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PUBLISHER
Research Article
A comparative study of expanded and raw cork waste composite materials
Salem Merabti
Laboratory of Acoustics and Civil Engineering, Faculty of Science and Technology, University Djilali Bounaama of Khemis-Miliana, Algeria
Keywords
Abstract
Cement;
Cork waste;
Strength;
Shrinkage;
Insulation
The use of cork waste in the development of construction materials is an interesting alternative for saving energy and preserving the environment. Cork has excellent thermal and acoustic properties, making it a common choice for building applications. This article presents a comparative study of composites based on expanded and raw cork (L) mixed with cement in C/L ratios of 1/1, 1/2, and 1/3. The physical, mechanical, thermal, and acoustic absorption properties of these composites were investigated. The results show that composites with expanded cork exhibit better compressive strength than those with raw cork. Expanded and raw cork-based compositions in a 1/3 ratio showed compressive strengths of 2.39MPa and 2.00MPa, respectively. However, the composite containing raw cork presents higher thermal conductivity and more favorable acoustic absorption coefficients. The results highlight the potential for using these composite materials as structural or non-structural components, depending on the volume of cork used.
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