id	keyword
american_scientific_journal-7742	construction
american_scientific_journal-7742	printing
american_scientific_journal-7742	research
american_scientific_journal-7742	technology
american_scientific_journal-7742	doi
american_scientific_journal-7742	vol
american_scientific_journal-7742	engineering
american_scientific_journal-7742	concrete
american_scientific_journal-7742	materials
american_scientific_journal-7742	respondents
american_scientific_journal-7742	sciences
american_scientific_journal-7742	journal
american_scientific_journal-7742	american
american_scientific_journal-7742	asrjets
american_scientific_journal-7742	volume