This paper describes about the investigation undertaken to examine the suitability of recycled concrete as a substitute for fine aggregate. Recycled concrete (artificial sand) is used for 40% of fine aggregate and natural sand is retained for the remaining part. HPC of M60 grade is attempted, with different replacement levels of cement with Fumed Silica. Maximum 28-day compressive strength of 68.26MPa with 1.0 percent replacement of Cement with Fumed Silica was observed for a water-binder ratio of 0.33. Acid resistance and Chloride impermeability increases with increase of Fumed Silica content. Tests on sorptivity, saturated water absorption, coefficient of water absorption and porosity were also conducted.

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Strength and Durability of High Performance Concrete Using Artificial Sand

M. Kalaiarasu*, K. Subramanian**
*Selection Grade Lecturer,Department of Civil Engineering,Coimbatore Institute of Technology,Coimbatore-641014,Email : kalai_citcivil@yahoo.com
**Professor and Head of the Department of Civil Engineering,Coimbatore Institute of Technology,Coimbatore-641014,Email : drkscit@rediffmail.com
Periodicity:February - April'2006
DOI : https://doi.org/10.26634/jfet.1.3.985

Abstract

This paper describes about the investigation undertaken to examine the suitability of recycled concrete as a substitute for fine aggregate. Recycled concrete (artificial sand) is used for 40% of fine aggregate and natural sand is retained for the remaining part. HPC of M60 grade is attempted, with different replacement levels of cement with Fumed Silica. Maximum 28-day compressive strength of 68.26MPa with 1.0 percent replacement of Cement with Fumed Silica was observed for a water-binder ratio of 0.33. Acid resistance and Chloride impermeability increases with increase of Fumed Silica content. Tests on sorptivity, saturated water absorption, coefficient of water absorption and porosity were also conducted.

Keywords

High Performance Concrete, Fumed Silica, Recycled Aggregate, Durability, Micro Structure Property.

How to Cite this Article?

M. Kalaiarasu and K. Subramanian (2006). Strength and Durability of High Performance Concrete Using Artificial Sand. i-manager’s Journal on Future Engineering and Technology, 1(3), 88-92. https://doi.org/10.26634/jfet.1.3.985

References

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3.SARKHEL,A.C. High performance concrete: a broad profile, Proceedings of the national seminar on HPC, international centre for FRC composites and association of consulting civil engineers, 2000, Chennai.
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5.BALASUBRAMANIAN,K AND KRISHNAMOORTHY, T.S, Effect of drying procedure on the capillary suction of concrete and exchange of pore water with ethanol, Indian Concrete Journal, Feb 1997, Vol.71, No.2,pp.105-109.
6.ALLEN,C. Micro silica- A suitable performance enhancer for Asian Concrete, proceedings of TCDC International Workshop on 'Advances in HPC technology and its applications', April 16-18, 1997, SERC, Madras, India, pp.II-1 to II-13.
7.HALL, C. Water Sorptivity of mortars and concrete- A Review, Magazine of Concrete Research, 1981,Vol.41, No. 147, pp. 51-61.
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