id	keyword
fis-5172	bacteria
fis-5172	concrete
fis-5172	strength
fis-5172	sulfate
fis-5172	mix
fis-5172	days
fis-5172	samples
fis-5172	healing
fis-5172	specimens
fis-5172	doi
fis-5172	curing
fis-5172	type
fis-5172	self
fis-5172	calcium
fis-5172	bacillus