The optimal percentage of fine aggregate in concrete obtained from a virtual voids-ratio diagram does not always remain optimal in a dynamic condition of the aggregate particles, such as during the casting or the compacting stages of concrete. The reasons for this discrepancy lay in the assumption of packing state in the calculation from the virtual voids-ratio diagram and the difference in movement of the aggregate particles. This study investigates the influence of the particle shape of coarse aggregates on two optimal fine to total aggregate ratio values based on the virtual voids-ratio diagram as well as obtained in an actual concrete compaction experiment. A suitable index to express average coarse aggregate shape was also examined at the beginning of the study. Finally, a method was suggested for adjusting the optimum fine to total aggregate ratio obtained from a virtual voids-ratio diagram using the quantified average particle shape of the coarse aggregates.

从虚拟空隙率图获得的混凝土细骨料的最佳百分比在骨料颗粒的动态条件下（例如在混凝土的浇铸或压实阶段）并不总是保持最佳状态。产生这种差异的原因在于，根据虚拟空隙率图和凝聚粒子的运动差异，在计算中假定为堆积状态。本研究基于虚拟空隙率图以及在实际混凝土压实实验中获得的结果，研究了粗骨料颗粒形状对两个最佳细骨料比与总骨料比率值的影响。在研究开始时，还检查了表达平均粗骨料形状的合适指标。最后，