Properties and environmental impact from mosaic sludge industry incorporated into fired clay bricks

Brick is one of the most common masonry units used as building material. Due to the demand recently, different types of waste materials have been investigated to be incorporated into bricks. The utilization of these waste materials in fired clay bricks usually has positive effects on the properties such as lightweight bricks with improved shrinkage, porosity, and strength. The main objective of this study is to focus on the properties and environmental impact of the mosaic sludge incorporated into fired clay bricks. The characteristics of raw materials obtained by using the XRay Fluorescence Spectrometer showed that the chemical composition of the raw materials of clay soil and mosaic sludge was high with silicon dioxide and aluminium oxide and with the same chemical composition BS and PS are suitable to replace clay soil as raw materials. The recommended percentage of BS and PS incorporation was up to 30% with better physical and mechanical properties. The results showed that the utilization of BS and PS brick obtained higher compressive strength up to 25 N/mm2 and low initial rate of suction under the limit of 5 g/mm2. The leachability tests such as Toxicity Characteristic Leaching Procedure (TCLP), Synthetic Precipitation Leaching Procedure (SPLP) and Static Leachate Procedure (SLT) were conducted to determine the results which complied with the United State Environment Protection Agency (USEPA) and Environment Protection Agency Victoria (EPAV). As for the indoor air quality, BS sludge and PS sludge could be incorporated up to 30% in the fired clay bricks for good physical and mechanical properties that complied standard requirements for heavy metals with better indoor air quality based on the Industry Codes of Practice on Indoor Air Quality (ICOPIAQ) standards. Therefore, BS and PS wastes can be an alternative low cost material that provides an environmentally friendly disposal method.

Name dc:type.qualificationname

mphil

Level dc:type.qualificationlevel

masters

Grantor dc:publisher.institution

Universiti Tun Hussein Onn Malaysia

Year dc:date.issued

2016

Author dc:creator

• Abdul Rahim, Ahmad Shayuti

• TA401-492 Materials of engineering and construction. Mechanics of materials

Language dc:language

en