Engineering properties of basalt aggregates in terms of use in granular layers of flexible pavements
In this study, it is aimed to increase the level of knowledge about the physical and mechanical properties of basalt aggregates which is produced as crushed-stone in quarries. For this purpose, an experimental study was carried out on aggregates and test results were compared with the current specifications in force. As a result of the initial tests, it was determined that the impact resistance, abrasion resistance and freeze-thaw durability of basalt aggregate were quite good. However, the water absorption and flakiness index of basalt aggregate was observed partially high. Based on the test results, it is observed that the findings obtained by single-graded and static test methods that are widely used for granular materials, do not provide sufficient information about the performance of materials. It would be appropriate to support routine laboratory test results with dynamic triaxial test findings. Elastic stiffness of the basalt aggregates under repetitive loading conditions has been investigated by the dynamic triaxial test method. Statistically significant results were obtained by placing the resilient modulus findings into the K-θ model. Recommended resilient modulus Mr(s) values obtained for basalt aggregates by the new K-θ formula are given in a table. Mr(s) could be used as a stiffness parameter in pavement design in conditions where basalt aggregate is used as conventional crushed-stone.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/22145095
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Supplemental Notes:
- © 2022 Published by Elsevier Ltd. Abstract reprinted with permission of Elsevier.
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Authors:
- Yılmaz, Altan
- Publication Date: 2022-12
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: e01182
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Serial:
- Case Studies in Construction Materials
- Volume: 17
- Issue Number: 0
- Publisher: Elsevier
- ISSN: 2214-5095
- Serial URL: http://www.sciencedirect.com/science/journal/22145095
Subject/Index Terms
- TRT Terms: Abrasion resistance; Basalt coarse aggregates; Dynamic tests; Flexible pavements; Freeze thaw durability; Granular materials; Highways; Modulus of resilience
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01847694
- Record Type: Publication
- Files: TRIS
- Created Date: May 31 2022 9:18AM