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ORIGINAL RESEARCH article

Front. Built Environ.
Sec. Construction Materials
Volume 10 - 2024 | doi: 10.3389/fbuil.2024.1393882
This article is part of the Research Topic

Non-Conventional Technologies and Materials for Sustainability

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Effects of rock types and crushing mechanism on the 3D morphological parameters of manufactured sands: a combination study of 3D scanning and spherical harmonic analysis Provisionally Accepted

Peiyun Qiu1 Huaizhi Wang1 Peng Wang1 Min Xiao2* Jiangxiong Wei2
  • 1Other, China
  • 2South China University of Technology, China

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This study aims to investigate the effect of rock types, i.e. granite, conglomerate rock, limestone, and crushing mechanism, i.e. Vertical Shaft Impact (VSI) crusher, Horizontal Shaft Impact (HSI) crusher, on the morphology of manufactured sands. By combining the 3D scanning and spherical harmonic analysis, the morphological parameters of manufactured sands such as elongation ratio (El), flatness ratio (Fl), aspect ratio (AR), edge angle (EA), sphericity (SH), and fractal dimension were quantified. The results indicate limestone is more readily broken into blade-shaped particles without being able to blunt sharp edges through constant abrasion. The proportion of bladed particles in manufactured sand prepared from limestone is 1.91 times higher than the proportion of bladed particles in conglomerates. Additionally, the HSI crusher has a more significant effect on rocks with smaller strength. For the same parent rock, manufactured sand from a VSI crusher contains 30% more spherical and oblate particles than from an HSI crusher.

Keywords: Manufactured sand, Spherical harmonic analysis, Morphological parameter, Rock type, Crushing mechanism

Received: 29 Feb 2024; Accepted: 10 Apr 2024.

Copyright: © 2024 Qiu, Wang, Wang, Xiao and Wei. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Mx. Min Xiao, South China University of Technology, Guangzhou, China