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The relationships among different abrasion tests on deteriorated and undeteriorated rocks
Bulletin of Engineering Geology and the Environment ( IF 4.2 ) Pub Date : 2020-11-09 , DOI: 10.1007/s10064-020-02041-0
Ali Özvan , Nevzat Direk

In ancient times, the most widely used rocks, especially in construction of roads and monuments, were sedimentary and magmatic rocks. Natural stones used in the buildings and historical monuments are subjected to atmospheric effects such as freeze-thaw, salt crystalisation and wetting and drying cycles which accelerates abrasion. Therefore, wear resistance of natural stone materials is important for selection of suitable materials in engineering projects. In order to investigate the effect of deterioration on abrasion properties of natural rock samples, three different abrasion tests (Böhme abrasion (BA), wide wheel abrasion (WWA) and aggregate impact value (AIV)) were applied to undeteriorated and artificially deteriorated (samples were subjected to accelerated weathering tests (AWT)) natural rock samples in this study. For the first time, the relationship between AIV-WWA and BA-AIV tests was experimentally investigated. Consequently, the relationships among BA-WWA, BA-AIV and AIV-WWA values were examined, the empirical formulas showing these relationships were developed and high correlations (R2 > 0.80) were obtained. Finally, an abrasion class was proposed using classification of WWA for determining BA and AIV of natural rock samples in this study.



中文翻译:

变质和未变质岩石不同磨耗试验之间的关系

在古代,使用最广泛的岩石是沉积岩和岩浆岩,尤其是在修建公路和古迹时。建筑和历史古迹中使用的天然石材会受到大气影响,例如冻融,盐分结晶以及润湿和干燥循环,从而加速磨损。因此,天然石材的耐磨性对于在工程项目中选择合适的材料很重要。为了研究劣化对天然岩石样品磨耗性能的影响,将三种不同的磨耗测试(伯曼磨耗(BA),宽轮磨耗(WWA)和总冲击值(AIV))用于未劣化和人为劣化的样品(样品在这项研究中,对天然岩石样品进行了加速风化试验(AWT)。首次,实验研究了AIV-WWA和BA-AIV测试之间的关系。因此,检查了BA-WWA,BA-AIV和AIV-WWA值之间的关系,建立了显示这些关系的经验公式,并建立了高度相关性(得到R 2  > 0.80)。最后,本研究提出了一种使用WWA分类法确定天然岩石样品BA和AIV的耐磨等级。

更新日期:2020-11-12
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