Author : Mr. Aasif M. Baig 1
Date of Publication :8th March 2017
Abstract: The degradation of concrete sewer pipes by sulfuric acid attack is a problem of global scope, resulting in substantial economic losses each year. Waste Foundry Sand (WFS), offers a range of potential improvement mechanisms, used at various dosages to enhance the resistance of concrete made with Pozzolana Portland Cement to chemical sulfuric acid attack with variations in Concentration. The aim of this study is to observe the concrete resistance towards acid attack. The resistance to sulfuric acid of concrete specimens incorporating the Waste Foundry Sand was measured and compared to that of control specimen for both M20 and M40 grades. From the experimental results it is inferred that partial replacement of Waste foundry sand with Fine aggregate in concrete enhance the compressive strength of concrete specimen immersed for 7, 14 and 28 days in H2SO4 solution having concentration of 10%, 20% and 30% (by volume) with pH Value 1, compared with conventional Concrete. It has been observed that Waste foundry sand offers good resistance to acid effect with lesser loss in workability, particularly in higher grade of concrete as compared to lower grade. The mix with 15% waste foundry sand offered comparatively better solutions insisting the concrete modified with the same can be recommended for making good and acid resisting concrete. This study is very much beneficial since a sulfuric acid resistant concrete has been developed using Waste foundry sand as a substitute material to fine aggregate.
Reference :
-
- M Sowmya and J D Chaitanya Kumar, “Mixing of Waste Foundry Sand in Concrete”, International Journal of Engineering and Science & Technology, ISSN 2319- 5991,Vol. 4, No. 4, November 2015
- S.DurgaDevi1, Dr.P.Chandrasekaran, “Mechanical and Durability Properties of Waste Foundry Sand Concrete with Carbon Fibres”, International Journal of Science and Engineering Research (IJ0SER), Vol 3 Issue 4 April -2015, 3221 5687, (P) 3221 568X
- C. Sudalai Muthum, N.Sakthieswaran, G.Shiny Brintha, O.Ganesh Babu, “Experimental Investigation of Acid Attack on Concrete with Marble Powder and Green Sand as Fine Aggregate Replacement”, International Journal for Research in Applied Science & Engineering Technology, Volume 4 Issue V, pp 656-657May 2016.
- Priyanka M, Sakthieswaran N, “Suitability of Natural Rubber Latex and Waste Foundry Sand in Cement Concrete”, J o u r n a l o f A d v a n c e s i n C h e m i s t r y, V o l u m e 1 2 N u m b e r 1 0, I S S N 2 3 2 1 - 8 0 7 X,pp 4402-4407, October 2016.
- Emmanuel K. Attiogbe and Sami H. Rizkalla., “Response of Concrete to Sulfuric Acid Attack”, ACI Materials Journal, Title no. 85-M46, pp- 481-488, November-December 1988.