Use of foundry waste as aggregatein semi-dry precast concrete mixtures to produce paving blocks
International Journal of Development Research
Use of foundry waste as aggregatein semi-dry precast concrete mixtures to produce paving blocks
Received 13th March, 2020; Received in revised form 27th May, 2020; Accepted 11th June, 2020; Published online 24th July, 2020
Copyright © 2020, Leandro Moosher et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The foundry waste generated during the production of cast iron has been studied for being used as a byproduct in civil construction industry. This study evaluated the feasibility of using two types of foundry waste— phenolic sand (PSW) and green sand (GSW)—as partial replacement material of natural fine aggregate to offer technical and environmental advantages.The foundry waste was mixed before using in order to obtain one final product with 60%wt of PSW and 40%wt of GSW. The study evaluated the effect of the foundry waste mix (FWM)as a partial replacement of natural fine aggregate in various percentages (0, 25 and 50%wt)at industrial scale, on the concrete blocks’ properties such as mechanical (compressive strength, water absorption, abrasion resistance, porosity index) and structural morphology. Environmental analysis of a concrete block was also assessed. The results with 25% wtreplacement showed satisfying results in compressive strength and abrasion resistance. Nevertheless, the same samples were environmentally classified as Class II A (Not Inert).
