Open Access
Sandeep Kumar. C,
Dr. Usha.S,
Shivaraju G. D,
- PG Student, Department of Civil Engineering, Sri Siddhartha Institute of Technology, Tumakuru, Karnataka, India
- Assistant Professor, Department of Civil Engineering, Sri Siddhartha Institute of Technology, Tumakuru, Karnataka, India
- Assistant Professor, Department of Civil Engineering, Sri Siddhartha Institute of Technology, Tumakuru, Karnataka, India
Abstract
This study examines the utilization of sludge from common effluent treatment plants (CETP) as a fractional substitute for sand in M20 concrete mixtures. Its aim is to address disposal challenges associated with CETP sludge while promoting sustainable use of natural resources. The research assesses the structural and microstructural attributes of concrete mixes containing varying percentages of CETP sludge (0%, 10%, 20%, 30%, 40%, and 50%). Tests conducted include compressive, flexural, and split tensile strength, alongside durability assessments like dry and wet durability, sulphate resistance, and chloride penetration. Energy dispersive x-ray analysis (EDAX) identifies significant elements in CETP sludge, such as chromium, zinc, nickel, copper, iron, sodium, lead, cadmium, and potassium, influencing properties from improved corrosion resistance to potential structural reinforcement. Findings indicate that replacing 10% of sand with CETP sludge optimizes compressive strength, achieving an average of 21.01 N/mm² after 28 days, compared to 26.58 N/mm² for conventional concrete. Tensile strength at 10% replacement measures 2.40 N/mm², slightly lower than the control’s 2.90 N/mm², and flexural strength is 1.61 N/mm² after 28 days, compared to 2.11 N/mm² for the control mix. The slump test confirms good workability, with a slump value of 100 mm for the mix containing 10% CETP sludge replacement. This study validates the technical feasibility and economic viability of incorporating CETP sludge into concrete, potentially reducing fine aggregate costs by 10%. To further enhance the performance and safety of CETP sludge concrete, future research could explore the integration of geopolymer encapsulation techniques. Such encapsulation could effectively immobilize heavy metals, mitigating potential environmental and health risks associated with CETP sludge. This aligns with the journal’s focus on advanced materials and sustainable practices, offering a pathway for innovative, eco-friendly building materials and supporting sustainable development goals through improved waste management and resource conservation.
Keywords: CETP sludge, concrete strength, durability, EDAX, sustainable construction, waste management.
[This article belongs to Special Issue under section in Journal of Polymer and Composites (jopc)]
Sandeep Kumar. C, Dr. Usha.S, Shivaraju G. D. A comprehensive study on elemental analysis and sustainable integration of CETP (common effluent treatment plant) sludge as a substitute to sand in concrete. Journal of Polymer and Composites. 2024; 13(01):49-59.
Sandeep Kumar. C, Dr. Usha.S, Shivaraju G. D. A comprehensive study on elemental analysis and sustainable integration of CETP (common effluent treatment plant) sludge as a substitute to sand in concrete. Journal of Polymer and Composites. 2024; 13(01):49-59. Available from: https://journals.stmjournals.com/jopc/article=2024/view=187042
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References
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Journal of Polymer and Composites
| Volume | 13 |
| Special Issue | 01 |
| Received | 26/07/2024 |
| Accepted | 05/11/2024 |
| Published | 11/11/2024 |
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