Comparative Study of Self-Compacting Concrete with Manufactured and Dune Sand

Sand is an inert element essential in the composition of concrete; its use ensures granular continuity between the cement and gravel for better cohesion of concrete. This paper presents the results of a study that investigated the influence of sand quality on the properties of fresh and hardened SCC...

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Bibliographic Details
Published in:土木工程与建筑：英文版 2012, Vol.6 (10), p.1429-1434
Main Author: Leila Zeghichi Zeid Benghazi Laid Baali
Format: Article
Language:English
Subjects:
不规则形状
制造
力学性能
沙丘砂
流变学特性
细度模数
自密实混凝土
高比表面积
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Summary:Sand is an inert element essential in the composition of concrete; its use ensures granular continuity between the cement and gravel for better cohesion of concrete. This paper presents the results of a study that investigated the influence of sand quality on the properties of fresh and hardened SCC （self-compacting concrete）. The dune sands are very fine materials characterized by a high intergranular porosity, high surface area and low fineness modulus; on the other hand crushed （manufactured） sand has a high rate into thin and irregular shapes which influence the workability of concrete. The amount of dune sand varies from （0%, 50% to 100%） by weight of fine aggregates. The results show that the rheological properties favour the use of dune sands; however the mechanical properties support the use of crushed sand.
ISSN:1934-7359
1934-7367