Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity
In recent years, the overuse and exploitation of coal resources as fuel in industry has caused many environmental problems as well as changes in the ecosystem. One way to address this issue is to recycle these materials as an alternative to aggregates in concrete. Recently, non-destructive tests hav...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/3/647 |
| _version_ | 1797417518037467136 |
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| author | Mahmood Karimaei Farshad Dabbaghi Mehdi Dehestani Maria Rashidi |
| author_facet | Mahmood Karimaei Farshad Dabbaghi Mehdi Dehestani Maria Rashidi |
| author_sort | Mahmood Karimaei |
| collection | DOAJ |
| description | In recent years, the overuse and exploitation of coal resources as fuel in industry has caused many environmental problems as well as changes in the ecosystem. One way to address this issue is to recycle these materials as an alternative to aggregates in concrete. Recently, non-destructive tests have also been considered by the researchers in this field. As there is limited work on the evaluation of the compressive strength of concrete containing coal waste using non-destructive tests, the current study aims to estimate the compressive strength of concrete containing untreated coal waste aggregates using the ultrasonic pulse velocity (UPV) technique as a non-destructive testing approach. For this purpose, various concrete parameters such as the compressive strength and UPV were investigated at different ages of concrete with different volume replacements of coarse and fine aggregates with coal waste. The test results indicate that 5% volume replacement of natural aggregates with untreated coal waste improves the average compressive strength and UPV of the concrete mixes by 6 and 1.2%, respectively. However, these parameters are significantly reduced by increasing the coal waste replacement level up to 25%. Furthermore, a general exponential relationship was established between the compressive strength and the UPV associated with the entire tested concrete specimens with different volume replacement levels of coal waste at different ages. The proposed relationship demonstrates a good correlation with the experimental results. |
| first_indexed | 2024-03-09T06:20:54Z |
| format | Article |
| id | doaj.art-923e07e92cf54e42a567ee4f931f158f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T06:20:54Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-923e07e92cf54e42a567ee4f931f158f2023-12-03T11:48:38ZengMDPI AGMaterials1996-19442021-01-0114364710.3390/ma14030647Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse VelocityMahmood Karimaei0Farshad Dabbaghi1Mehdi Dehestani2Maria Rashidi3Faculty of Civil Engineering, Babol Noshirvani University of Technology, Babol 47148-71167, IranFaculty of Civil Engineering, Babol Noshirvani University of Technology, Babol 47148-71167, IranFaculty of Civil Engineering, Babol Noshirvani University of Technology, Babol 47148-71167, IranCentre for Infrastructure Engineering, Western Sydney University, Penrith, NSW 2751, AustraliaIn recent years, the overuse and exploitation of coal resources as fuel in industry has caused many environmental problems as well as changes in the ecosystem. One way to address this issue is to recycle these materials as an alternative to aggregates in concrete. Recently, non-destructive tests have also been considered by the researchers in this field. As there is limited work on the evaluation of the compressive strength of concrete containing coal waste using non-destructive tests, the current study aims to estimate the compressive strength of concrete containing untreated coal waste aggregates using the ultrasonic pulse velocity (UPV) technique as a non-destructive testing approach. For this purpose, various concrete parameters such as the compressive strength and UPV were investigated at different ages of concrete with different volume replacements of coarse and fine aggregates with coal waste. The test results indicate that 5% volume replacement of natural aggregates with untreated coal waste improves the average compressive strength and UPV of the concrete mixes by 6 and 1.2%, respectively. However, these parameters are significantly reduced by increasing the coal waste replacement level up to 25%. Furthermore, a general exponential relationship was established between the compressive strength and the UPV associated with the entire tested concrete specimens with different volume replacement levels of coal waste at different ages. The proposed relationship demonstrates a good correlation with the experimental results.https://www.mdpi.com/1996-1944/14/3/647concreteuntreated coal wastefine recycled aggregatescoarse recycled aggregatesrecyclingultrasonic pulse velocity (UPV) |
| spellingShingle | Mahmood Karimaei Farshad Dabbaghi Mehdi Dehestani Maria Rashidi Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity Materials concrete untreated coal waste fine recycled aggregates coarse recycled aggregates recycling ultrasonic pulse velocity (UPV) |
| title | Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity |
| title_full | Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity |
| title_fullStr | Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity |
| title_full_unstemmed | Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity |
| title_short | Estimating Compressive Strength of Concrete Containing Untreated Coal Waste Aggregates Using Ultrasonic Pulse Velocity |
| title_sort | estimating compressive strength of concrete containing untreated coal waste aggregates using ultrasonic pulse velocity |
| topic | concrete untreated coal waste fine recycled aggregates coarse recycled aggregates recycling ultrasonic pulse velocity (UPV) |
| url | https://www.mdpi.com/1996-1944/14/3/647 |
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