The Effect of Sulfate Attack on Physical Properties of Concrete
Pooja Kanaujia1, Rajiv Banerjee2, Syed Mohammad Ashraf Husain3, Sabih Ahmed4

1Pooja Kanaujia*, M. Tech Department of Civil Engineering, Integral University, Lucknow (U.P), India.
2Rajiv Banerjee, Associate Professor, Department of Civil Engineering, Integral University, Lucknow (U.P), India.
3Syed Mohammad Ashraf Husain, Department of Civil Engineering, Kanpur (U.P) India
4Sabih Ahmed, Associate Professor, Department of Civil Engineering, Integral University Lucknow (U.P), India

Manuscript received on June 11, 2021. | Revised Manuscript received on June 18, 2021. | Manuscript published on July 30, 2021. | PP: 21-27 | Volume-10 Issue-2, July 2021. | Retrieval Number: 100.1/ijrte.B60920710221| DOI: 10.35940/ijrte.B6092.0710221
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Abstract: The effects of different concentrations of sulfate for erosion age on compressive strength, flexural strength, weight analysis, density loss and visual appearances for concrete specimens of different grades were investigated. Experimental studies were carried out on different grades of concrete (M-25, M-30 and M-35). Concrete specimens were immersed in different concentration of sulfate solution i.e. 4.0pH, 5.0pH and 6.0pH. Reduction in compressive strength loss was noticed when the grade of concrete is increased from M-25 to M35. The results of weight analysis and density analysis also confirm the compressive strength loss and flexural strength. Discoloration of concrete was noticed on the concrete blocks when left immersed in sulfate solution at 4.0pH, 5.0pH and 6.0pH for 75days and 90days. It appeared like flakes of concrete and resembled like mold growth. 
Keywords: Compressive Strength Loss, Weight Analysis, Sulfates Attack, Concrete, pH Concentration.