A Study of Strength parameters of Structural Concrete Elements Using Foundry Sand
The over exploitation of non-renewable materials is becoming a threat and therefore it is necessary to seek the possibility of recycling them, once their durability is expired. The recycled materials can be used effectively in architectural and civil engineering fields. They can stand close to the concept of green concrete which is in compatible with the environment. Foundry sand from casting industries is a waste material which is dumped extensively and in this study an attempt has been made to evaluate the usage of this waste material in concrete. The constant depletion of sand beds at all major sources of availability is a major concern and thus efforts are taken in order to replace sand in construction activities. In this study, effect of foundry sand as fine aggregate replacement on the compressive strength, flexural strength and split tensile strength of concrete with a mix proportion of 1: 1.28: 2.56: 0.45 was investigated at different limited curing periods (7 days and 28 days). The percentage of foundry sand used for replacement were 10%, 20%, 30%, 40%, 50%, 75% and 100% by weight of fine aggregate. Test showed impressive results, showing capability of foundry sand for being a component in concrete for imparting strength. Making concrete from recycled materials saves energy and conserves resources which lead to a safe sustainable environment.
2. T R Naik and S S Singh, Permeability of Flowable Slurry Materials Containing Foundry Sand and Fly Ash, Journal Of Geotechnical and Geoenvironmental Engineering-ASCE, 123(5), 1997, 446-452.
3. Tikalsky, J. Paul, Smith, Earl, Regan and W. Raymond, Proportioning Spent Casting Sand in Controlled Low-Strength Materials, ACI Material Journal, 95(6), 1998, 740-746.
4. Tikalsky, J. Paul, Smith, Earl, Regan and W. Raymond, Properties of Controlled Low Strength Materials Containing Foundry Sand, ACI Material Journal, 97, 2000, 698-702.
5. T R Naik, and S S Singh, Performance and Leaching Assesment of Flowable Slurry, Journal of Environmental Engineering, 127(4), 2001, 359 – 368.
6. T R Naik, Kraus, N. Rudolph, Chun Yoon-moon, Ramme, W. Bruce and Singh S. Shiw, Properties of Field Manufactured Cast-Concrete Products Utilizing Recycled Materials, Journal of Materials in Civil Engineering-ASCE, 15(4), 2003, 400-407.
7. T R Naik, Kraus, N. Rudolph, Chun Yoon-moon, Ramme, W. Bruce and Siddique Rafat, Precast Concrete Products Using Industrial By-Products, ACI Materials Journal, 101 (3), 2004, 199- 206.
8. R. Siddiquea, G. de Schutterb, and A. Noumowec, Effect of used foundry sand on the mechanical properties of concrete, Constr. Build. Mater, 23, 1999, 976-980.
9. Abichou T Benson, C Edil, Database on Beneficial Reuse of Foundry Byproducts,Recycled Materials in Geotechnical Applications Geotech. ASCE, Spec.Publ.,79, 1992, 210 – 223.