Leachability of Quarry Dust Waste Incorporated into Fired Clay Brick using TCLP

摘要

Background/Objectives: Industrial waste is defined as waste generated by industrial processes, and one of these types of industrial waste are quarry dust. Currently, stockpiles approximately 60,000 tons of waste within the quarry compound and this amount has become bigger and create space problems. The criteria of the waste are very fine dust and formed from the process of producing premix using drum mix and dryer process. Therefore, this research focused on utilizing this waste in brick manufacturing as an alternative disposal method to the quarry dust as well as complies with the environmental regulations. Methods/Statistical Analysis and Findings: This research has established that the 30% of quarry dust brick improved most properties if appropriately designed and prepared during brick manufacturing. By taking into account the effects of quarry dust to the environment, it found that incorporation of 30% quarry dust into fired clay bricks leached less heavy metal during the leachability test and complied with USEPA, EPAV, and WHO standard. Application/Improvements: The comprehensive experimental testing in this research measured the possibility of incorporating quarry dust into clay bricks. Therefore, these results indicate that incorporation of quarry dust in fired clay bricks could minimize the potential of quarry dust environmentalproblems.