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Prof. Taha Hassan Mokhtar Ashour :: Publications:

Engineering Parameters of Rice Straw Concrete with Granulated Blast Furnace Slag
Authors: Taha Ashour, Mohamad Morsy, Azra Korjenic, Henriette Fischer, Mervat Khalil, Eldira Sesto, Mohammed Orabi and Ibrahim Yehia
Year: 2021
Keywords: rice straw concrete; straw particles; fibers; mechanical properties; cement-based composites
Journal: Energies
Volume: 14
Issue: 2
Pages: 343
Publisher: MDPI
Local/International: International
Paper Link:
Full paper Taha Hassan Mokhtar Ashour_Engineering Parameters of Rice Straw Concrete with Granulated Blast Furnace Slag.pdf
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The construction industry is responsible for a large amount of both embodied carbon and emissions. Especially with concrete, there is still a lot of potential for designing recipes in a more ecological way. Approaches to reduce the environmental impact of concrete include the use of industrial and agricultural by-products. This study combines the approaches of replacing cement with granulated blast furnace slag and the use of NaOH-treated rice straw fibers. The research objective comprises the design of an ecologically optimized concrete as well as the question of whether a pretreatment of rice straw fibers with NaOH improves the performance of the designed concrete. The method includes mechanical and physical testing of the of the designed concrete as well as an optical analysis with a scanning electron microscope. The results indicated that treating rice straw with 1% NaOH indicates a better bond between fibers and the surrounding matrix. The tests in which the rice straw was treated with NaOH achieved a higher density, splitting strength, tensile strength and compressive strength. The study contributes an ecologically optimized concrete with granulated blast furnace slag and NaOH-treated rice straw concrete, which shows a great potential as an environmentally friendly, low-cost construction material.

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