Construction waste should not directly dispose however it needs to pass through several processes
before being disposed. It should be treated according to proper waste management hierarchy as proposed
by Peng et. al., 1997 in Figure 1. The waste management hierarchy suggests that waste should be reduced,
reused, recycled then be disposed to proper dumpsite like landfill. Further research by Wolsink in 2010
has improvised the waste management hierarchy as in Figure 2. He introduced one step more by avoiding
the waste generation