| Summary: | This paper provides the laboratory characterisation of a low-cost stone base material for road construction made from locally available natural aggregate and crushed stone aggregate. To create the stone base material, crushed aggregates and natural aggregate were blended in a 1:1 ratio and then subjected to a series of laboratory tests in accordance with British standard procedure. Grain size analysis, particle density, compaction and California bearing ratio (CBR) tests were performed. The obtained results revealed that the formed stone base materials contain approximately 2% fine particles smaller than 75 μm, and approximately 80% of the materials are between 50 mm and 5 mm. The stone base also has a maximum dry density (MDD) of 2085 kg/m3, an optimum water content (OWC) of 6.2%, a particles density of 2.67, and an 82% CBR value. The material is recommended for use in the construction as road base layer. © 2024 Author(s).
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