Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Juan José Howland-Albear"'
Publikováno v:
Revista CENIC Ciencias Químicas, Vol 47, Iss 1, Pp 17-29 (2016)
Se realizó un estudio de estimación de la agresividad corrosiva de la atmósfera, como un resultado preliminar, en el puente Los Caras. Este puente comunica a los cantones (municipios) de Bahía de Caráquez y San Vicente en el estado de Manabí, R
Externí odkaz:
https://doaj.org/article/ba33b3e46a8b4a158644240a62444d55
Autor:
Juan José Howland-Albear, Abel Castañeda-Valdés, Francisco Corvo-Pérez, Ana Rosa Martín Acosta
Publikováno v:
Revista CENIC Ciencias Químicas, Vol 46, Iss 1, Pp 1-8 (2015)
El impacto del ambiente agresivo costero en el litoral norte de La Habana, ha provocado un deterioro intenso y anticipado sobre las estructuras de hormigón armado, debido al fenómeno de la corrosión atmosférica del acero de refuerzo. La existenci
Externí odkaz:
https://doaj.org/article/fda4cd5d967a440eada37ab9c16ac9ef
Autor:
Rigoberto Marrero Águila, Abel Castañeda Valdés, Juan José Howland Albear, Cecilia Valdés Clemente, Francisco Corvo Pérez, Lilia González Ortega, Brenda McNeil Montañés, Juan Carlos Guerra Mera
Publikováno v:
Anales de la Academia de Ciencias de Cuba, Vol 10, Iss 3 (2020)
Introducción. Diversas ramas de la economía demandan estudios sobre protección de materiales en las condiciones especiales de Cuba. Muchas labores se han realizado sin considerar la agresividad corrosiva ambiental. Objetivos: resolver los problema
Externí odkaz:
https://doaj.org/article/9188ad6a1c514a77b96f29b229020fa2
Publikováno v:
Revista Cubana de Ingeniería, Vol 7, Iss 2, Pp 26-32 (2016)
An experimental design of hexagonal type was designed and realized using different proportions of micro and nanosilica in the concrete, under the condition that the sum of the two pozzolans was not over the 9.5% of the cement weight in the concrete m
Externí odkaz:
https://doaj.org/article/93d6c36c428a44109e44839b7229b0c8
Publikováno v:
Revista Cubana de Ingeniería, Vol 5, Iss 1, Pp 11-17 (2014)
The on site concreting of constructions, require some regulations to guide the construction companiesto execute the concreting operations according to the status and potential of existing technologies.In Cuba were used for a long time many regulation
Externí odkaz:
https://doaj.org/article/8bf0eb2b0aba4359a762ac7051ed6a0f
Publikováno v:
Revista Cubana de Ingeniería, Vol 3, Iss 2, Pp 17-24 (2012)
More than the 98 % of the aggregates used in Cuba have a limestone origin, with absorption values more than 1% in the majority of the cases, and with a high porosity too. On the other hand the tests of capillary absorption by Göran Fagerlund method,
Externí odkaz:
https://doaj.org/article/e2c0e7fc76984e7789ed93d68750192e
Publikováno v:
Revista de la construcción v.16 n.3 2017
SciELO Chile
CONICYT Chile
instacron:CONICYT
SciELO Chile
CONICYT Chile
instacron:CONICYT
DOI: 10.7764/RDLC.16.3.374 Abstract A study on concrete quality assessment before building structures submitting to environmental exposure conditions was carried out. It was necessary to determine the ultrasonic velocity pulse, compressive strength a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b4b61b8663476c5ba972ed52e9c0f64
https://doi.org/10.7764/rdlc.16.3.374
https://doi.org/10.7764/rdlc.16.3.374
Publikováno v:
Hormigón y Acero.
Pozzolans of natural origin have been widely used in the manufacture of mortars and concretes for millennia, from the ancient Greeks and Romans civilizations to the present. In the present work, the k factor of the natural pozzolans of the Western re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69f509b9b3e96345ee5e360c03f6dddc
https://doi.org/10.1016/j.hya.2018.06.002
https://doi.org/10.1016/j.hya.2018.06.002
Publikováno v:
Hormigón y Acero.
This paper is motivated because of the absence in Cuban standards of a method to estimate the characteristic concrete compressive strength in existing structures from core test results. The state of the art on the subject is established and the resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28888826a70d046cf7879cda9d2cdd43
https://doi.org/10.1016/j.hya.2018.04.001
https://doi.org/10.1016/j.hya.2018.04.001
Autor:
Juan José Howland Albear, María Shirlendy Guerrero Alcivar, Salomón Brito, Cesar Mauricio Jarre Castro
Publikováno v:
Revista de Investigaciones en Energía, Medio Ambiente y Tecnología: RIEMAT ISSN: 2588-0721; Vol. 2 Núm. 1 (2017): Enero-Junio; 1-5
The cement industry provides the basic material in the production of concrete; but it is one of the most aggressive productions in relation to the environmental component, emitting large amounts of CO2 in the process. Research using new binders that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74cf6a5edaa83de1e03e0c055677d77b
https://doi.org/10.33936/riemat.v2i1.931
https://doi.org/10.33936/riemat.v2i1.931