id	keyword
asir-5028	ash
asir-5028	concrete
asir-5028	cement
asir-5028	fly
asir-5028	strength
asir-5028	wood
asir-5028	rice
asir-5028	husk
asir-5028	materials
asir-5028	waste
asir-5028	research
asir-5028	et al
asir-5028	compressive
asir-5028	portland