?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.heliyon.2020.e03478&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S.H.B.A.&rft.aulast=Rahman&rft.au=Rahman%2C+S.H.B.A.&rft.date=2020&rft.title=Heliyon&rft.atitle=Investigating+the+expansion+characteristics+of+geopolymer+cement+samples+in+a+water+bath+and+compared+with+the+expansion+of+ASTM+Class-G+cement&rft.volume=6&rft.issn=24058440&rft.issue=2&rft.genre=article