The production of construction and building materials starts with reducing the size of natural, industrial, and waste materials. In addition to strength and durability considerations of natural resources recommended by various institutions, size reduction characterization, specific to rock aggregates, has a vital role in their size-related quality. In this study, various sandstones extracted from underground mines located in northwestern Turkey were investigated for size reduction characterizations. Several mineralogical, textural, and physico-mechanical properties were determined for each rock type. Crushability tests were carried out using a laboratory-scale cone crusher for different feeding size fractions, namely + 11.20 − 16.00 mm (size I), + 9.52 − 16.00 mm (size II), and + 6.30 − 16.00 mm (size III). Based on the crushability tests, crushed particles were analyzed, focusing on production yield, size, and shape properties. Each crushability test was also explored for energy consumption arising from varying rock properties of the sandstones. The laboratory test results demonstrated that the degree of rock crushability (DRC) and specific energy consumption (E_cs, kJ/kg) were associated with the Brazilian tensile strength (BTS, MPa) and apparent porosity (n_e, %) of the sandstones. The results also showed that the degree of sorting in mineral constituents, quantified as the sorting coefficient (S_c), affected the DRC. However, mineralogical features of the sandstones have no significant impact on DRC and E_cs. Variations in feeding gradation, irrespective of whether mineralogical, textural, or physico-mechanical properties, have remarkable effects on product flakiness and yields for specific size fractions. In light of the findings obtained, the present study provides knowledge on how the sandstones behave under cone crushing operations.

建筑和建材的生产始于减少天然，工业和废料的尺寸。除了各种机构推荐的自然资源的强度和耐用性考虑之外，针对岩石集料的尺寸减小特征在与尺寸相关的质量中也起着至关重要的作用。在这项研究中，对从土耳其西北部地下矿山中提取的各种砂岩进行了研究，以进行粒度减小的表征。对于每种岩石类型，确定了几种矿物学，质地和物理力学性质。使用实验室规模的圆锥破碎机对不同的进料粒度分数（即+ 11.20-16.00 mm（I型），+ 9.52-16.00 mm（II型）和+6.30-16.00 mm（III型）进行可破碎性测试。根据压碎性测试，对压碎的颗粒进行了分析，重点是产量，尺寸和形状特性。还探讨了每种可压碎性测试的能耗，这些能耗是由于砂岩的岩石特性不同而产生的。实验室测试结果表明，岩石的可压碎性（DRC）和比能耗（E _cs，kJ / kg）与砂岩的巴西抗拉强度（BTS，MPa）和表观孔隙率（n _e，％）有关。结果还表明，以分选系数（S _c）量化的矿物成分的分选程度会影响DRC。但是，砂岩的矿物学特征对DRC和E _cs并无显着影响。饲料级分的变化，无论是矿物学，质地还是物理力学性质，均会对产品的片状度和特定粒度级分的收率产生显着影响。根据获得的发现，本研究提供了有关砂岩在圆锥破碎操作下的行为的知识。