Publications by authors named "Ton Kien Tong"
The main aim of this study is to investigate the material and monetary flows of CDW management and to characterize the distribution of illegally dumped CDW in Hanoi. Construction and demolition waste management has become a source of much concern to the urban authorities and citizens of big cities in Vietnam. It is estimated that 3000 t of CDW were generated per day from construction and demolition activities in Hanoi, but only 45% of the CDW was received at official landfills, while 55% of the CDW was disposed of elsewhere.
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- Increasing waste generation and lack of a formal recycling system are major challenges for Construction and Demolition Waste (CDW) management in Hanoi, Vietnam.
- The study estimates the supply and demand for CDW recycling plants, finding that demand for recycled concrete aggregates (RCA) surpasses supply, indicating a strong market potential.
- The research evaluates two recycling plant models—stationary and mobile—showing that the stationary plant is a viable investment while mobile plants may need government support through policies like virgin material taxes and quality standards.
This study conducted a survey at 15 building construction and demolition sites in Hanoi, Vietnam in order to identify waste generation rates (WGR), composition, and current handling practices of construction and demolition waste (CDW). Waste quantification based on CDW layout, image analysis to identify CDW components, and face-to-face interviews with construction and demolition contractors to reveal CDW flows were performed. WGRs of 79.
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