Evaluation of Some Engineering Properties of Rocks in Selected Quarries for Construction Works in Kwara State
Keywords:Engineering Properties, Aggregates, Rock Strength, Construction works
Evaluation of some engineering properties of rocks was carried out from selected quarries in Kwara State to determine their suitability for construction works. Representative samples from each quarry were subjected to Aggregate Abrasion Value, Aggregate crushing Value and Aggregate Impact Value and Water Absorption Value. The results of Aggregate Abrasion Value range from 28% to 42% with an average of 34.75%. The Aggregate Crushing Value ranges from 30.4% to 43.4% with an average of 35.57%. Aggregate Impact Value (AIV) ranges from 21.20% to 27.30% with an average of 24.25% while the Water Absorption rate ranges from 1% to 4% with an average of 2.5%. The results of the engineering analysis revealed that all the rocks are good to excellent for construction purpose and they all attained the required satisfactory standard in accordance to with standard specification for aggregates in British Standard, ASTM, and AASHTO.
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