• Abhishek Sandip Karambelkar
• Karvekar Arvind Vishnu

Day by day construction industry is growing. In construction industry concrete is prime element that is used in most of regions due to its properties and durability. Concrete made up with mainly three elements are Cement , Sand and Aggregate. In those one of the important material is sand , now a days sand ( Well Graded River Sand ) is most difficult part to get it. To overcome that most researches are done and lots are in process. In this research Fibres are added in concrete in mono and in hybrid way to recover strength losses from addition of waste foundry sand in concrete. In this paper river sand is partially replaced with Waste Foundry Sand. Foundry Industries are also growing, so alternatively foundry waste generation is also increased. That foundry waste is called Waste Foundry Sand. That Waste Foundry Sand is also has three quality classifications. Foundry Sand is mainly generated by moulds or it is by product of burning of Coal Sand. Foundry Industries are mainly divided into three types. First class Foundry Industry uses coal sand for casting after that its waste sand is used by second class foundry industry to cast materials. Later on that class II industry waste sand is used by third class foundry industry to produce casting and then class III industry waste is then called as Waste Foundry Sand. That waste is mainly used for Landfill purpose. That sand is used to in this research, to partially replace the river sand in concrete. Fibres are one of the most convenient mode by which strength of concrete can be increased. In this research paper Steel and Galvanized Iron fibres are reinforced in concrete. Fibres in concrete acts as like root of tree adheres soil. Different types of fibres increases different types of strengths. In this research paper 1.5 % of volume of concrete ,fibres are added.

Fibre Reinforced Concrete, Waste Foundry Sand ( WFS ).

"MECHANICAL PROPERTIES OF FIBRE REINFORCED CONCRETE WITH PARTIAL REPLACEMENT OF RIVER-SAND BY FOUNDRY WASTE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 3, page no.b730-b734, March-2022, Available :http://www.jetir.org/papers/JETIR2203192.pdf

"MECHANICAL PROPERTIES OF FIBRE REINFORCED CONCRETE WITH PARTIAL REPLACEMENT OF RIVER-SAND BY FOUNDRY WASTE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 3, page no. ppb730-b734, March-2022, Available at : http://www.jetir.org/papers/JETIR2203192.pdf