C
César Medina
Researcher at University of Extremadura
Publications - 79
Citations - 2942
César Medina is an academic researcher from University of Extremadura. The author has contributed to research in topics: Cement & Aggregate (composite). The author has an hindex of 23, co-authored 76 publications receiving 1963 citations. Previous affiliations of César Medina include University of León & Spanish National Research Council.
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Influence of mixed recycled aggregate on the physical – mechanical properties of recycled concrete
TL;DR: In this paper, a feasibility study on the partial replacement of natural coarse aggregate with a poor quality recycled aggregate from construction and demolition waste in the manufacture of concrete of 30MPa strength grade was conducted.
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Reuse of sanitary ceramic wastes as coarse aggregate in eco-efficient concretes
TL;DR: In this article, the authors investigated the reuse of sanitary ceramics wastes as recycled coarse aggregate in partial substitution (15, 20% and 25%) of natural coarse aggregates in the manufacture of structural concretes.
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Properties of interfacial transition zones (ITZs) in concrete containing recycled mixed aggregate
I.F. Sáez del Bosque,Wenzhong Zhu,Torsten Howind,A. Matías,M.I. Sánchez de Rojas,César Medina +5 more
TL;DR: In this paper, the authors investigated the properties of various RA/paste ITZs in concrete using nanoindentation and scanning electron microscopy (SEM) and analyzed the possible impact of the properties on the macro-mechanical performance of recycled concrete.
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Microstructure and properties of recycled concretes using ceramic sanitary ware industry waste as coarse aggregate
TL;DR: In this paper, the authors reported the possibility of substituting 15, 20, and 25% of natural coarse aggregate with recycled ceramic coarse aggregate, and presented an analysis of the resultant effects on the morphology and microstructure of recycled concretes.
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Freeze-thaw durability of recycled concrete containing ceramic aggregate
TL;DR: In this article, the authors explored the durability of concrete made with aggregate containing 20% ceramic sanitary ware industry waste, analysing the scaled surface, exploring aggregate/paste de-bonding and measuring the mean and maximum crack widths in both the paste and at the interfacial transition zone between paste-aggregate after 56 freeze-thaw cycles.