Microstructural characterization of a 3D-printed soil

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-11-15 DOI:10.28927/sr.2022.005422

A. Ferrari, Marco Rosone, Silvia Rosa, G. Sapienza

引用次数: 0

Abstract

Transversal applications of 3D-printing (or Additive Manufacturing) have been recently implemented in the field of Geomechanics. In a 3D-printing process, the printed volume is obtained from successive layering of adjacent soil filaments. In this work, the fabric of an as-printed soil has been carried out by combining Mercury Intrusion Porosimetry (MIP) tests and Scanning Electron Microscope (SEM) observations, with the aim to highlight how the particle arrangements and the orientation and shape of pores are linked to the printing operation. The microstructural analyses showed that macropores are the result of the relative position of the filaments and their initial distortion in quasi-undrained conditions. Particle arrangement within the soil filament is strongly anisotropic, due to the rotative movement of the soil in the extruder.

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3d打印土壤的微观结构表征

3d打印(或增材制造)的横向应用最近在地质力学领域得到了应用。在3d打印过程中，打印体积是由相邻土壤细丝的连续分层获得的。在这项工作中，通过结合汞侵入孔隙度(MIP)测试和扫描电子显微镜(SEM)观察，对印刷土壤的结构进行了研究，目的是突出颗粒排列、孔隙的方向和形状如何与印刷操作联系在一起。微观结构分析表明，大孔隙是在准不排水条件下细丝的相对位置及其初始变形的结果。由于土在挤出机中的旋转运动，土丝内的颗粒排列具有很强的各向异性。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.