@prefix rdf: . @prefix ns1: . @prefix frbr: . ns1:id rdf:type frbr:Work . @prefix rdac: . ns1:id rdf:type rdac:C10001 . @prefix marcrel: . @prefix ns5: . ns1:id marcrel:ths ns5:id . @prefix ns6: . ns1:id marcrel:aut ns6:id . @prefix skos: . ns1:id skos:altLabel "Thermomechanical behavior of a refractory concrete : mineral fibers reinforcement effects" . @prefix dc: . ns1:id dc:subject "B\u00E9ton" , "Fibres c\u00E9ramiques" , "B\u00E9tons r\u00E9fractaires" , "Fibres min\u00E9rales" , "Microstructure" , "B\u00E9ton de fibres" , "Fibres de verre" , "Mat\u00E9riaux r\u00E9fractaires -- Propri\u00E9t\u00E9s thermom\u00E9caniques" , "Comportement thermom\u00E9canique" , "C\u00E9ramiques et verre" , "Th\u00E8ses et \u00E9crits acad\u00E9miques" ; skos:prefLabel "Comportement thermom\u00E9canique d'un b\u00E9ton r\u00E9fractaire, effets du renforcement par des fibres min\u00E9rales" . @prefix dcterms: . @prefix ns10: . ns1:id dcterms:language ns10:fra . @prefix ns11: . ns1:id dcterms:subject ns11:id . @prefix ns12: . ns1:id dcterms:subject ns12:id . @prefix ns13: . ns1:id dcterms:subject ns13:id . @prefix ns14: . ns1:id dcterms:subject ns14:id . @prefix ns15: . ns1:id dcterms:subject ns15:id . @prefix ns16: . ns1:id dcterms:subject ns16:id . @prefix ns17: . ns1:id dcterms:subject ns17:id ; dc:title "Comportement thermom\u00E9canique d'un b\u00E9ton r\u00E9fractaire, effets du renforcement par des fibres min\u00E9rales" . @prefix ns18: . ns1:id marcrel:dgg ns18:id ; skos:note "Dans ce travail, un b\u00E9ton r\u00E9fractaire silico-alumineux \u00E0 base de granulats d'andalousite et \u00E0 basse teneur en ciment a \u00E9t\u00E9 renforc\u00E9 par des fibres min\u00E9rales. Elles appartiennent \u00E0 deux grandes familles : les fibres de verre et les fibres \u00E0 haute teneur en alumine. Le comportement thermom\u00E9canique du b\u00E9ton fibr\u00E9 a \u00E9t\u00E9 caract\u00E9ris\u00E9 et analys\u00E9. Les m\u00E9canismes microm\u00E9caniques et microstructuraux qui pilotent ces comportements ont \u00E9t\u00E9 identifi\u00E9s. Ce travail a \u00E9t\u00E9 fait d'une part \u00E0 20\u00B0C, en tenant compte de l'influence de la temp\u00E9rature de cuisson et d'autre part \u00E0 haute temp\u00E9rature, apr\u00E8s cuisson. Cette \u00E9tude se base sur des r\u00E9sultats d'essais m\u00E9caniques jusqu'\u00E0 1 200\u00B0C, sur des observations microstructurales et sur la connaissance \u00E9tablie dans le domaine des b\u00E9tons r\u00E9fractaires non fibr\u00E9s et fibr\u00E9s mais \u00E9galement dans celui des b\u00E9tons de g\u00E9nie civil fibr\u00E9s. La d\u00E9marche est bas\u00E9e sur l'\u00E9tablissement de relations entre la microstructure et le comportement thermom\u00E9canique, en consid\u00E9rant tout particuli\u00E8rement l'endommagement aux basses temp\u00E9ratures ainsi que l'endommagement et la visco-plasticit\u00E9 aux hautes temp\u00E9ratures." , "Adding fibres in concretes can modify their mechanical behaviour. Changes essentially depend on the geometry and on the composition of introduced fibres (metal, glasses, ceramics...), on their volume fraction, on the requested temperature and on the thermomechanical behaviour of the reinforced material. The concrete is a damageable material with a brittle or quasi-brittle behaviour whose properties in direct tension are the weakest. Main objective of the fibre reinforcement is to improve the tension behaviour. Fibres can delay the damage localization phenomenon, can increase the material deformation capacity, can allow a resumption of load after cracking and can increase the peak stress level. These characteristics are also representative of the case of refractory concretes. However, the temperature plays a major role on their mechanical behaviour and microstructural evolutions. The aim of this study is to obtain a better understanding of the thermomechanical behaviour and of the microstructural evolutions of refractory concretes reinforced with mineral fibres. Thus mechanical tests and microstructure observations have been performed in a wide temperature range. Mechanical tests deal with tension tests and four point bending tests. Main microstructure observations have been done by scanning electron microscopy. Complementary results of mechanical tests and microstructural observations have made possible to interpret the behaviour of the reinforced refractory concretes, particularly in terms of reinforcement mechanisms up to 1200\u00B0C." ; dc:type "Text" . @prefix ns19: . @prefix ns20: . ns1:id ns19:P1001 ns20:T1009 . @prefix rdaw: . ns1:id rdaw:P10219 "2009" . @prefix rdau: . ns1:id rdau:P60049 .