Listar AM - Grupo de Investigación en Estructuras y Materiales por autor "59ee354f96b0dc2539a68ff9e3950918"
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Analysis of metakaolin as partial substitution of ordinary portland cement in reactive powder concrete
Abellán-García, Joaquín; Torres, Nancy; Santofimio V, Maria (ASTM International, 2020)Over the last 20 years, remarkable advances have taken place in the research on reactive powder concrete (RPC). However, because of the high contents of cement and silica fume (SF) usually used in those types of concrete, ... -
Chloride ion resistance of self-compacting concretes incorporating volcanic materials
Burgos, Diana M.; Guzmán, Álvaro; Torres, Nancy; Delvasto, Silvio (Elsevier Ltd.Reino Unido., 2017)This paper examines the effect of incorporating considerable amounts of Colombian volcanic material to self-compacting concrete (SCC) as a pozzolanic addition for rheological improvement, including the effects on the ... -
Evaluación de la metodología de ensayo acelerado de barras de mortero ASTM C 1260 para detectar agregados potencialmente reactivos y las medidas de mitigación de la reacción álcali-sílice ASTM C 1567
Bolívar Murcía, Stefanny; Torres, Nancy (Escuela Colombiana de Ingeniería Julio Garavito, 2018)The alkali-silica reaction is defined as a phenomenon produced by the alkalis (sodium or potassium) of the cement, which react with the silica present in certain aggregates, forming a gel that under conditions of humidity ... -
External strengthening of unreinforced masonry walls with polymers reinforced with carbon fiber
Vega, Camilo; Torres, Nancy (Universidad Nacional de ColombiaBogotá, Colombia., 2018)In many countries, buildings are usually made of unreinforced clay masonry walls, especially in Colombia. These constructions have low resistance and ductility, and are very vulnerable to seismic events, due to their low ...