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Authors

Karima Gadri Laboratoire de Recherche en Génie Civil, Université Mohamed Khider. BP 145 RP 07000 Biskra, Algérie Author
Abdelhamid Guettala Laboratoire de Recherche en Génie Civil, Université Mohamed Khider. BP 145 RP 07000 Biskra, Algérie Author

DOI:

https://doi.org/10.69717/jaest.v3.i1.48

Keywords:

Sand concrete, Crushed sand, Substrate, Repair concrete, Elastic modulus, Bond strength

Abstract

In this paper, a particular importance is given to the sand concrete as a new repairmaterial. A study is conducted to evaluate its mechanical and physical properties. By targeting thecompactness and workability, three crushed sand concrete series were made from a fixed choiceof the cement content. Once the sand concrete intended for repair is chosen; its characterization isrealized by mechanical and physical tests, namely compression and splitting tensile, measurementof modulus of elasticity and the shrinkage. A repair simulation is applied on half-cylinders ofordinary concrete with two ranges of strength, (BO40) and (BO25). The substrates are preparedwith two surfaces of different textures: roughness (RIG) and surface with drilled holes (PER). Thebond strength and its quality are determined by a splitting tensile test. The result showed asignificant improvement in mechanical strength, a low elastic modulus of 21315 MPa and amoderate shrinkage of 426μm/m after 28 days. Similarly, significant bond strength is recordedbetween sand concrete and ordinary concrete, reflecting a good adhesion with the substrate

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Published

2017-05-07

Issue

Section

Research Paper

How to Cite

Study of the adaptation of the sand concrete as repair material associated with an ordinary concrete substrate. (2017). Journal of Applied Engineering Science & Technology, 3(1), 8. https://doi.org/10.69717/jaest.v3.i1.48

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