Evaluating the Effect of Particle Gradation on Concrete's Permeability, Absorption, and Ultrasonic Properties
This research investigates the effects of utilizing dune sand from the Algerian Sahara, a widely available material, as a partial replacement for traditional construction sand on essential physical properties that influence concrete durability. To evaluate the concrete's performance, physical...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal de Viçosa (UFV)
2024-11-01
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| Series: | The Journal of Engineering and Exact Sciences |
| Subjects: | |
| Online Access: | https://periodicos.ufv.br/jcec/article/view/20639 |
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| Summary: | This research investigates the effects of utilizing dune sand from the Algerian Sahara, a widely available material, as a partial replacement for traditional construction sand on essential physical properties that influence concrete durability. To evaluate the concrete's performance, physical properties such as permeability, capillary absorption, and sound velocity were measured. Construction sand from the Sidi Slimane area was combined with dune sand from the Taibet region in varying proportions (0%, 5%, 10%, 15%, and 20%). Findings revealed that higher dune sand percentages positively affected dynamic acoustic test results by filling void spaces with fine particles, thereby enhancing concrete density and impermeability, which restricts water movement. Permeability tests showed reduced water infiltration with increased dune sand content, reflecting a decrease in void presence. However, capillary absorption rose with higher dune sand levels due to its capillary behavior. The influence of increasing dune sand content on absorption rates was evident, with increments of around 5.38%, 11.21%, 18.38%, and 25.11% relative to CSD0 concrete, after 48 hours of testing for CSD5, CSD10, CSD15, and CSD20, respectively. Consequently, each 5% addition of dune sand resulted in an approximate increase in absorbed water mass by 5.38%, 5.83%, 7.17%, and 6.72%, respectively. Overall, the mixture containing 20% dune sand significantly improved the acoustic and permeability properties, contributing to concrete durability, while formulations without dune sand displayed favorable capillary absorption results due to existing voids.
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| ISSN: | 2527-1075 |