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2022 Vol.64, Issue 6 Preview Page
Analysis of CO2 Emission and Economic of Rural Roads Concrete Pavement Using Air Cooled Slag Aggregate

괴재슬래그 골재를 적용한 농촌도로 포장 콘크리트의 CO2 배출량 및 경제성 분석

Byong Hwan Ahna
,
Hwang-Hee Kimb
,
Jae-Young Leec
,
Sang-Sun Chad
,
Goen Hee Leee
,
Chan-Gi Parkf†
안 병환a
,
김 황희b
,
이 재영c
,
차 상선d
,
이 건희e
,
박 찬기f†
aPhD, Department of Agricultural Engineering, Kongju National University
bDirector of Research, Research Center, Contecheng Co., Ltd
cResearcher, Research Center, Contecheng Co., Ltd
dResearch Professor, Industrial Development Institute, Kongju National University
eMS Course Student, Department of Agricultural Engineering, Kongju National University
fProfessor, Department of Regional Construction Engineering, Kongju National University
a공주대학교 농업공학과 박사
b(주)컨테크셩 연구센터 연구실장
c(주)컨테쳉 연구소 연구원
d공주대학교 산업개발원 연구교수
e공주대학교 농업공학과 석사과정 학생
f공주대학교 지역건설공학과 교수
† Corresponding author Tel.: +82-41-330-1266, Fax: +82-41-330-1269 E-mail: cgpark@kongju.ac.kr
2022. pp. 25-34
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Abstract

Recently, as a study to air cooled slag, which is an industrial by-product, research is being proceed to use it as a material for concrete. In this study, the workability, air content, compressive strength, CO2 emission and economic feasibility of concrete were analyzed when air cooled slag, an industrial by-product, was applied as aggregate for rural road pavement concrete. As a result of the analysis, both the slump and air contents test results of concrete using the air cooled slag aggregate satisfied the target values, and the compressive strength was increased when the air cooled slag aggregate was used compared to when the natural aggregate was applied. On the other hand, the largest amount of CO2 emission by raw material was found in aggregate. The carbon emission of rural road pavement concrete using air cooled slag aggregate increased when the Korean LCI DB was applied compared to when natural and crushed aggregates were applied, and the emission decreased when the German LCI DB was applied. This results are due to differences in the viewpoints of industrial by-products. However, considering the recycling of waste from the environmental aspect, it is necessary to simultaneously review the CO2 emission and recycling aspects in the future. Also, the application of air cooled slag aggregate had the effect of improving the economic efficiency of rural road pavement concrete about 18.75%.

Keywords
Air cooled aggregate
CO2 emission
economic efficiency
rural road pavement concrete
References

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Information
  • Publisher :The Korean Society of Agricultural Engineers
  • Publisher(Ko) :한국농공학회
  • Journal Title :Journal of Korean Society of Agricultural Engineers
  • Journal Title(Ko) :한국농공학회논문집
  • Volume : 64
  • No :6
  • Pages :25-34
  • Received Date : 2022-08-21
  • Revised Date : 2022-09-15
  • Accepted Date : 2022-09-15
  • DOI :https://doi.org/10.5389/KSAE.2022.64.6.025
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