EXPERIMENTAL INVESTIGATION ON CONCRETE BY REPLACING CRUSHER DUST AS FINE AGGREGATE AND GRANITE CHIPS AS COARSE AGGREGATE

K. Hanumanthu, SS.Manugula, Prathik Kulkarni

Abstract: In this present work we identified and investigated the use of crusher dust and granite floor slab chips in concrete as an alternative fine aggregate and coarse aggregate respectively, the tests were conducted on standard concrete cubes (150 mm x 150 mm x 150 mm), cylinders (150 mm x 300 mm) and prisms (100 mm x 100 mm x 500 mm). Tests on the physical properties of crusher dust, granite chips and its influence on the strength of fresh and hardened state, along with a comparative study with the concrete of river sand are made. The properties investigated were specific gravity, fineness modulus, water absorption, free surface moisture, bulk density and grading zone. Tests were conducted on 6 cubes, 6 cylinders and 6 prisms for M20 grade mix design with sand and crusher dust as fine aggregates, granite metal and granite floor slab chips as coarse aggregates. The strength parameters compressive strength, Split-Tensile strength and flexural strength were compared at 7 days and 28 days respectively. Mix design procedure in accordance with IS 10262-2009, IS 456-2000 and Sp 23-1982 using 20mm coarse aggregate was adopted for investigation. The investigation indicates that crushed stone dust has vast potential as fine aggregate in concrete construction. Crusher dust not only reduces the cost of construction but also helps reduce the impact on environment by consuming the material hitherto considered as a waste product with few applications

Keywords: Crusher Dust, Granite Floor Slab Chips, Concrete Mix

DOI: https://doi.org/10.15623/ijret.2016.0503013