Downloads provided by UsageCounts
handle: 10261/6307
[ES] En este trabajo se realiza un estudio comparativo del comportamiento durable frente a diferentes tipos de agresión de un cemento comercial (sistema de referencia) y un nuevo material cementante elaborado mediante la mezcla de ceniza volante con una disolución de NaOH 8M (sin OPC). En concreto se realizaron estudios para determinar la durabilidad frente a diferentes disoluciones agresivas (agua desionizada, agua de mar, disolución de sulfato sódico 4,4%, disolución de HCl 0.1N), durabilidad frente a la reacción sílice-álcali, así como su comportamiento a elevadas temperaturas. Los principales parámetros estudiados fueron: perdidas de peso, resistencias mecánicas a compresión, variaciones de volumen, identificación de los productos de degradación y observación de cambios micro-estructurales.
[EN] The study described in the present paper addresses the comparative durability behaviour between a new cementitious material made from alkali-activated fly ash (AAFA) with 8M NaOH solution and an ordinary Portland cement (reference system) under different conditions. Cements performance was observed in a number of aggressive environments (deionized water, ASTM seawater, 4.4% sodium sulphate solution and acidic solutions 0.1NHCl); additionally durability respect to alkali-silica reaction and the behaviour at high temperature was also studied. The chief parameters under control were: weight loss, compressive strength, variations in volume, presence of the products of degradation and microstructural changes.
Comunicación presentada en las II Jornadas de Investigación en Construcción: "60 años de Informes de la Construcción", celebradas los pasados 22, 23 y 24 de mayo de 2008 en el Instituto "Eduardo Torroja" de Ciencias de la Construcción (IETCC-CSIC) de Madrid.
Peer reviewed
Ordinary Portland cement, Durability studies, Microstructural analysis, Análisis microstructural, Procesos de degradación, High temperatures, Cementos de ceniza volante, Degradation processes, Aggresive solutions, Reacción sílice-álcali, Cemento comercial, Alkali-silica reaction, Temperaturas elevadas, Disoluciones agresivas, Fly ash cements, Estudio de durabilidad
Ordinary Portland cement, Durability studies, Microstructural analysis, Análisis microstructural, Procesos de degradación, High temperatures, Cementos de ceniza volante, Degradation processes, Aggresive solutions, Reacción sílice-álcali, Cemento comercial, Alkali-silica reaction, Temperaturas elevadas, Disoluciones agresivas, Fly ash cements, Estudio de durabilidad
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
| views | 27 | |
| downloads | 35 |

Views provided by UsageCounts
Downloads provided by UsageCounts