?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.conbuildmat.2018.07.195&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=N.&rft.au=Shafiq%2C+N.&rft.aulast=Shafiq&rft.title=Construction+and+Building+Materials&rft.date=2018&rft.volume=187&rft.issn=09500618&rft.pages=178-184&rft.atitle=Effects+of+used+engine+oil+on+slump%2C+compressive+strength+and+oxygen+permeability+of+normal+and+blended+cement+concrete&rft.genre=article