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Optimización de soldadura por fricción-agitación de la aleación de aluminio aa 6261-t5 mediante aplicación de metodología de superficie de respuesta
(Revista Latinoamericana de Metalurgia y Materiales, 2013-02)
This article reports the results of applying the response surface methodology to evaluate the tensile strength in joints obtained by the process of friction-stir welding (SFA), depending on the speed of rotation of the ...
Influencia del residuo de mampostería (RM) como material cementicio suplementario en la elaboración de morteros
(SENA - Servicio Nacional de Aprendizaje, 2017-06-28)
Portland cement production is responsible for approximately 5% of global emissions of carbon dioxide (CO2) around the world. An Important contribution to the sustainability of this ...
Optimización de la resistencia a compresión usando un diseño de mezcla de vértices extremos, en concretos ternarios basados en residuo de mampostería y cal hidratada
(Universidad EIA, Envigado, Colombia, 2019)
The search for alternative materials that partially substitute Portland cement is important because of the environmental problems that this presents in its production, hence the need to investigate the use of ternary ...
Mezcla ternaria de cemento Portland, escoria de alto horno y piedra caliza: resistencia mecánica y durabilidad
(Revista de la Construcción, 2013-12)
The blended cements based on partial replacement of cement by other minerals and / or industrial by-products arise as a technically and environmentally sustainable alternative. These cements are based on the introduction ...
Optimization of the technological properties of porcelain tile bodies containing rice straw ash using the design of experiments methodology
(Elsevier Ltd, 2016-06-28)
This study examines the effects of replacing fluxing and filler materials with rice straw ash (RSA) in manufacturing porcelain stoneware tile, using the design of experiments (DOE) methodology. The results of the ...
Valorización y optimización del residuo de mampostería para la elaboración de concreto autocompactante
(Universidad Nacional de Colombia. Sede Medellín. Facultad de Minas, 2019)
The use of different supplementary cementitious materials (SCM) in the production of self-compacting concretes (SCCs) is an increasingly common practice. In this paper, results of a research about the use of residue of ...
Distribución espacio-temporal de Diatraea spp. (Lepidoptera: Crambidae) en el valle del río Cauca, Colombia
(Sociedad Colombiana de Entomología, SOCOLEN, 2018)
Sugarcane stem borer (Diatraea spp.) damage has increased in the Cauca River Valley (CRV) due to two new species, D. tabernella and D. busckella, which joined the two already known species, D. saccharalis and D. indigenella. ...
Geopolymeric concretes based on fly ash with high unburned content
(Elsevier, 2018-03-20)
This study used fly ash (FA) with a high amount of unburned content (21%) to produce simple (Geo FA) and binary (Geo FA/granulated blast furnace slag [GBFS]) geopolymeric concretes. The effect on the mechanical strength ...
Producción de zeolitas de baja sílice a partir de caolín colombiano
(UNAM. Universidad Nacional Autónoma de México. Facultad de Ingeniería, 2016)
This paper presents a study of the production of a synthetic zeolite of low-silica content by hydrothermal synthesis from Colombian kaolin. The statistical technique Response-Surface Methodology was used to find the optimum ...
Valoración y efectos puzolánicos del material volcánico de Puracé
(2015-01)
This paper reports the results of a research where was evaluated the characteristics and pozzolanic reactivity of the Puracé volcanic material (PVM). This material was analyzed by scanning electron microscope, X-ray ...
