FABRICATION OF UNFIRED BRICKS FROM INDUSTRIAL SCHEDULED WASTE (WWTS)
DOI:
https://doi.org/10.11113/jt.v78.8488Keywords:
Industrial waste, unfired bricks, compressive strength, thermal, leachingAbstract
Manufacturing industries produce wastes or secondary products, in which it has a direct impact to the environment. The storage of such wastes remains at the disposal would pollute the air, water resource and agricultural fields. There is a huge opportunity for recycling and it uses large quantities of wastes to minimize the environmental impact. This paper investigates the effect of utilization Wastewater Treatment sludge (WWTs) blended with Laterite Clay (LC) at 50:50 ratio to produce unfired bricks. These target materials were stabilized using Hydrated Lime (HL), Portland cement (PC) on its own and combination of Ground Granulated Blast-furnace Slag (GGBS), HL:GGBS and PC:GGBS both (50:50 and 70:30 ratio) at 10%, 20% and 30% stabilizer dosage. Compressive strength, flexural strength, thermal conductivity and toxicity characteristic leaching procedure (TCLP) test were conducted and compared with the relevant standards. It was found that it is feasible to utilize WWTs as unfired bricks from the economical and environmental point of view as it will conserve natural resource, protect the environment from waste disposal, and produce a low cost, low carbon construction components.
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