Waste reduction final report -4 - Test Input
Waste reduction final report -4 - Test Input
Waste reduction final report -4 - Test Input
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Singapore<br />
Contributed by:<br />
Dr Edward Anggadjaja<br />
Assistant Director<br />
Building and Construction Authority<br />
Low Giau Leong<br />
Senior Research Officer<br />
Building and Construction Authority<br />
Ms Bek Jun Hui<br />
Senior Research Officer<br />
Building and Construction Authority<br />
1. Current national statistics<br />
Background<br />
Singapore is a small city state sited on about 700 km 2 of land, supporting a population of<br />
about 5 million people. With one of the highest population densities in the world but<br />
practically no natural resources, the development of the city has to be undertaken in a<br />
sustainable manner to ensure a first-rate living environment not only for current, but also<br />
future generations of Singaporeans. The building and construction sector, being one of the<br />
key drivers of Singapore’s economy (19.8% growth in 2009), will be at forefront of the<br />
national sustainable development effort.<br />
Demolition <strong>Waste</strong><br />
Demolition waste quantities in the last three years (see Figure 1) showed that there are<br />
significant quantities of construction and demolition waste (C&D waste) from which quality<br />
recycled concrete aggregates (RCA) could be recycled. Based on these data, an average of<br />
1.19 million tons of C&D waste could potentially be recycled each year. Figure 2 shows that<br />
of the estimated 1.01 million tons of demolition waste generated in 2010, concrete waste<br />
makes up about 66% (or 0.67 million tons) of demolition waste. As the total aggregate<br />
content of concrete is about 75% per unit volume, this means 0.5 million tons of RCA could<br />
be potentially reclaimed for reuse yearly.<br />
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