Properties of concrete containing municipal sludge of wastewater treatment plant

Sludge generation continues to rise as the population grows. Dry sludge is typically piled up on a landfill, causing contamination in the environment. As a result, research into alternate uses for dry sludge is critical. The properties of concrete mixtures including various percentages of dry sludge...

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Bibliographic Details
Main Authors: Zuhair, Huda, Salman, Huda M., Muslim, Ethar A.
Format: Conference Proceeding
Language:English
Subjects:
Compressive strength
Concrete properties
Mixtures
Sludge drying
Wastewater treatment
Water-cement ratio
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Summary:Sludge generation continues to rise as the population grows. Dry sludge is typically piled up on a landfill, causing contamination in the environment. As a result, research into alternate uses for dry sludge is critical. The properties of concrete mixtures including various percentages of dry sludge from Baghdad’s Al-Rustamiah wastewater treatment plant, as well as their impact on compressive strength, were investigated. For samples preparation, a water to cement ratio (w/c) of 0.67 and 0.8 was used. The results indicated a significant decrease in concrete compressive strength as sludge replacement increased. A comparison of the concrete containing sludge to the control mix revealed that dry wastewater sludge could be used as a partial sand replacement in concrete mixtures with a W/C of 0.67 and an optimal ratio of less than 3%. Dry wastewater sludge concrete can be utilized to manufacture bricks where high strength is not required.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0135992