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Characteristics of workability, strength, and ultrasonic
pulse velocity of SCC containing zeolite and slag
Ibrahim Türkmen, Ali Öz and Abdulkadir
Cüneyt Aydin*
Department of Civil Engineering, Faculty Engineering,
Atatürk University, 25240- Erzurum, Turkey.
*Corresponding author. E-mail:
acaydin@atauni.edu.tr.
Accepted 2 July, 2010 |
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This paper reports the results of the study conducted to
evaluate the influence of natural zeolite (NZ) and blast
furnace slag (BFS) and both NZ + BFS on the ultrasonic pulse
velocity (UPV), compressive strength, flexure strength and
density of self-compacting concrete (SCC). In addition, the
relationship between UPV and compressive strength was
evaluated. NZ, BFS and both NZ+BFS were used as the mineral
admixtures in replacement of Portland cement. It was
possible to produce SCC using 10%NZ, 10%, 20%, 30% BFS and
10% NZ+20% BFS with a slump flow in the range of 500 to 700
mm. Compressive strength, flexure strength and UPV were
determined at 3, 7, 28 and 90-day. Finally, it was observed
that the specimens (with 10% BFS) for 90-day had the highest
compressive strength and UPV. It was observed that the
specimens (with 20% BFS) for 90-day had the highest flexure
strength. The relationship between UPV and compressive
strength was exponential for NZ, BFS and NZ+BFS. The
relationship between flexure strength and compressive
strength was logarithmic for NZ, BFS and NZ+BFS. However,
the constants in the models were different for each mineral
admixture and each level replacement of PC.
Key
words:
Self-compacting concrete, ultrasonic pulse velocity,
strength, natural zeolite, blast furnace slag.
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