COMPARISON OF MEASURED AND PRESCRIBED K-VALUES FOR THE EQUIVALENT PERFORMANCE OF FLY ASH CONCRETE

Author(s): T. Altug Söylev
Paper category: Proceedings
Book title: proceedings of the International RILEM Conference on Materials, Systems and Structures in Civil Engineering Conference segment on Service Life of Cement-Based Materials and Structures
Editor(s): Miguel Azenha, Ivan Gabrijel, Dirk Schlicke, Terje Kanstad and Ole Mejlhede Jensen
ISBN:978-2-35158-170-4
e-ISBN: 978-2-35158-173-5
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 204-211
Total Pages: 8
Language : English

Abstract: In the present study cement efficiency factor (k-value) for a Class F fly ash was determined in
control and fly ash concretes with three different water/binder ratios (w/c = 0.40, 0.50 and
0.60). Fly ash replacement ratio was kept at 20% by mass of cement. The determination of k-
value was based on compressive strength at 28 days age. The obtained k-values were
compared to the prescribed k-value (k = 0.4) of EN 206 Standard with the compressive
strength test (EN 12390-3). Water permeability specimens are still under testing. The results
indicated that the prescribed k-value is unsafe for lower w/c ratios. Measured k-value can help
to obtain safer values

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