Loading-Rate Effect on the Fracture Response of Natural Hydraulic and Aerial-Lime Mortars
Publication: Journal of Materials in Civil Engineering
Volume 32, Issue 9
Abstract
This paper presents the influence of the loading velocity on the fracture response of mortars with both natural hydraulic and aerial limes under three different rates (loading-point displacement rates, , , and ). According to the results, the fracture energy and the peak load are sensitive to the loading rate. The maximum dynamic increase factors (DIF), of the peak load are 1.4 and 1.6 for the natural hydraulic and aerial lime mortars, respectively, while it is 1.9 for the fracture energy for both mortars. Moreover, the increase in the peak load and fracture energy of the natural hydraulic lime mortar is basically the result of the viscous effect of free water in the mortar. However, for the aerial lime mortar, the rate effect is chiefly related to the crack path and propagation velocity.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The authors appreciate funding from the Ministerio de Ciencia, Innovación y Universidades, Spain, with grants BIA2015-68678-C2-1-R and RTC-2017-6736-3, and the Junta de Comunidades de Castilla-La Mancha (JCCM), Fondo Europeo de Desarrollo Regional, Spain, with grant PEII-2014-016-P. Lucía Garijo also acknowledges the financial support from the Ministerio de Educación, Cultura y Deporte, Spain with the scholarship FPU014/05186 and José Joaquín Ortega from the JCCM with the scholarship 2016/12998, Spain. We also thank the fruitful discussion with Professor Pere Roca, from Universidad Politécnica de Cataluña, on the fabrication of the lime mortars, and Ignacio Garrido Sáenz, from Universidad de Castilla-La Mancha, for his assistance with the SEM analysis.
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Published In
Journal of Materials in Civil Engineering
Volume 32 • Issue 9 • September 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Jul 10, 2019
Accepted: Mar 11, 2020
Published online: Jun 30, 2020
Published in print: Sep 1, 2020
Discussion open until: Nov 30, 2020
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