id	keyword
american_scientific_journal-5820	cement
american_scientific_journal-5820	soil
american_scientific_journal-5820	roadcem
american_scientific_journal-5820	portland
american_scientific_journal-5820	additive
american_scientific_journal-5820	chemical
american_scientific_journal-5820	figure
american_scientific_journal-5820	white
american_scientific_journal-5820	compositions
american_scientific_journal-5820	test
american_scientific_journal-5820	crystalline