Utilization of dates palm kernel in high performance concrete

The (PKS), (CPK) and (PKA) were replaced individually by weight of the course aggregate, fine aggregate and cement respectively using different percentages ranging from 5% to 20%. Also, they were mixed together in single mixes using different replacement percentages The physical and mechanical properties of each replacement were evaluated at 7, 28, and 56 days. Although the compressive strength has dropped around 28-40% for all replacement ratios, still, it remained within acceptable limits. On the other hand, the density was decreased considerably reaching a value of 1850 kg/m3 for mixture with (20%, 10%, 10%) (PKA), (CPK) and (PKS) replacement respectively and with compressive strength around 45 MPa at 28 days of age.