Effect of particle size and shape on shear strength of sand–rubber granule mixtures

IF 2.3 3区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Granular Matter Pub Date : 2022-10-31 DOI:10.1007/s10035-022-01287-7

Abdulmuttalip Ari, Suat Akbulut

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引用次数: 3

Abstract

In this study, the effect of particle size and shape parameters on shear strength of sand–rubber mixture was investigated using repose angle, as an analogy to the constant volume response, maximum dilatancy, and peak internal friction angles for various mixture conditions. For this purpose, four different granulated rubber and sand sizes were used to include the particle size effect. The size ratio of rubber and sand was maintained as unity in the mixtures. The influence of particle shape was reflected using three different shape classes for sand and two different particle forms for rubber granules. The shape properties of particles were quantified using overall regularity parameter with image processing. The percentage of rubber in the mixtures was varied at five different rates by weight of total sample. As a result, it was observed that the soft-rubber inclusion affected the shear strength parameters distinctively. The geometrical properties of sand and rubber particles have leading roles in the evolution of shear strength.

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粒径和形状对砂胶混合颗粒抗剪强度的影响

本研究利用休止角，类比各种混合料条件下的等体积响应、最大剪胀和峰值内摩擦角，研究了粒径和形状参数对砂胶混合料抗剪强度的影响。为此，使用了四种不同的橡胶颗粒和砂粒度来包括粒度效应。混合料中橡胶与砂的粒度比保持一致。颗粒形状的影响通过砂的三种不同形状类别和橡胶颗粒的两种不同颗粒形式来反映。通过图像处理，利用整体规则参数量化颗粒的形状特性。橡胶在混合物中的百分比按总样品的重量以五种不同的速率变化。结果表明，软橡胶夹杂物对抗剪强度参数有明显的影响。砂和橡胶颗粒的几何特性对抗剪强度的演化起主导作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Granular Matter Materials Science-General Materials Science

CiteScore

4.60

自引率

8.30%

发文量

审稿时长

6 months

期刊介绍： Although many phenomena observed in granular materials are still not yet fully understood, important contributions have been made to further our understanding using modern tools from statistical mechanics, micro-mechanics, and computational science. These modern tools apply to disordered systems, phase transitions, instabilities or intermittent behavior and the performance of discrete particle simulations. >> Until now, however, many of these results were only to be found scattered throughout the literature. Physicists are often unaware of the theories and results published by engineers or other fields - and vice versa. The journal Granular Matter thus serves as an interdisciplinary platform of communication among researchers of various disciplines who are involved in the basic research on granular media. It helps to establish a common language and gather articles under one single roof that up to now have been spread over many journals in a variety of fields. Notwithstanding, highly applied or technical work is beyond the scope of this journal.