JOURNAL ARTICLE

Statistical damage model with strain softening for lime-stabilized rammed earth after elevated temperature.

  • Published In: International Journal of Damage Mechanics, 2025, v. 34, n. 9. P. 1466 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Luo, Yi; Ye, Chao; Ni, Pengpeng; Zeng, Zhixing; Liu, Yixian 3 of 3

Abstract

This article focuses on the mechanical degradation of lime-stabilized rammed earth after exposure to elevated temperatures, aiming to inform building protection and rehabilitation strategies. Through unconfined compression tests on specimens heated up to 700°C, the study finds a quasi-linear reduction in strength and stiffness with increasing temperature, alongside enhanced ductility at high temperatures. Microstructural analyses reveal increased porosity and reduced calcium carbonate precipitation as key factors in strength loss. A new statistical thermal damage model is proposed, capturing both unrecoverable deformation from pore closure and damage evolution in the solid skeleton, effectively predicting the stress-strain behavior of rammed earth after heating. The model is limited to one-dimensional unconfined compression and does not address tension or shear failure modes.

Additional Information

  • Source:International Journal of Damage Mechanics. 2025/09, Vol. 34, Issue 9, p1466
  • Document Type:Article
  • Subject Area:Earth and Atmospheric Sciences
  • Publication Date:2025
  • ISSN:1056-7895
  • DOI:10.1177/10567895241305596
  • Accession Number:187242549
  • Copyright Statement:Copyright of International Journal of Damage Mechanics is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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