In addition to the main study to find the aggregate influence on the properties of concrete, a separate study to understand what might have caused it, or to understand the influence of particle size distribution on the properties of concrete, a separate mixer series with particle size distribution of the different fine aggregate manipulated to bring to a single size is also carried out. Single particle size distribution is achieved by first sieving the aggregate into different aggregate sizes and then remixing it to a predetermined aggregate distribution. In this study particle size distribution of quarry dust and river sand is manipulated to bring them to the same particles size distribution of offshore sand. Given the large quantities of fine aggregate types to be sieved in order to make them into a single particle size distribution, only 70% fine aggregate proportions to total aggregate content was considered in this series.
The main comparison of the aggregate influence is done based on the compressive strength and water demand to make self compacting mixes under constant doze of viscosity modifier agent. In addition aggregate influence on shrinkage characteristics of concrete is also measured.