Possible utilization of cigarette butts in light-weight fired clay bricks

Abdul Kadir, A and Mohajerani, A 2008, 'Possible utilization of cigarette butts in light-weight fired clay bricks', in E Juda (ed.) Proceedings of World Academy on Science, Engineering and Technology, Turkey, 21 - 23 November 2008, pp. 153-157.


Document type: Conference Paper
Collection: Conference Papers

Title Possible utilization of cigarette butts in light-weight fired clay bricks
Author(s) Abdul Kadir, A
Mohajerani, A
Year 2008
Conference name World Congree on Science, Engineering and Technology
Conference location Turkey
Conference dates 21 - 23 November 2008
Proceedings title Proceedings of World Academy on Science, Engineering and Technology
Editor(s) E Juda
Publisher World Academy of Science, Engineering and Technology
Place of publication Turkey
Start page 153
End page 157
Total pages 5
Abstract Over a million tonnes of cigarette butts (CBs) are produced worldwide annually. These CBs accumulate in the environment due to the poor biodegradability of the cellulose acetate filters and pose a serious environmental risk. This paper presents some of the results from a continuing study on recycling CBs into fired clay bricks. Properties including compressive strength, flexural strength, density, water absorption and thermal conductivity of fired clay bricks are reported and discussed. Furthermore, leaching of heavy metals from the manufactured clay bricks was tested. The results show that the density of fired bricks was reduced by about 8 - 30 %, depending on the percentage of CBs incorporated into the raw materials. The compressive strength of bricks tested was 12.57, 5.22 and 3.00 MPa for 2.5, 5.0 and 10 % CB content respectively. Water absorption and initial rate of absorption values increased as density, and hence porosity, of bricks decreased with increasing CB volume. The leaching test results revealed trace amounts of heavy metals.
Subjects Environmental Technologies
Construction Materials
Keyword(s) Cigarette Butts
Fired clay bricks
light bricks
recycling waste
thermal conductivity
ISSN 2070-3740
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