Comparison on the durability of different portland cements after five years exposure to sulfate and to sea water attack

López Sánchez, Pedro; Fernandez Gomez, Jaime Antonio y Moragues Terrades, Amparo (2011). Comparison on the durability of different portland cements after five years exposure to sulfate and to sea water attack. En: "13th International Congress on the Chemistry of Cement", 03/07/2011 - 08/07/2011, Madrid, España.

Descripción

Título: Comparison on the durability of different portland cements after five years exposure to sulfate and to sea water attack
Autor/es:
  • López Sánchez, Pedro
  • Fernandez Gomez, Jaime Antonio
  • Moragues Terrades, Amparo
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 13th International Congress on the Chemistry of Cement
Fechas del Evento: 03/07/2011 - 08/07/2011
Lugar del Evento: Madrid, España
Título del Libro: Proceedings fo 13th International Congress on the Chemistry of Cement
Fecha: 2011
Materias:
Escuela: E.T.S.I. Caminos, Canales y Puertos (UPM)
Departamento: Ingeniería Civil: Construcción
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Experimental research has been performed to relate specific cement characteristics to deterioration due to sulfate and sea water attack after five year exposure, and to study different test method suitability for sulfate and marine resistance. Sulfate resistance testing have been performed on mortar specimens made with fifteen cement types of statistically diverse chemical composition according to European standard EN 197-1, most of them with sulfate resistant properties according to Spanish regulations. Chemical and mechanical characteristics were studied to determine the variation in properties of selected cements. SO3 content, type and amount of additions, C3A, and C4AF content were used to examine relationships between these characteristics and the results of sulfate resistance. Mortar specimens testing using Na2SO4 as the aggressive medium according to ASTM 1012 (with w/c ratio adapted to prENV 196-X:1995) was performed using each type of cement; identical specimens were also stored in sea water, and in lime saturated water (blank condition), up to five year age. Additionally these cements were tested conforming ASTM 452 and Koch and Steinegger test. Recommended acceptance limits for sulfate resistance of cements concerning to each used test method were evaluated in order to explore their suitability. Relationships between cement characteristics, degradation, expansive products obtained by X-ray diffraction techniques and maximum expansion after applied storage treatments, were correlated at final age, to redefine cement characteristics for sulfate resistant and marine resistant Portland cement

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ID de Registro: 12553
Identificador DC: http://oa.upm.es/12553/
Identificador OAI: oai:oa.upm.es:12553
Depositado por: Memoria Investigacion
Depositado el: 07 Ago 2012 08:24
Ultima Modificación: 21 Abr 2016 11:49
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