Extrudable Reactive Powder Concretes Hydration, shrinkage and transfer propertiesReportar como inadecuado

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1 GeM - Institut de Recherche en Génie Civil et Mécanique 2 LSI - UMR 7642 - Laboratoire des Solides Irradiés 3 Université d-Artois - Site de Béthune

Abstract : The behavior of five reactive powder concretes RPC, with four of them being extrudable, has been studied since the first minutes up to more than 90 days. The extrusion force, hydration rate, free autogenous shrinkage at early age, mechanical properties and durability parameters were measured. The performance analysis showed the benefits of a partial substitution of silica fume with crushed quartz on the RPC properties. The cost-performances analysis highlighted that the main advantage of using RPC lies in their potential of durability, which is 10 to 100 times higher than that of ordinary or high-performance concretes, according to the property considered.

Keywords : Reactive powder concrete extrusion hydration shrinkage durability Ultra High Performance Concrete

Autor: Pierre Mounanga - Khalid Cherkaoui - Abdelhafid Khelidj - Mireille Courtial - Marie-Noëlle De Noirfontaine - Frederic Dunstetter

Fuente: https://hal.archives-ouvertes.fr/


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