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Biomimetic Antifreeze Polymers
Full Title:
驰别补谤:听2017-21
Participants:聽Mohammad Matar, Shane Frazier, Jorge Osio-Norgaard, Anastasia Aday, Nathan Deanda, El Delesky
Primary Investigator:聽Wil Srubar III
Summary:聽In this study the effects of biomimetic antifreeze polymers聽were investigated for their use as an alternative to traditional air entraining agents in concrete exposed to freeze-thaw conditions in accordance with ASTM C666. Compression testing according to ASTM C39 was conducted to examine the changes in strength of polymer-modified concrete as compared to concrete containing a commercial air entraining agent. Various molecular weights and concentrations were explored in concrete samples containing polymer modifications. Results indicate that biomimetic antifreeze polymers do not significantly affect the compressive strength of concrete and may provide an alternative to traditional air entraining agents at lower concentrations than their air entraining admixture counterparts.
Image at Right:
- Specimens with entrained air after freezing and thawing
- Test specimen undergoing compression test
- Specimens with biomimetic antifreeze polymer after freezing and thawing
