Amirkabir University of Technology AUT Journal of Civil Engineering 2588-2899 1 2 2017 12 01 An Investigation on the Effect of Aggregates Packing Density on the Properties of High-Performance Concrete Mixtures 205 214 2734 10.22060/ceej.2017.12730.5263 EN H. Madani Civil Engineering Faculty, Graduate University of Advanced Technology, Haftbagh Exp. Way, Kerman, Iran J. Rostami Civil Engineering Faculty, Graduate University of Advanced Technology, Haftbagh Exp. Way, Kerman, Iran M. N. Norouzifar Civil Engineering Faculty, Graduate University of Advanced Technology, Haftbagh Exp. Way, Kerman, Iran H. Karimi Maleh H. Karimi Maleh Chamical Engineering Faculty, Graduate University of Advanced Technology, Haftbagh Exp. Way, Kerman, Iran Journal Article 2017 04 13 This study aims to investigate the influence of dry packing density of aggregates on the<br />mechanical and durability properties of high-performance concrete (HPC) mixtures. For this purpose, four<br />different aggregate gradations were investigated, including ideal Fuller-Thompson curve (F), ideal Andreasen-<br />Andersen curve (A) and their modified Funk and Dinger forms (MA and MF). The sequence of dry packing<br />density of the aggregate gradations was as A >F>MA>MF. However, in contrast to the dry packing density<br />results, the mixtures with the MF curve outperformed those with the other aggregate gradations in the<br />durability and mechanical properties. Likewise, the mixture with the ideal Andreasen-Andersen curve (A)<br />had lower compressive strengths and a higher diffusivity. Thus, the results indicated that the packing density<br />of dry aggregates could not be indicative of the packing density of concrete and consequently the durability<br />and mechanical characteristics of HPC. Moreover, the differences between the properties of the mixtures<br />were more evident at lower w/cm ratios especially at w/cm of 0.31. For instance, the difference between the<br />compressive strength of HPC mixtures with the MF and An aggregate gradations was about 14 MPa over 28<br />days. This study has been carried out on the concrete mixtures with compressive strengths up to 110 MPa. https://ajce.aut.ac.ir/article_2734_f0219cb2eaf71e5d5c7fab029e620815.pdf