properties of Concrete, Journal of the Architectural Institute of Korea Structure & Construction, 6, pp.71-78.
3 Daehyun, Baek, Dongyeop, Han, Myongyoul, Yu, et al., 2007 : The Quality Properties of Recycled Coarse Aggregate Produced by the Bar-crusher and the Fundamental Properties of Concrete Using Aggregate, Architectural Institute of Korea, 10, pp.83-90.
4 Korean Agency for Technology and Standards, KS F 2527. https://e-ks.kr/streamdocs/view/sd;streamdocsId=72059201946145309, September 22, 2021.
5 National Law Information Center, Recycled aggregate quality standard, https://www.law.go.kr/%ED%96%89%EC%A0%95%EA%B7%9C%EC%B9%99/%EC%88%9C%ED%99%98%EA%B3%A8%EC%9E%AC%ED%92%88%EC%A7%88%EA%B8%B0%EC%A4%80, September 22, 2021.
6 Korean Agency for Technology and Standards, KS F 2507. https://e-ks.kr/streamdocs/view/sd;streamdocsId=72059197094868521, September 22, 2021.
7 Korean Agency for Technology and Standards, KS F 2503. https://e-ks.kr/streamdocs/view/sd;streamdocsId=72059203150618613, September 22, 2021.
8 Yonungoh, L., Hyundo, Y., Sunwoo, Kim., et al., 2007 : Experimental study on the flexural and lap splice performances estimation of reiniforced recycled aggregate concrete beams, Journal of the Architectural Institute of Korea Structure & Construction, 23(5), pp.29-36.
9 Jongsung, Sim, Cheolwoo, Park, Sungjae, Park, et al., 2006 : Characterization of Compressive Strength and Elastic Modulus of Recycled Aggregate Concrete with Respect to Replacement Ratios, Journal of the Architectural Institute of Korea Structure & Construction, 1, pp.213-218.
10 Teawang, Lee, Hyunho, Lee, 2015 : The Characteristic of Compressive Strength by Replacement Ratio of Recycled Aggregate for Concrete, Korea Concrete Institute, 10, pp.531-532.
11 Korean Agency for Technology and Standards, KS F 2545. https://e-ks.kr/streamdocs/view/sd;streamdocsId=72059206276510231, September 22, 2021.
12 KORAS, recycled aggregate.https://www.koras.org/05/value.jsp, August 17, 2021.
13 Seonhwa, Song, Kisun, Choi, Youngchan, You, et al., 2009 : Flexural behavior of reinforced recycled aggregate concrete beams, Journal of the Korea Concrete Institute, 21(4), pp.431-439.   DOI
14 Jinyoung, L., Hoon, L., Min, H., et al., 2020 : Planning for comprehensive management of industrial stones and natural aggregate resources, pp.12.
15 Ministry of Environment, 2020 : Waste generation and treatment status, pp.9.
16 Wonsuk, L., Hyundo, Y., 2007 : Shear performance of reinforced recycled aggregate concrete beams, Journal of the Architectural Institute of Korea Structure & Construction, 23(4), pp.19-26.
17 Seungjoe, Yoon, Sooyeon, Seo, Woojin, Lee, et al., 2006 : Concrete physical properties with substitution ratio of recycled Coarse aggregate and recycled fine aggregate, Korea Concrete Institute, 5, pp.161-164.