Physico-mechanical properties and leachate analysis of clay fired bricks incorporated with cigarette butts

Abdul Kadir, Aeslina and Mohajerani, Abbas (2008) Physico-mechanical properties and leachate analysis of clay fired bricks incorporated with cigarette butts. In: International Conference on Environment (ICENV2008), 15-17 Disember 2008, Pulau Pinang.

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Abstract

Although small in size, indiscriminate littering of cigarette butts (CBs) can cause serious environmental impact. Several trillion cigarettes produced worldwide annually lead to thousands of kilograms of toxic waste. CBs accumulate in the environment due to the poor biodegradability of the cellulose acetate filters and, in doing so, they have become the most common litter item on our planet. This paper presents some of the results from a continuing study on recycling CBs into fired clay bricks. Physico-mechanical properties of fired clay bricks manufactured with different percentages of CBs (2.5%, 5% and 10%) and also of control brick samples are reported and discussed. Furthermore, leaching of heavy metals from the fabricated clay bricks was tested to investigate whether the leachate values exceed the regulatory standards. The results show that the density of fired bricks decreased by up to 30 % when CBs were incorporated into the raw materials. The compressive strength of bricks tested were 12.57, 5.22 and 3.00 MPa for 2.5, 5.0 and 10 % CB content respectively. The leachate results revealed trace amounts of heavy metals.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:cigarette butts; recycling waste; fired clay bricks; light bricks; leachate; thermal conductivity
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Faculty of Civil and Environmental Engineering > Department of Water and Environment Engineering
ID Code:2235
Deposited By:Normajihan Abd. Rahman
Deposited On:28 Mar 2012 16:03
Last Modified:28 Mar 2012 16:03

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