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[46980] Artykuł: Effect of Ground Granulated Blast Furnace Slag and Polymer Microspheres on Impermeability and Freeze-Thaw Resistance of ConcreteCzasopismo: Procedia Engineering Tom: 161, Strony: 79-84ISSN: 1877-7058 Wydawca: ELSEVIER SCIENCE BV, SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS Opublikowano: 2016 Seria wydawnicza: Procedia Engineering Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 15 Klasyfikacja Web of Science: Proceedings Paper DOI Web of Science Keywords: concrete  freeze-thaw resistance  air entrainment  polymer microspheres  permeability  absorption  |
The primary objective of this study was to assess freeze-thaw resistance of concrete whose structure was modified by varying the water/binder ratio and ground granulated blast furnace slag content, and by air entrainment. The innovative method of the polymer microspheres-based air entrainment was used to provide a stable pore structure.
Test results show that the method is very effective both in providing adequate air entrainment and in improving freeze-thaw resistance of concrete. All air-entrained concrete specimens with polymer microspheres (the spacing factor of 0.25 mm) had a good resistance to the action of frost, regardless of the W/S ratio and the slag cement content. (C) 2016 The Authors. Published by Elsevier Ltd.