id	keyword
app01-4628	concrete
app01-4628	material
app01-4628	indentation
app01-4628	doi
app01-4628	cement
app01-4628	properties
app01-4628	phases
app01-4628	waste
app01-4628	results
app01-4628	https://doi.org/10.1016
app01-4628	fig
app01-4628	sem