Eco-performant mortar with clay shale from Settat, Morocco: Thermal, mechanical, and environmental analysis

• Autorzy: Souileh Ayoub , Ouadif Latifa , Baba Khadija , Doughmi Khaoula , Masrour Ilham , Mabrouk Achraf , Chrachmy Mohammed , Benhaddou Khadija

Identyfikatory

DOI

10.12911/22998993/195975

• Języki publikacji: EN

Abstrakty

EN

This study investigates the use of clay shale from the Settat-Khouribga region in Morocco as a sustainable substitute for sand in mortar, targeting improvements in thermal insulation, mechanical strength, and environmental impact. Mortar samples were prepared with varying clay shale contents (5%, 15%, and 25%), combined with CPJ45 cement and a 0.5 water-to-cement ratio. These samples were rigorously tested for thermal conductivity, diffusivity, specific heat, compressive strength, and flexural strength over curing periods of 1, 7, and 28 days. The findings indicate that incorporating clay shale significantly reduces the mortar’s thermal conductivity, with the 25% shale content achieving the lowest thermal conductivity of 0.6 W/m· K after 28 days, making it highly effective for insulation. However, the 15% clay shale mix emerged as the optimal balance, providing both enhanced insulation and structural performance, with compressive strength reaching 18 MPa at 28 days comparable to standard mortars. Flexural strength in the 15% mix also showed stability, suggesting suitability for structural applications. Environmentally, using clay shale decreases dependence on natural sand and lowers carbon emissions associated with mortar production. This research demonstrates that clay shale-modified mortars are a viable solution for sustainable construction, particularly in regions with readily available clay shale, supporting global efforts toward greener building practices.

Słowa kluczowe

EN

clay shale; sustainable construction; thermal conductivity; compressive strength; eco-friendly mortar; environmental impact

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2025
• Tom: Vol. 26, nr 3
• Strony: 86--98
• Opis fizyczny: Bibliogr. 38 poz., rys., tab.

Twórcy

autor

Souileh Ayoub

• Laboratory of Applied Geophysics, Geotechnics, Engineering Geology, and Environmental (L3GIE), Mohammadia Engineering School, Mohammed V University in Rabat, Morocco

• https://orcid.org/0009-0001-7754-8109

autor

Ouadif Latifa

• Laboratory of Applied Geophysics, Geotechnics, Engineering Geology, and Environmental (L3GIE), Mohammadia Engineering School, Mohammed V University in Rabat, Morocco

• https://orcid.org/0000-0002-4613-1124

autor

Baba Khadija

• Civil and Environmental Engineering Laboratory (LGCE), Mohammadia Engineering School, Mohammed V University in Rabat, Morocco

• https://orcid.org/0000-0003-4603-4321

autor

Doughmi Khaoula

• Civil and Environmental Engineering Laboratory (LGCE), Mohammadia Engineering School, Mohammed V University in Rabat, Morocco

• https://orcid.org/0000-0001-6665-4742

autor

Masrour Ilham

• Civil and Environmental Engineering Laboratory (LGCE), Mohammadia Engineering School, Mohammed V University in Rabat, Morocco

autor

Mabrouk Achraf

• LAFH, Faculty of Sciences and Techniques, Hassan 1st University, BP 577, 26000, Settat, Morocco

• https://orcid.org/0000-0002-4146-8211

autor

Chrachmy Mohammed

• LMEENR, Faculty of Science and Technology, Moulay Ismail University, Errachidia, Morocco

• https://orcid.org/0009-0002-6528-5257

autor

Benhaddou Khadija

• Laboratory of Applied Geophysics, Geotechnics, Engineering Geology, and Environmental (L3GIE), Mohammadia Engineering School, Mohammed V University in Rabat, Morocco

• https://orcid.org/0009-0004-4216-5433

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