Abstract
This study examines the conservation and restoration of composite materials preserved at the Rusicada Museum in Skikda, Algeria. It highlights the significance of safeguarding archaeological objects composed of different materials, such as metals, wood, glass, and ceramics. The study discusses the challenges encountered in the conservation process due to the diverse physical and chemical properties of these materials and their interactions with environmental factors, including humidity, temperature fluctuations, and pollution. It also reviews the methods used for examination and diagnosis to identify deterioration phenomena, as well as the cleaning, consolidation, and restoration techniques employed while preserving the authenticity and historical value of the artifacts. The study emphasizes that preventive conservation and proper environmental control within museum spaces are essential for protecting archaeological collections and extending their lifespan. These measures contribute significantly to the preservation of cultural heritage and ensure its transmission to future generations.

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