Dataset of laboratory experiments on cohesive iron ore bulk properties - in PhD thesis Grabs and Cohesive Bulk Solids

· Three bulk properties (type of cargo, moisture content, and pre-consolidation) are responsible for the variations of the dependent bulk properties. Various dependent bulk properties, including bulk density, angle of repose, penetration resistance, and shear strength were quantified. · The three iron ore samples are categorized as very cohesive to cohesive based on the ring shear test results. · A general conclusion is that the dependent bulk properties of cohesive iron ore samples are highly sensitive to the history of the applied stress, σ_pre. This phenomena was observed in both ring shear and consolidation-penetration tests, in which high correlations between pre-consolidation and respectively flowability and accumulative penetration resistance are found. Therefore, choosing appropriate range of pre-consolidation in the design of equipment for handling cohesive iron ore is also crucial.

· 三项自变量散体特性（货种、含水率与预固结（pre-consolidation））是导致因变量散体特性产生变化的核心因素。本次研究量化测定了多项因变量散体特性，涵盖堆积密度（bulk density）、安息角（angle of repose）、贯入阻力（penetration resistance）与抗剪强度（shear strength）。
· 本次试验所用的三个铁矿石试样，根据环剪试验（ring shear test）结果可被划分为极强黏聚性至黏聚性类别。
· 研究得出的一般性结论为：黏聚性铁矿石试样的因变量散体特性对施加应力的历史（即预固结应力σ_pre）具有高度敏感性。该现象在环剪试验与固结-贯入试验（consolidation-penetration tests）中均被观测到，两类试验中分别发现预固结与流动性、累计贯入阻力之间存在高度相关性。因此，在黏聚性铁矿石装卸设备的设计过程中，选取合适的预固结参数范围同样至关重要。