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Effect of Addition of Combination of Admixtures on the Properties of Self Compacting Concrete Subjected to Sulphate Attack

Shanthappa B.C*, Prahallada M.C.**, Prakash K.B.***

* Professor, Department of Civil Engineering, S. J. M. Institute of Technology, Chitradurga, Karnataka, India.

** Professor, Department of Civil Engineering, Christ University Faculty of Engineering, Bangalore, Karnataka, India.

*** Principal, Government College of Engineering, Devagiri, Karnataka, India.

Periodicity:September - November'2012
DOI : https://doi.org/10.26634/jce.2.4.2032

Abstract

This paper presents an experimental investigation on the effect of acid attack on the properties of SCC produced by the combination of admixtures such as (Superplasticizer + Viscosity modifying admixture + Air entraining agent + Accelerator), (Superplasticizer + Viscosity modifying admixture + Air entraining agent + Retarder), (Superplasticizer + Viscosity modifying admixture + Air entraining agent + Water proofing compound ) and (Superlasticizer + Viscosity modifying admixture + Air entraining agent + Shrinkage reducing admixture). The concrete testing specimens was prepared by a mix proportion 1:2.7:6.1:5.1 with cement: fly ash: sand: coarse aggregate with a water/binder ratio of 0.38. Specimens after 28 days of curing were immersed in sodium sulphate solution of 5% and 10% concentrations for 90 days. After 90 days of immersion, the specimens were removed from sulphate media, weighed accurately and tested for their respective strengths. SCC produced with above combination of admixtures show better resistance to sulphate attack as compared to SCC produced with combination of admixtures (SP+VMA) only.

Keywords

Self compacting concrete, Sulphate attack, Superplasticizer, Viscosity modifying admixture, Air entraining agent, Accelerator, Retarder, Water proofing compound, Shrinkage reducing admixture.

How to Cite this Article?

Shanthappa,, B.C., Prahallada,, M.C., and Prakash, K.B. (2012). Effect Of Addition Of Combination Of Admixtures On The Properties Of Self Compacting Concrete Subjected To Sulphate Attack. i-manager’s Journal on Civil Engineering, 2(4), 34-39. https://doi.org/10.26634/jce.2.4.2032

References

[1].Method of test for splitting tensile strength of concrete, IS 5816-1999, Bureau of Indian Standards, New Delhi

[2].Method of test for strength of concrete, IS 516-1959, Bureau of Indian Standards, New Delhi.

[3].Specifications and guidelines of self compacting concrete (2002), EFNARC.

[4].Specifications for 43 grade ordinary Portland cement (first revision), IS 8112-1989, Bureau of Indian Standards, New Delhi.

[5].Specifications for coarse & fine aggregates from natural sources for concrete, IS 383-1970, Bureau of Indian Standards, New Delhi.

[6].Hajime Okamura (1997). Self Compacting High-Performance Concrete, Concrete International, pp.50-54.

[7].Samir Surlaker (2002). Self-Compacting Concrete, The Indian Concrete Journal, pp 5-9.

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Effect of Addition of Combination of Admixtures on the Properties of Self Compacting Concrete Subjected to Sulphate Attack

Abstract

Keywords

How to Cite this Article?

References

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