Innovative Ideas for Manufacturing of the Green Concrete by Utilizing the Used Foundry Sand and Pozzocrete
Dushyant R. Bhimani1, Jayeshkumar Pitroda2, Jaydev J. Bhavsar3

1Dushyant R. Bhimani, Student of final year M.E. C E & M, B.V.M. Engineering College, Vallabh Vidyanagar
2Jayeshkumar Pitroda, Assistant Professor & Research Scholar, Civil Engg Department, B.V.M. Engg. College, Vallabh Vidyanagar
3Jaydev J. Bhavsar, Associate Professor, Civil Engg Department, B.V.M. Engg. College, Vallabh Vidyanagar-Gujarat-India.
Manuscript received on March 11, 2013. | Revised Manuscript Received on March 12, 2013. | Manuscript published on March 25, 2013. | PP: 28-32 | Volume-1, Issue-6, April 2013. | Retrieval Number: F0241041613/2013©BEIESP
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Abstract: Eco-efficient and low cost concrete can be produced by blending various ratios of fine aggregate and cement with used foundry sand and Pozzocrete. As a partial replacement of cement in concrete by Pozzocrete P60, which is a processed quality assured fly ash introduces many benefits from economy, technical and environment point of view. Metal casting process generate several kinds of waste, used foundry sand is the main waste. Used foundry sand is major problem for Indian Small and medium scale Foundry. Since used foundry sand make intensive use of sand as primary direct material, the regeneration of this sand can be considered as main factor in environmental performance to achieve sustainable development. This paper presents the results obtained of the concrete having mix proportion 1:1.48:3.21 in which cement is partially replaced by Pozzocrete P60 as 30% by weight of cement; and fine aggregate is partially replaced by used foundry sand obtained from ferrous and non-ferrous metal casting industries as 10%, 30% and 50% by weight of fine aggregate. For this study, five sets of mixture proportions were made. First (A0) were the standard mix containing no Pozzocrete and no used foundry sand, with regional fine aggregate and coarse aggregate. Second mix (C0) contained 30% Pozzocrete P60 as a replacement of cement. Other mixes (C1, C2 and C3) contained Pozzocrete P60 (30%) plus used foundry sand (10%, 30% and 50%) respectively. The compressive strength of each sample is carried out at 7, 14 and 28 days. The water absorption test is also carried out at 28 days. This research was performed to achieve technical, ecological and economic benefits by utilizing the huge amounts of used foundry sand and Pozzocrete, produced every year, in India and elsewhere.
Keywords: Pozzocrete P60, used Foundry Sand, Partial replacement, Concrete, Compressive strength, Fine aggregate, Cost.