Yassoub Ahmed, N. and Fahem Alkhafaji, F. 2020. NANO - SILICA (SiO2) CONTRIBUTION TO MECHANICAL AND MICROSTRUCTURAL CHARACTERISTICS OF HIGH PERFORMANCE CONCRETE PAVEMENT. Journal of Engineering and Sustainable Development. 24, 4 (Jul. 2020), 71–78. DOI:https://doi.org/10.31272/jeasd.24.4.8.