MATEC Web Conf.
Volume 286, 201914th Congress of Mechanics (CMM2019)
|Number of page(s)||3|
|Section||Solid and Composite Materials|
|Published online||14 August 2019|
Study of the mechanical behavior of light mortars produced by thermal treatment, with coal waste of Jerada mine (eastern Morocco)
Laboratory of Mechanics and Numerical Computing ‘LM2N’, National School of Applied Sciences, Oujda, Morocco.
2 Laboratory of Civil Engineering and Mechanical Engineering ‘LGCGM’, INSA of Rennes, Rennes, France.
3 Laboratory of Sciences and Professions of the Engineer, ENSAM, Moulay Ismail University, Meknes, Morocco.
This paper investigates the mechanical properties of light mortars containing coal waste of Jerada mine, as a volume replacement for sand, with different percentages of substitution: 10%, 20% and 50%.
The results revealed a decrease in the mechanical properties of composite mortars, including uniaxial compression and flexural strength as well as rigidity modulus. However, the heat treatment improves their ductility, and delays the propagation of cracks.
Thus, the developed material is interesting for use in construction, serving as a basis for manufacturing prefabricated blocks treated at 600°C. These elements can be used for applications with large deformations, or with mechanical or acoustic vibrations.
Key words: Light mortar / heat treatment / compressive strength / bending / ductility / elastic modulus.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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