PMC/PubMed Indexed Articles
Indexed In
- Open J Gate
- The Global Impact Factor (GIF)
- Open Archive Initiative
- VieSearch
- International Society of Universal Research in Sciences
- China National Knowledge Infrastructure (CNKI)
- CiteFactor
- Scimago
- Ulrich's Periodicals Directory
- Electronic Journals Library
- RefSeek
- Directory of Research Journal Indexing (DRJI)
- Hamdard University
- EBSCO A-Z
- Publons
- Google Scholar
Useful Links
Share This Page
Journal Flyer
Open Access Journals
- Agri and Aquaculture
- Biochemistry
- Bioinformatics & Systems Biology
- Business & Management
- Chemistry
- Clinical Sciences
- Engineering
- Food & Nutrition
- General Science
- Genetics & Molecular Biology
- Immunology & Microbiology
- Medical Sciences
- Neuroscience & Psychology
- Nursing & Health Care
- Pharmaceutical Sciences
Commentary - (2021) Volume 11, Issue 3
Use of Wastewater Treatment Sludge (WTS) As Filler in Hot-Mixed Asphalt Concrete
Nilton de Souza Campelo1* and José Francisco Aleixo da Silva22Department of Civil Engineering, Superior School of Technology, State of Amazonas University, Manaus, AM, Brazil
Received: 02-Feb-2021 Published: 23-Feb-2021, DOI: 10.35248/2252-5211.21.11.399
Abstract
This research deals with the use of sludge from the Water Treatment Plant of Ponta do Ismael, in the city of Manaus, state of Amazonas, Brazil, as a filler fraction in hot-mixed asphalt concrete, replacing the mineral filler traditionally used in this region (Portland cement). Five asphalt mixtures were analysed, one as reference (100% Portland cement) and four others, using sludge in the proportions of 25%, 50%, 75% and 100%, by mass, reaching a maximum of 5%, in relation to the total mass of the mixture. Specimens of the five asphalt mixtures were moulded and the results according to Marshall stability, flow value, static indirect tensile strength, resilient modulus and repeated-load indirect fatigue (fatigue life) were analysed. All the physical and mechanical properties of the five mixtures met the specifications of Brazilian standards, having mixtures with sludge showing better performances than the reference mixture.
Keywords
Sludge; Wastewater treatment plant; Mineral filler; Asphalt mixture; Fatigue life; Resilient modulus; Static indirect tensile strength; Marshall stability
Biographical Notes
Nilton de Souza Campelo (Corresponding Author) has been teaching the disciplines Soil Mechanics, Foundation Engineering and Pavement Design for 30 years, in undergraduate and graduate courses in Civil Engineering at the Federal University of Amazonas. His research focuses on the areas of geotechnics, civil construction and solid waste.
José Francisco Aleixo da Silva is a retired Professor. He taught the disciplines Fluid Mechanics, Hydraulics and Sewage System Design for 35 years, in undergraduate course in Civil Engineering at the State of Amazonas University. His research focuses on the areas of hydraulics, sewage system design and solid waste.
João Bosco Ladislau de Andade is a retired Professor. He taught the disciplines Solid Waste Management, Sewage System Design and Introduction to Civil Engineering for 20 years, in undergraduate and graduate courses in Civil Engineering at the Federal University of Amazonas. His research focuses on the areas of sewage system design, solid waste management and urban environmental policy.
Acknowledgement
The authors would like to thank Prof. Dr Laura Maria Goretti da Mota, from Pavement Laboratory of COPPE/Federal University of Rio de Janeiro (UFRJ), for some laboratorial tests carried out in that place. This work was supported by the CNPq (grant number 620244/2008-9); FAPEAM (scholarship).
Citation: Campelo NS, da Silva JFA (2021) Use of Wastewater Treatment Sludge (WTS) As Filler in Hot-Mixed Asphalt Concrete. Int J Waste Resour.11:399.
Copyright: © 2021 Campelo NS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.