Applicability of magnetic resonance imaging for mass timber moisture research

IF 8 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Construction and Building Materials Pub Date : 2025-06-11 DOI:10.1016/j.conbuildmat.2025.142092

J. Leko , Russell Richman , Christopher Schumacher

引用次数: 0

Abstract

Moisture durability is a significant concern for mass timber buildings. Current sensing methods provide only point measurements within mass timber. Magnetic resonance imaging (MRI), a non-invasive volumetric imaging method, is used to characterize moisture interaction in a cross laminated timber sample. A methodology is demonstrated to conduct observations using medical-grade equipment; determine the required number of scans necessary to characterize the material, and suggests suitable MRI pulse sequences. Analysis shows the quality of the resultant imagery is strongly dependent on the MRI pulse sequence chosen. It is also shown that resolution degrades with decreasing moisture content. The results establish that MRI can be useful to support mass timber moisture durability studies, and presents directions for further investigation.

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磁共振成像在木材含水率研究中的适用性

湿度耐久性是大型木结构建筑的重要问题。目前的传感方法只能提供大量木材内的点测量。磁共振成像（MRI）是一种非侵入性的体积成像方法，用于表征交叉层压木材样品中的水分相互作用。演示了一种使用医疗级设备进行观察的方法；确定表征材料所需的扫描次数，并建议合适的MRI脉冲序列。分析表明，所得图像的质量很大程度上取决于所选择的MRI脉冲序列。分辨率随含水率的降低而降低。结果表明，核磁共振成像可以有效地支持大量木材的湿耐久性研究，并提出了进一步的研究方向。

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

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.