Improvement of the early and final compressive strength of fly ash-based geopolymer concrete at ambient conditions
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- 作者：Lateef Assia ; lassi@email.sc.edu" class="auth_mail" title="E-mail the corresponding author (Research Assistant) ; SeyedAli Ghaharib ; sghahari@purdue.edu" class="auth_mail" title="E-mail the corresponding author (Research Assistant) ; Edward (Eddie) Deaverc ; edward.deaver@lafargeholcim.com" class="auth_mail" title="E-mail the corresponding author (Technical Service Engineer) ; Davis Leaphartd ; davismleaphart@gmail.com" class="auth_mail" title="E-mail the corresponding author (Undergraduate Student) ; Paul Ziehl ; PhD ; PEe ; ziehl@cec.sc.edu" class="auth_mail" title="E-mail the corresponding author (Professor)
- 关键词：FGC ; fly ash-based geopolymer concrete ; FGC-silica fume ; FGC with silica fume in the activating solution ; SEM ; Scanning Electron Microscopy ; FGP-silica fume ; fly ash-based geopolymer paste based silica fume solution ; C-S-H ; calcium silicate hydrate ; CH ; calcium hydroxide
- 刊名：Construction and Building Materials
- 出版年：2016
- 出版时间：1 October 2016
- 年：2016
- 卷：123
- 期：Complete
- 页码：806-813
- 全文大小：3039 K
文摘
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Fly ash based geopolymer concrete-silica fume is suitable for concrete in hot weather in the absence of external heat.
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Sodium hydroxide is the dominant factor in 7 days compressive strength of FGC-silica fume.
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Sodium hydroxide can be reduced for lower compressive strength needs.
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Portland cement replacement increases the early and final compressive strength in ambient curing conditions.
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Portland cement utilizes the free water leading to a reduction in the formation of microcracks.