Utilization of Construction and Demolition Waste (CDW) for Unbound Road Subbase in Hanoi, Vietnam
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Construction and Demolition Waste (CDW) has been being accounted for a large amount of waste in urban areas of Vietnam due to rapid urbanization and economic growth. In this study, waste masonry collected from a CDW landfill site in Hanoi was crushed and graded in the laboratory to prepare graded recycled aggregate (GRA) for unbound road subbase. Compaction and California Bearing Ratio (CBR) tests were carried out for the GRA samples with different mixing proportions of concrete and clay brick. Experimental results showed that the measured CBR values are dependent on the mixing proportions of concrete and clay brick. Except for 100% recycled clay brick aggregates, the measured CBR met both technical requirements in Vietnam and Japan. Among of tested GRA samples in this study, the combination of 50% recycled concrete aggregate and 50% recycled clay brick aggregate became the most preferable material for the purpose of road subbase construction.
Keywordsconstruction and demolition waste (CDW) recycled graded concrete aggregate (RC) recycled graded clay brick aggregate (RCB) proctor compaction California bearing ratio (CBR)
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This research was supported by JST-JICA Science and Technology Research Partnership for Sustainable Development (SATREPS) project (No. JPMJSA1701).
- Bansal, S. and Singh, S. K. (2014). A Sustainable Approach towards the Construction and Demolition Waste. Int. J. Innov. Res. Sci. Eng. Technol. (IJIRSET) 3(2), 9226–9235.Google Scholar
- Blengini, G.A. and Garbarino, E. (2010). Resources and waste management in Turin (Italy): the role of recycled aggregates in the sustainable supply mix. J Cleaner Prod 18:1021–1030Google Scholar
- Deloitte (2017). Study on Resource Efficient Use of Mixed Wastes, Improving management of construction and demolition waste (Final Report). Prepared for the European Commission, DG ENV. Specific Contract No 07.027727/2014/S12.697004IETUJENV.A2Google Scholar
- JICA report (2018). JICA report on the project for capacity development on integrated management of municipal solid waste in Vietnam.Google Scholar
- JIS A 1211 (2009). Test methods for the California Bearing Ratio of Soils in Laboratory. Japanese Geotechnical Society, Vol.2, JGS 0721.Google Scholar
- Japan Road Association (2010). Handbook on Pavement Reclamation (in Japanese).Google Scholar
- Lockrey, S., Nguyen, H., Crossin, E., and Verghese, K. (2016). Recycling the construction and demolition waste in Vietnam: Opportunities and challenges in practice. J. Clean. Prod. 133, 757–766.Google Scholar
- MLIT (2017). White Paper on Land, Infrastructure, Transport and Tourism in Japan. Ministry of Land, Infrastructure, Transport and Tourism.Google Scholar
- MONRE (2011). Report on National Environment: Solid Waste. Ministry of Natural Resources and EnvironmentGoogle Scholar
- Rodrigues, F., Carvalho, M., and Evangelista, L.B. (2013). Physical, chemical and mineralogical characterization of fine aggregates from construction and demolition waste recycling plants. Journal of Cleaner Production 52:438-445.Google Scholar
- Srujal P., and Patel, C.G. (2016). Cost optimization of the project by construction waste management. International Research Journal of Engineering and Technology (IRJET). ISSN 2395. pp 56–72.Google Scholar
- TCN 332 (2006). Process to determine CBR value of soil, gravel in laboratory. Decision No. 10/2016/QD-BGTVT) (in Vietnamese)Google Scholar
- TCN 333 (2006). Compaction soil and gravel in laboratory. Decision No. 13/2016/QĐ-BGTVT, (in Vietnamese)Google Scholar
- TCVN 8859 (2011). Graded aggregate bases and subbases pavement – Specification for Construction and Acceptance (in Vietnamese)Google Scholar