Eng_Civil_alsayed_20x - King Saud University Repository

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قفرم
1

:
جذومن

تاصخلملل

ةيثحبلا

يزيلجنإ


Title

Shrinkage of fibre and reinforced fibre concrete beams in hot
-
dry climate

Author
-
s

Alekrish, A.A., Alsayed, S.H.

Contact lnfo

salsayed1@yahoo.com

, 00966
-
1
-
4676925,
Department of Civil Engineering, King Saud
University, P.O. Box 800, Riyadh 11421, Saudi Arabia

Department

Civil Engineering

Department

Major

structures

citation

Cement and Concrete Composites


Volume 16, Issue 4, 1994, Pages 299
-
307



Year of
Publication

199
4

Publisher

Published by Elsevier Ltd.

Sponsor


Type of
Publication

Journal

ISSN

09589465

URI/DOI

doi:10.1016/0958
-
9465(94)90042
-
6

Full Text
(Yes,No)

Yes

Key words

Concrete beams; curing conditions; environment; field tests; materials; reinforcement;
shrinkage;

steel fibres; structure; testing

Abstract

The influence of steel fibre inclusion on the shrinkage of 16 full
-
size plain and reinforced
concrete beams was assessed. Shrinkage measurements, at three levels over the depth of
the beams, were carried out for
200 days. Half of the beams were cured in a controlled
laboratory environment and the other half cured under hot, dry and windy climatic
conditions. Test results show that under laboratory curing conditions adding 1% by volume
of steel fibres reduced the u
ltimate shrinkage at the top, mid
-
height, and bottom of the plain
concrete by 16, 23, and 28%, respectively. However, in the reinforced concrete beam the
presence of longitudinal reinforcement rendered it less significant. Under the uncontrolled
severe cur
ing environment, the addition of 1% by volume of fibres produced a reduction of
30% in shrinkage at the bottom level of both the plain and the reinforced concrete beams. At
the top level, however, the geometry constraints and the compaction techniques infl
uenced
the fibre contribution to shrinkage. © 1994.