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Utilization of Cement Incorporated with Water Treatment Sludge

Journal: Jordan Journal of Civil Engineering (JJCE) (Vol.5, No. 2)

Publication Date:

Authors : ; ; ;

Page : 268-277

Keywords : Cement; Tiles; Water treatment sludge; Breaking strength; Absorption; Heavy metals;

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Abstract

This study investigated the use of water treatment sludge to replace cement in the production of paving tiles for external use. The study utilized sludge-cement replacement percentages of 10%, 20%, 30%, 40% and 50%. Produced tiles were tested for water absorption and breaking (bending) strength. Leaching of sludge metals from tiles was assessed using TCLP. The study showed that all produced tiles exhibited a water absorption ratio of around 10%. The study concluded that produced tiles, except for 50% sludge-cement replacement, comply with the breaking strength requirements of 2.8 MPa for tiles for external use. The TCLP results indicated that metal leaching from tiles is negligible.

Last modified: 2014-10-11 01:51:59