Freeze-Thaw Resistance of Vibrated SCC and Near-SCC

Author(s): Ahmad A. Ghadban, Mohammed Albahttiti, Kyle A. Riding, David A. Lange
Paper category: Conference
Book Title: 8th International RILEM Symposium on Self-Compacting Concrete - SCC 2016
Editor: Kamal H. Khayat
ISBN: 978-2-35158-156-8
e-ISBN: 978-2-35158-157-5
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 377-386
Total Pages: 10
Language: English

Abstract: Self-consolidating concrete (SCC) offers advantages of high workability and attractive rheological properties. The properties of SCC enhance its flowability and allow it to fill all voids in the form without the need for consolidation or vibration. However, some industries resort to vibration in order to get rid of bug holes and produce an aesthetically pleasing concrete surface. Vibrating SCC can result in air loss and alteration of air structure that might in turn affect freeze-thaw durability. The effect of vibration on the air structure is a function of vibration duration and rheological properties of SCC. This research studied the effects of vibration on the freeze-thaw resistance of SCC and near-SCC. Three different admixture’s combinations, two different vibration durations and four different rheological properties were examined in this study. Results showed that the impact of the rheological properties of SCC on the freeze-thaw resistance was more apparent than the impact of vibration duration. Moreover, the type of high range water reducer (HRWR) can significantly affect the freeze-thaw performance of vibrated SCC and near-SCC.

Online publication: 2016
Publication Type: full_text
Public price (Euros): 0.00