Early-age volume changes of Extrudable Reactive Powder Concrete

Khalid Cherkaoui (1, 2) , Mireille Courtial (2) , Frederic Dunstetter (2) , Abdelhafid Khelidj (1) , Pierre Mounanga (1) , Marie-Noëlle de Noirfontaine (2)

1 GeM - Institut de Recherche en Génie Civil et Mécanique
2 LSI - Laboratoire des Solides Irradiés

This article presents a study on the early-age autogenous deformations of Extrudable Reactive Powder Concretes (ERPCs), especially designed for the making of concrete pipes by extrusion. Different ERPC mixtures, with variable amounts of polycarboxylate superplasticizer (SP), have been investigated. Results on 28-day mechanical properties, early-age hydration rate, autogenous shrinkage and premature cracking risk are analyzed and discussed in relation with the ERPC mix parameters.

Domains: Engineering Sciences [physics]; Civil Engineering; Chemical Sciences; Material chemistry; Engineering Sciences [physics]; Materials

Khalid Cherkaoui, Mireille Courtial, Frederic Dunstetter, Abdelhafid Khelidj, Pierre Mounanga, et al.. Early-age volume changes of Extrudable Reactive Powder Concrete. 14th International Conference on Experimental Mechanics (ICEM14), Jul 2010, Poitiers, France. pp.23005, ⟨10.1051/epjconf/20100623005⟩. ⟨hal-00945184⟩