Abstract
This work assess the potentiality of tannery buffing chromium-containing solid waste as supplement material for concrete work in the construction industry. The parameters determined to characterize the tannery buffing solid wastes are pH (7.2), moisture content (0.53 %), carbon content (0.2 %), volatile content (0.18 %), and total chromium (28 mg/kg). The parameters used to compare the performance of the constructed concrete block with the standard concrete blocks are density, compressive strength, and water absorption. The experimental results confirmed that the density, compressive strength, and water absorption of the constructed concrete blocks are in the range of 1003.33 – 1226.7 kg/m 3 , 5.33 – 8.62 N/mm 2 , and 3–4 %, respectively which are comparable with the density (1383.3 kg/m 3 ), compressive strength (7.67 N/mm 2 ), and water absorption (4 %) of the standard concrete block. These results indicating that the quality of concrete blocks constructed using tannery buffing solid waste is comparable with standard concrete blocks and proved as more promising supplement material for sand in constructing concrete blocks.
Published Version
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