JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Strength Characteristics of Recycled Concrete by Recycled Aggregate in Incheon Area Waste Concrete
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Strength Characteristics of Recycled Concrete by Recycled Aggregate in Incheon Area Waste Concrete
Jang, Jea-Young; Jin, Jung-Hoon; Cho, Gyu-Tae; Nam, Young-Kug; Jeon, Chan-Ki;
  PDF(new window)
 Abstract
This paper is to determine the possibility of re-using waste concrete from Incheon city area. The strength test was conducted with five aggregate compounds which was replaced a natural aggregate with recycled aggregate. After checking the physical characteristics of recycled aggregate compounds, the mix design of recycled concrete was conducted. For the relatively comparison between natural and recycled compounds, while the unit aggregate weight was changed, other conditions were fixed. The freezing and thawing test which included fly-ash and super-plastezer were performed to check the durability and workability when recycling waste concrete. In the physical characteristics of recycled aggregate, it was found that the specific gravity of recycled coarse aggregate and recycled fine aggregate satisfied the first grade of recycle specification(KS), and all compounds of recycled aggregate also satisfied the second grade of absorption specification, Especially up to the 50% substitution of recycled aggregate is equal to or a bit lower than that of convention aggregate. In comparison with conventional concrete, the recycled concrete is lower than maximum by 7% in compressive strength decreasing rate after freezing-thawing test. From now, although most of recycled concrete was used to the building lot, subgrade, asphalt admixture, through the result. It was proved that possibility of re-using recycled aggregate as the substructure of bridge, retaining wall, tunnel lining and concrete structure which is not attacked the drying shrinkage severely.
 Keywords
recycled aggregate;recycled concrete;freezing-thaw test;drying shrinkage;
 Language
Korean
 Cited by
1.
재유화형 분말수지와 고로 슬래그 미분말을 혼입한 폴리머 콘크리트의 압축강도 및 내산성,김인수;성찬용;

한국농공학회논문집, 2008. vol.50. 5, pp.19-27 crossref(new window)
1.
Mechanical Properties and Predictions of Strength of Concrete Containing Recycled Coarse Aggregates, Journal of the Korea institute for structural maintenance and inspection, 2016, 20, 2, 49  crossref(new windwow)
2.
Effect of Recycled Coarse Aggregate on Compressive Strength and Mechanical Properties of Concrete, Journal of the Korea Concrete Institute, 2016, 28, 1, 105  crossref(new windwow)
 References
1.
Grub. V.P, Ruh. M, 'Use of Recycted Concrete Aeeregate,' German Committee for Reinforded Concrete, 11-12, November, 1998

2.
연세대학교 산업기술연구소, '폐콘크리트를 이용한 재생골재의 표준화 및 품질평가 시스템 개발연구', 1998. 12

3.
구봉근, 김태봉, 이상근, '폐콘크리트를 활용한 재생골재의 물리적 특성', 건설기술연구소 논문집, Vol. 17, No. 2, 1998. 12, pp.235-244

4.
이진용, 이인대, 김광오, 배성용 '재생콘크리트의 강도발현 및 동결융해 저항성 특성', 한국콘크리트학회지, 제10권 4호, 1998.8

5.
Tam, C. T., 'Recycled Concrete as Fine and Coarse Aggregate in Concrete,' Maepzine. of Concrete Research 39, No. 141, pp.214-220

6.
Hansen T. C. and Nairud, H, 'Strength of Recycled Concrete made from Crushed Concrete Coarse Aggregate,' Concrete International; Design and construction,1983, pp.79-83

7.
Buck, A D.(1977), 'Recycled Concrete as a source of Aggregate,' ACI Materials Journal, Vol. 74, No. 5, pp. 212-219

8.
Kevan. D. sharp, 'Fly Ash for Soil Improvement Geotechnical Special Publication,' No. 36