Engineering properties of basalt aggregates in terms of use in granular layers of flexible pavements
Source abstract
Abstract
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.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Geotechnical Engineering and Underground Structures · Geotechnical Engineering and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
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