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International Conference on Green Buildings and Optimization Design (GBOD 2012)
Xie Hao
Xie Hao
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ASME Press
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The paper presented the evaluation of properties waste paper sludge aggregate (WPSAA) as replacement of normal coarse aggregate in concrete. The mining activity of normal coarse aggregate was produced a lot of problem such as noise pollution, air pollution and landslide. In addition, the high human population were created a lot of waste material such as fly ash, waste paper sludge ash and bottom ash. Other issues, the area of waste material for landfill was limited. With a lot of problem existed, Waste Paper Sludge Ash (WPSA) from newspaper industry was designed to replace the normal coarse aggregate. First part, the WPSA was measured for the chemical properties and physical properties. Then, The WPSA was manufactured by using ratio WPSA to water (2:1), mixed, pelletized, dried and lastly sintered in the oven for 1 day with 200°C. The physical and mechanical of the WPSA was determined. From the physical result, the WPSAA was categorised as high water absorption aggregate and showed WPSAA as lightweight aggregate. For further experiment, the compressive strength of concrete with the proportion from 0.5 % until 4.0 % was determined. The result shown the mix with 2.0 % WPSAA was classified as appropriate percentage to generate better compressive strength with low cost production.

Properties of Waste Paper Sludge Ash (WPSA)
Production of WPSAA
Material and Testing
Result and Discussion
Conclusion and Discussion
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