Effect of Waste Sludge on Compaction Behaviour of Fly Ash

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2014 by IJETT Journal
Volume-8 Number-3                          
Year of Publication : 2014
Authors : Dr. Malik Shoeb Ahmad


Dr. Malik Shoeb Ahmad."Effect of Waste Sludge on Compaction Behaviour of Fly Ash", International Journal of Engineering Trends and Technology(IJETT), 8(3),130-136 February 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group


Standard Proctor compaction tests were carried out keeping (i) 30%-50% waste sludge and 70%-50% fly ash (ii) use of fresh/remolded samples; and (iii) preconditioning period as variable parameters. The value of maximum dry density (MDD) of mix 55%FA+45%S was observed as 13 kN/m3 which is about 40% more than MDD value (9.30 kN/m3) of fly ash under fresh condition. However, under remolded condition the mix 60%FA+40%S gives optimum value of MDD (13.40 kN/m3) which is 31% more than the MDD value (10.20 kN/m3) of fly ash under similar test condition. For the estimation of MDD of fly ash and fly ash-waste sludge, a linear empirical model has been chosen in terms of optimum moisture content (OMC) and specific gravity (G). The proposed method has been validated for Harduaganj fly ash and fly ash-waste sludge mixes.


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Standard Proctor Compaction Test, Waste Sludge; Preconditioning Period, Maximum Dry Density, Optimum Moisture Content, Empirical Model.