Enhancing the Performance of Fiber Cement Composites through the Incorporation of Aluminum-Zinc Compounds
Keywords:
Composite material, Fiber cement material, Water-repellent properties, Aluminum compounds, Zinc compoundsAbstract
Fiber cement composite is a popular building material produced using advanced manufacturing processes such as the Hatschek process, autoclave, and air curing. Fiber cement products find application in various scenarios, making it necessary to develop their mechanical and physical properties. However, the movement of moisture within the product leads to a reduction in its lifespan. This research aims to create a water-repellent fiber cement product with consistent properties throughout the material by incorporating inorganic compounds such as zinc and aluminum. The specimens underwent mechanical property testing using a universal testing machine. The results showed that the modulus of rupture and the modulus of elasticity of the specimens exceeded industry standards at 9.5 and 8161 MPa, respectively. Physical attributes were evaluated, including bulk density, water absorption, and a contact angle test. It was found that the density of the resulting product increased, and water absorption decreased. The resulting product demonstrates water-repellent properties across its entirety, with a maximum contact angle test measurement of 133.5 degrees. Elemental composition was analyzed using scanning electron microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDS) techniques to determine the presence of the newly formed phases, namely Calcium zinc hydroxide dehydrate and Friedel's salt.
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