Significance of Silica Fume in Enhancing the Quality of Concrete
Sumit Kumar1, Arvind Dewangan2, Lakhan Nagpal3, Sandeep Dhiman4

1Er. Sumit Kumar, Department of Civil Engineering, A.P. Gateway Institute of Engineering and Technology, Sonipat (Haryana), India.
2Arvind Dewangan, Associate Professor, Department of Civil Engineering, H.C.T.M. Technical Campus, Kaithal (Haryana), India.
3Er. Lakhan Nagpal, Department of Civil Engineering, A.P.-S.B. Institute of Engineering and Technology, Kaithal (Haryana), India.
4Er. Sandeep Dhiman, Department of Civil Engineering, A.P. E-MAX Engineering and Applied Research, Ambala (Haryana), India.
Manuscript received on 10 May 2013 | Revised Manuscript received on 18 May 2013 | Manuscript Published on 30 May 2013 | PP: 120-124 | Volume-2 Issue-6, May 2013 | Retrieval Number: F0814052613/13©BEIESP
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Abstract: In the Refractories world three decades ago, very few people were acquainted to silica fume and its usage. After a few years, it was used as an additive to brick. When added to high Alumina brick, mullite was formed in the matrix of the brick on firing, giving the brick good volume stability, strength and chemical resistance. When used in basic brick, high hot strengths resulted, at least at 2700oF, which was about the limit of what could be tested. At the time it was only logical that silica fume would be used in brick not castables. Brick were used for all critical applications, no one would have considered using castables. In this paper we shall discuss the manufacturing, properties of silica fume and its effect on concrete after addition. Today’s refractory castables have gone beyond having “brick-like properties” to actually out performing brick in many applications. Silica fume has played a major role in this transformation.
Keywords: Silica, Concrete, High-Performance, Smelting, Structures, Strength.

Scope of the Article: Concrete Structures