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Contribution à la compréhension de l'action des agents réducteurs de retrait dans les matériaux cimentaires : étude expérimentale et modélisation

Abstract : Concrete shrinkage and the cracking that it causes represent a fundamental problem in construction, which may have consequences on the structutal, aestheticand durability aspects. Shrinkage Reducing Admixtures (SRA) are organic chemicals that can be used to minimize the drying shrinkage of Portland-cement-based concretes.The major objective of this work is to set up a methodology for observing and ideally also modeling the behavior of the SRA during the hydration and drying processes. So the PhD will include experimental work able to highlight some features missing in the litterature and to develop a new methodology for investigating the SRA mechanism. The PhD will also include a modeling part involving poromechanics and physico-chemical theories
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Hafsa Rahoui. Contribution à la compréhension de l'action des agents réducteurs de retrait dans les matériaux cimentaires : étude expérimentale et modélisation. Génie civil. Université Paris-Est, 2018. Français. ⟨NNT : 2018PESC1166⟩. ⟨tel-02914637⟩

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