Use of Sewage Sludge as Raw Material in the Manufacture of Roofs

DOI

10.2991/cmes-15.2015.9How to use a DOI?

Keywords

sewage sludge - raw material - roof manufacture.

Abstract

The present study verifiesthe possibility of incorporating sewage sludgein the production ofceramic massfor ceramicroof tiles. Domestic sewage sludge and clay from ceramic industries of the northeastregion of Brazil were used. The raw materials were chemically and mineralogically characterized. Seven hundred and fifty tiles were manufactured using different concentrations of sludge (2%, 4%, 6%, 8% and 10% of sludge dry mass). The high amount of organic material (71%) from the sludge shows itself as being main factor onaffecting the quality of roof tiles. The increaseddosage of sludge implies a linear tendency of increased absorption and decreasedload rupture on flexion.Results haveshown the possibility of using nearly 4% of sludge (dry matter) on ceramic mass to manufacture roof tiles with no interferencein itsfinal product properties,in compliancewith current international standards.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Durante Ingunza
AU  - Maria Del Pilar
AU  - Lima Andressa Dantas
AU  - Nascimento Rubens Maribondo
PY  - 2015/04
DA  - 2015/04
TI  - Use of Sewage Sludge as Raw Material in the Manufacture of Roofs
BT  - Proceedings of the 2nd International Conference on Civil, Materials and Environmental Sciences
PB  - Atlantis Press
SP  - 31
EP  - 33
SN  - 2352-5401
UR  - https://doi.org/10.2991/cmes-15.2015.9
DO  - 10.2991/cmes-15.2015.9
ID  - Ingunza2015/04
ER  -