A Fundamental Study on the Development of Soil Stabilization Materials for Soil Mixing Method using Vietnam Fly Ash and Blast Furnace Slag

Jae-Hyun Park; Wan-Gyu Yoo; Se-Gwan Seo; Kwang-Wu Lee

doi:10.12814/jkgss.2022.21.4.111

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2022 Vol.21, Issue 4 Preview Page Next Page

Research Article

A Fundamental Study on the Development of Soil Stabilization Materials for Soil Mixing Method using Vietnam Fly Ash and Blast Furnace Slag 베트남 플라이애시 및 고로슬래그를 활용한 지반혼합공법용 지반안정재 개발을 위한 기초연구

30 December 2022. pp. 111-121

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Abstract

It has been reported that current amount of coal ash remains almost 100 million tons and 5.85 million tons of blast furnace slag are generated annually in Vietnam. Vietnam government has encouraged the industries to increase the use of coal ash and blast furnace slag as construction materials as well as in cement production institutionally. However, limited can be applied in the construction field yet. Therefore, in this study, basic performance analysis on five different kinds of fly ash from Vietnam was conducted. In addition, the performances of blast furnace slags generated in Vietnam and Korea were compared and evaluated. Soil stabilizer compressive strength test and solidified soil unconfined compressive strength test were conducted as the basic data for the development of soil stabilizer applied to the soil mixing method using fly ash and blast furnace slag generated in Vietnam. The results showed that the Vietnamese fly ash and blast furnace slag can be used as the raw materials for soil stabilization and improvement.

Keywords

Fly-ash

Blast furnace slag

Soil mixing method

Soil Stabilization material

Compressive strength evaluation

베트남에서 대량 발생하는 플라이애시는 누적 매립량이 약 1억톤에 이르고, 약 1억톤 정도이며, 고로슬래그 역시 약 585만톤 정도 발생하는 것으로 보고되고 있다. 이에 따라 최근 베트남에서도 플라이애시 및 고로슬래그를 재활용하기 위해 제도적으로 대응하고 있으나 아직 활발히 현장에 적용되지 못하고 있다. 이에 본 연구에서는 베트남 발생 플라이애시 5종에 대하여 기본 성능분석을 실시하였고, 베트남 발생 고로슬래그와 국내 발생 고로슬래그의 성능을 비교 평가하였다. 플라이애시와 고로슬래그를 활용하여 지반안정재 압축강도시험, 지반혼합 고화토 일축압축강도 시험을 수행한 결과, 베트남 발생 플라이애시 및 고로슬래그를 지반안정재의 원료로 활용이 가능한 것을 확인하였다.

References

Grand View Research, I. (2017), “Steel market analysis by product (Hot, cold, direct rolled, tubes), by application (Pre-engineered metal buildings, bridges, industrial structures), by PMB, by region, and segment forecasts, 2018-2025”. Marketpushiers.

Ham, T.G., Seo, S.G. and Cho, D.S. (2021), “Evaluation of Applicability of CMD-SOIL Recycled Resources as Ground Improvement Material for Deep Mixing Method”, Journal of the Korea Geosynthetics Society, Vol.20, No.4, pp.43-52.

Jeon, S.J. and Jeong, J.H. (2022), “Carbon Neutrality (Net-Zero) Policy Trends in the Construction Sector and the Role of Smart Construction Technology”, Construction Engineering and Management, Vol.23, No.2, pp.49-54. (in Korean)

Kotra, (2021), “2021 Vietnam Steel Industry Information”, Marketreport. ( https://dream.kotra.or.kr/kotranews/cms/news/actionKotraBoardDetail.do?SITE_NO=3&MENU_ID=200&CONTENTS_NO=1&bbsSn=403&pNttSn=191438 )

KS F 2563 (2020), “Ground granulated blast-furnace slag for use in concrete”. Korea Standard Association (in Korean).

Masson-Delmotte, V., Zhai, P., Pörtner, H.O., Roberts, D., Skea, J., Shukla, P.R. and Waterfield, T. (2018), “Global warming of 1.5°C”. An IPCC Special Report on the impacts of global warming of, Vol.1, No.5.

Min, T.B., Kim, H.Y. and Lim, H.S. (2019), “Characteristics of Electric Arc Furnace Oxidized Slag and Domestic and International Research Trend”. Magazine of RCR, Vol.14, No.2, pp.40-47. (in Korean)

Park, N.B (2022), “Comparative Analysis and Implications of Studies on Korea's 2050 Carbon-Neutral Scenario”, Journal of Climate Change Research, Vol.13, No.5, pp.689-704. 10.15531/KSCCR.2022.13.5.689

TCVN 11586. (2016), “Ground granulated blast-furnace slag for concrete and mortar”. pp.1-12. [in Vietnam].

Thi, P.D., Nguyen, L. and Minh, D.V. (2020), “Study on particle size distribution of aggregate from coal ash for heat-resistant concrete”, IOP Conference Series: Materials Science and Engineering, Vol.869, pp.1-8. 10.1088/1757-899X/869/3/032044

Information

Publisher :Korean Geosythetics Society
Publisher(Ko) :한국지반신소재학회
Journal Title :Journal of the Korean Geosynthetics Society
Journal Title(Ko) :한국지반신소재학회 논문집
Volume : 21
No :4
Pages :111-121
Received Date : 2022-12-12
Revised Date : 2022-12-22
Accepted Date : 2022-12-23
DOI :https://doi.org/10.12814/jkgss.2022.21.4.111

Journal of the Korean Geosynthetics Society ISSN:2508-2876(Print) 2287-9528(Online) 한국지반신소재학회 논문집

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