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Monitoring the setting process of eco-binders by ultrasonic P-wave and S-wave transmission velocity measurement: mortar vs concrete

par Carette, Jerome ;Staquet, Stéphanie
Référence Construction & building materials, 110, page (32-41)
Publication Publié, 2016

Article révisé par les pairs

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Résumé :

The concretes investigated are designed as to limit the earlyage cracking risk despite a massive substitution of up to 75% of clinker.In this framework, interest has been shown to mix designs combining thebenefits of ground granulated blast-furnace slag and limestone microfiller.The aim of this study is to evaluate the impact ofenvironmentally friendly cement-based binders on the initial and finalsetting time of mortars and concretes by means of a standard method (ASTMC403), early age compressive strength, elastic modulus, and ultrasonictransmission velocity measurements of P-waves and S-waves. This lastmethod was observed to be a relevant setting indicator for both mortarand concrete samples. Critical influence of both the binder's compositionand the aggregate content has been observed on the setting process.