waste glass

pervious concrete

chloride penetration

fly ashes

recycled aggregates

blast furnace slag

recycled aggregate

water absorption

strength mpa

cement

Advances in concrete construction

This research aims to study the utilization of olive waste ash (OWA) in the production of concrete as a partial
substitute for cement. Effects of using OWA on the physical and mechanical properties of concrete mixtures have been
investigated. This is done by carrying out tests involving the addition of various percentages of OWA to cement (0%, 5%, 10% and 15%). For each percentage, tests were performed on both fresh and hardened concrete; these included slump test, unit weight test and compressive strength test after 7, 28 and 90 days. Durability tests were investigated in solutions containing 5% NaOH and MgSO4 by weight of water. In addition, resistance to high temperatures was tested by subjecting the cubes to high temperatures of up to 170oC. The results of this research indicate that a higher percentage of OWA gives a lower compressive strength and lower workability but higher performance in terms of durability against both different weather conditions and high temperatures.

Properties and durability of concrete with olive waste ash as a partial cement replacement