Comparison and study of mechanical and physical properties of metakaolin reinforced gypsum composite

• Autorzy: Moradi Hossein , Azima Saba , Ebrahimi-Kahrizsangi Reza
• Języki publikacji: EN

Abstrakty

EN

This study investigated the effect of creating a composite of gypsum with metakaolin as well as the physical and mechanical behavior of the produced composites. For this purpose, gypsum composites were prepared with 2.9, 4.8, 6.5, and 9 wt.% metakaolin in 100 g of gypsum and a constant content of water. To determine the mechanical properties of the composites, the compressive strength test was used and the porosity, water absorption percentage, and bulk density of the composites were obtained using the Archimedes method. The results showed that the porosity was reduced by adding up to 7 wt.% metakaolin to the gypsum specimens, it increases the compressive strength by 41% and also raises the Young’s modulus of gypsum by 121%. Scanning electron microscopy (SEM) equipped with energy-dispersive X-ray spectroscopy (EDS) was employed for the microstructural evaluations. The EDS-SEM observations showed the presence of Al and Si elements in the fracture zones. The presence of metakaolin elements at one point increases resistance in that area. Metakaolin-reinforced gypsum composites can be used in boards and panels.

Słowa kluczowe

EN

gypsum composite; metakaolin; mechanical behavior; compressive strength; Young’s modulus

PL

kompozyt gipsowy; metakaolin; zachowanie mechaniczne; wytrzymałość na ściskanie; moduł Younga

• Wydawca: Polskie Towarzystwo Materiałów Kompozytowych
• Czasopismo: Composites Theory and Practice
• Rocznik: 2023
• Tom: R. 23, nr 3
• Strony: 129--135
• Opis fizyczny: Bibliogr. 34 poz., rys.

Twórcy

autor

Moradi Hossein

• Islamic Azad University, Najafabad Branch, Department of Architecture, Najafabad, Iran
• Islamic Azad University, Najafabad Branch, Materials Engineering Department, Advanced Materials Research Center, Najafabad, Iran

autor

Azima Saba

• Islamic Azad University, Najafabad Branch, Department of Architecture, Najafabad, Iran

autor

Ebrahimi-Kahrizsangi Reza

• Islamic Azad University, Najafabad Branch, Materials Engineering Department, Advanced Materials Research Center, Najafabad, Iran

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).