期刊
CEMENT & CONCRETE COMPOSITES
卷 90, 期 -, 页码 178-192出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2018.03.023
关键词
Modelling; Continuum micromechanics; Hydration; Porosity; Slag; Limestone
资金
- University of Leeds and HeidelbergCement Technology Centre
This paper describes the underlying principles behind the evolution in performance of ternary composite cements comprising Portland cement clinker, slag and limestone. By using the predicted phase assemblage as an input for the micromechanical model, the mechanisms underlying the evolution of mortar strength and Young's modulus were analyzed and quantified. This allowed the roles of hydrate assemblages and porosity distribution on the evolution of performance to be explained and quantified. Slag hydration results in the formation of a microstructure more efficient for development of compressive strength and elastic stiffness. Limestone further improves microstructure and enhances reactivity of the systems studied.
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