Výsledky vyhledávání - "Carlos A. Rosas-Casarez"

Excitation-dependent photoluminescent properties in geopolymers with addition of Eu2+ Dy3+ co-doped strontium silicoaluminate

Autor: Jayaramakrishnan Velusamy, R.A. Zárraga-Núñez, José Manuel Gómez-Soberón, Susana Paola Arredondo-Rea, J.J. Campos-Gaxiola, Ramón Corral-Higuera, Carlos A. Rosas-Casarez, A. Cruz-Enríquez, Gabriel Ramos-Ortiz

Publikováno v: Materials Letters. 250:170-173

Optical properties of blast furnace slag based geopolymers synthesized at 60 °C with additions of 4, 12 and 20% of Sr2.9Eu0.03Dy0.07Al4SiO11 (SEDASO) are studied. In the photoluminescence spectra, the geopolymers exhibit two broad emission bands: in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4fcad7638573c69c7673bc8fd6e04435
https://doi.org/10.1016/j.matlet.2019.05.017

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Recycled Mortars with Ceramic Aggregates. Pore Network Transmutation and Its Relationship with Physical and Mechanical Properties

Autor: Jorge Luis Almaral-Sánchez, Francisca Guadalupe Cabrera-Covarrubias, Carlos A. Rosas-Casarez, Jesús Manuel Bernal-Camacho, José Manuel Gómez-Soberón

Publikováno v: Materials
Volume 14
Issue 6
Materials, Vol 14, Iss 1543, p 1543 (2021)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The porosity of mortars with recycled ceramic aggregates (10, 20, 30, 50, and 100% as a replacement of natural aggregate) was evaluated and analyzed using three different techniques. The results of gas adsorption (N2), Scanning Electron Microscopy (S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7faafeac20b8c8779da75718e128f459

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Durability parameters of reinforced recycled aggregate concrete: Case study

Autor: Carlos A. Rosas-Casarez, Ramón Corral-Higuera, J. M. Bernal-Camacho, José Manuel Gómez-Soberón, M. J. Ungsson-Nieblas, Susana Paola Arredondo-Rea, Diana Carolina Gámez-García

Publikováno v: Applied Sciences, Vol 9, Iss 4, p 617 (2019)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
Applied Sciences
Volume 9
Issue 4

Recycled concrete aggregate (RA) from pavement demolition was used to make concrete. Ten concrete mixtures with different replacement percentages of RA (coarse and fine) were made. The corrosion rate of steel and the electrical resistivity of concret

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2373895f4b54eaf836ea3082cdffe992
https://hdl.handle.net/2117/129908

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SEM image analysis in permeable recycled concretes with silica fume. A quantitative comparison of porosity and the ITZ

Autor: Manuel J. Chinchillas-Chinchillas, Ramón Corral-Higuera, José Manuel Gómez-Soberón, Carlos A. Rosas-Casarez, Susana Paola Arredondo-Rea

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Materials
Recercat. Dipósit de la Recerca de Catalunya
instname
Materials, Vol 12, Iss 13, p 2201 (2019)
Volume 12
Issue 13

Recycled aggregates (RA) from construction and demolition can be used in permeable concretes (PC), improving the environment. PCs have a significant porous network, their cement paste and the interaction between the paste and the RA establishing thei

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91467d10d5b78f2f8842f11d77532b3f
http://hdl.handle.net/2117/166779

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Influence of size reduction of fly ash particles by grinding on the chemical properties of geopolymers

Autor: Adriana Cruz-Enríquez, Ramón Corral-Higuera, Teresita de Jesús Medina-Serna, Susana Paola Arredondo-Rea, Carlos A. Rosas-Casarez, Manuel J. Pellegrini-Cervantes, José Manuel Gómez-Soberón

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Applied Sciences; Volume 8; Issue 3; Pages: 365
Recercat. Dipósit de la Recerca de Catalunya
instname
Applied Sciences, Vol 8, Iss 3, p 365 (2018)

Chemical properties of geopolymers were evaluated from the reduction of fly ash particle size by grinding. X-ray diffraction determined that at early curing ages new crystalline phases appear in the matrix of the geopolymer and they remain for 28 day

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30d1a1ade45bb2b0cabafe85191c241e
http://hdl.handle.net/2117/116029

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Effect of curing temperature in the alkali-activated blast-furnace slag paste and their structural influence of porosity

Autor: Teresita de Jesús Medina-Serna, Susana Paola Arredondo-Rea, José Manuel Gómez-Soberón, Carlos A. Rosas-Casarez, Ramón Corral-Higuera

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Advances in Science and Technology Research Journal, Vol 10, Iss 31, Pp 74-79 (2016)
Recercat. Dipósit de la Recerca de Catalunya
instname

Due to the environmental problem posed by the use of Portland cement as construction material, it becomes necessary the search for supplementary cementitious materials that mitigate the ecological damage caused by it. Because the chemical similarity

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c24a5ef29eca4816a44487662309be5a
http://hdl.handle.net/2117/91477

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