Effects of Polypropylene Waste Addition as Coarse Aggregates in Concrete: Experimental Characterization and Statistical Analysis
In recent times, thermoplastic waste materials are being extensively used as fine and coarse aggregates in the concrete mix as an environmentally friendly construction material. This study aims at utilizing polypropylene (PP) as a partial substitute for the conventional coarse aggregates in M30 grad...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Hindawi Limited
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/7886722 |
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| author | D. C. Naveen K. Naresh B. S. Keerthi Gowda Madhu Sudana Reddy G C. Durga Prasad Ragavanantham Shanmugam |
| author_facet | D. C. Naveen K. Naresh B. S. Keerthi Gowda Madhu Sudana Reddy G C. Durga Prasad Ragavanantham Shanmugam |
| author_sort | D. C. Naveen |
| collection | DOAJ |
| description | In recent times, thermoplastic waste materials are being extensively used as fine and coarse aggregates in the concrete mix as an environmentally friendly construction material. This study aims at utilizing polypropylene (PP) as a partial substitute for the conventional coarse aggregates in M30 grade concrete. The different replacement levels of coarse aggregates such as 0%, 20%, 40%, and 60% by weight were used in concrete. Sieve analysis, specific gravity, and water absorption tests were performed in all replacement levels of aggregates. The mechanical (compressive and split tensile tests) tests were conducted after 3, 14, and 28 days. The change in mechanical properties of concrete with the addition of different weight proportions of plastics was studied experimentally. Further, experimental values were predicted using the two-parameter Weibull distribution and artificial neural network (ANN)-based statistical approaches. The Levenberg–Marquardt algorithm was used in predicting the mechanical properties using the ANN. A good correlation was obtained between the experimental and predicted values with an error (%) of less than 10. The decrease in mechanical properties with the increase in replacement levels of coarse aggregates in concrete was observed in both experimental and predicted approaches. This can be attributed to poor bonding between concrete and PP aggregate owing to the development of agglomerations and the hydrophobic nature of PP. However, the strength values of 20% PP-embedded concrete specimens are closer to 0% PP-embedded concrete specimens. Therefore, 20% PP-embedded concrete specimens can be used for primary load-bearing applications to utilize plastic waste and reduce the cost of the component. |
| first_indexed | 2024-04-11T14:33:15Z |
| format | Article |
| id | doaj.art-91c2678881f6420a959e16a7db19107f |
| institution | Directory Open Access Journal |
| issn | 1687-8442 |
| language | English |
| last_indexed | 2024-04-11T14:33:15Z |
| publishDate | 2022-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj.art-91c2678881f6420a959e16a7db19107f2022-12-22T04:18:28ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/7886722Effects of Polypropylene Waste Addition as Coarse Aggregates in Concrete: Experimental Characterization and Statistical AnalysisD. C. Naveen0K. Naresh1B. S. Keerthi Gowda2Madhu Sudana Reddy G3C. Durga Prasad4Ragavanantham Shanmugam5Department of Civil EngineeringDepartment of Materials Science and EngineeringDepartment of Civil EngineeringDepartment of Mechanical EngineeringDepartment of Mechanical EngineeringDepartment of Advanced Manufacturing Engineering TechnologyIn recent times, thermoplastic waste materials are being extensively used as fine and coarse aggregates in the concrete mix as an environmentally friendly construction material. This study aims at utilizing polypropylene (PP) as a partial substitute for the conventional coarse aggregates in M30 grade concrete. The different replacement levels of coarse aggregates such as 0%, 20%, 40%, and 60% by weight were used in concrete. Sieve analysis, specific gravity, and water absorption tests were performed in all replacement levels of aggregates. The mechanical (compressive and split tensile tests) tests were conducted after 3, 14, and 28 days. The change in mechanical properties of concrete with the addition of different weight proportions of plastics was studied experimentally. Further, experimental values were predicted using the two-parameter Weibull distribution and artificial neural network (ANN)-based statistical approaches. The Levenberg–Marquardt algorithm was used in predicting the mechanical properties using the ANN. A good correlation was obtained between the experimental and predicted values with an error (%) of less than 10. The decrease in mechanical properties with the increase in replacement levels of coarse aggregates in concrete was observed in both experimental and predicted approaches. This can be attributed to poor bonding between concrete and PP aggregate owing to the development of agglomerations and the hydrophobic nature of PP. However, the strength values of 20% PP-embedded concrete specimens are closer to 0% PP-embedded concrete specimens. Therefore, 20% PP-embedded concrete specimens can be used for primary load-bearing applications to utilize plastic waste and reduce the cost of the component.http://dx.doi.org/10.1155/2022/7886722 |
| spellingShingle | D. C. Naveen K. Naresh B. S. Keerthi Gowda Madhu Sudana Reddy G C. Durga Prasad Ragavanantham Shanmugam Effects of Polypropylene Waste Addition as Coarse Aggregates in Concrete: Experimental Characterization and Statistical Analysis Advances in Materials Science and Engineering |
| title | Effects of Polypropylene Waste Addition as Coarse Aggregates in Concrete: Experimental Characterization and Statistical Analysis |
| title_full | Effects of Polypropylene Waste Addition as Coarse Aggregates in Concrete: Experimental Characterization and Statistical Analysis |
| title_fullStr | Effects of Polypropylene Waste Addition as Coarse Aggregates in Concrete: Experimental Characterization and Statistical Analysis |
| title_full_unstemmed | Effects of Polypropylene Waste Addition as Coarse Aggregates in Concrete: Experimental Characterization and Statistical Analysis |
| title_short | Effects of Polypropylene Waste Addition as Coarse Aggregates in Concrete: Experimental Characterization and Statistical Analysis |
| title_sort | effects of polypropylene waste addition as coarse aggregates in concrete experimental characterization and statistical analysis |
| url | http://dx.doi.org/10.1155/2022/7886722 |
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