Wageeh Ramadan on Muck Rack

Wageeh Ramadan

As seen in: Nature
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Articles

Bifunctional epoxy coatings containing new nano-hybrid based on lignin for decoration and gamma radiation shielding

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By Walaa M. Abd El-Gawad, Wageeh Ramadan, Galal A. M. Nawwar, Khlood S. Abdel Zaher
| Nature
Abstract Recently, researchers focused on utilizing agricultural waste, such as rice straw, to prepare eco-friendly green compounds that have industrial applications, rather than burning it, which leads to environmental problems. In this study, a new Mn (lignin/silica/fatty acid) nano-hybrid Mn(LSF) was deposited from the black liquor of rice straw and then mixed with epoxy to prepare bifunctional epoxy coatings for decoration and gamma radiation shielding.
Open in Who Shared Issue with article?

Assessing graphite schist as a supplementary cementitious material in concrete for antifungal activity, strength, hydration, microstructure, and radiation shielding

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By Aya I. Tagyan, Bahaa S. Metwally, Alaa Rashad, Ahmed Abdelgwad, Mohamed Abdelaziz, M. Masoud, Mostafa Serry, A. M. Zayed, Wageeh Ramadan, Hussain Shendy, A. M. El-Khayatt, W. A. Kansouh, M. G. Shahien
| Nature
Abstract For the first time, this study explores the valorization of graphite schist (GS), a metamorphic rock, as a novel supplementary cementitious material (SCM) in concrete. Portland cement (PC) was partially replaced with GS at 0, 10, and 15% by mass to prepare CC (control), GC10, and GC15 mixes, respectively. Physical, mechanical, hydration, microstructural, and radiation shielding properties were investigated.
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