“…The list is definitely not exhaustive (Krishnaswamy and Das 2012). There are many other waste materials with a possible application potential in highway construction, for example, andesite waste (Uzun and Terzi 2012), baghouse fines (FHWA 2013), e-waste plastics (Colbert et al 2013), excavation waste (Arulrajah et al 2012a), cement kiln dust (Taha 2003;Taha et al 2004), lime kiln dust (Griffiths and Krstulovich Jr 2002), oil shale waste, wastes from phosphate and aluminum industry (CEMP 1999;Misra et al 2004), waste lime from glass and detergent industry (Do et al 2008), sludge from paper industry, spray drier fly ash, silica fume (CEMP 1999), sulphate waste (CEMP 1999; Stroup-Gardiner and Wattenberg-Komas 2013a), used engine oil (Hamad et al 2003;Sherwood 1995) and so on. The list is ever expanding.…”