Concept
Palygorskite
Related publications (23)
Hydro-mechanichal characterisation of bentonite/steel interfaces
Alessio Ferrari, Eleni Stavropoulou, Fabiana Sannasardo
The hydromechanical response of a Wyoming-type bentonite (MX-80) and its interface with steel was studied in terms of shear resistance under different hydration levels. A series of shear tests under constant normal stress were performed in total suction co ...
2023Shear strength and shear stiffness analysis of compacted Wyoming-type bentonite
Wyoming-type bentonite is one of the materials to be used as part of the Engineered Barrier System (EBS) in deep geological disposal facilities for the safe disposal of spent nuclear fuel.In the KBS-3 type repository, the canisters containing the spent fue ...
ELSEVIER2023Insights on the role of alumina content and the filler effect on the sulfate requirement of PC and blended cements
Karen Scrivener, Franco Alberto Zunino Sommariva
Understanding the mechanism controlling the sulfate requirement of blended cements is crucial for a successful deployment of these technologies towards a more sustainable industry. Particularly, clarification regarding the role of alumina content on the su ...
PERGAMON-ELSEVIER SCIENCE LTD2022The effect of paste composition, aggregate mineralogy and temperature on the pore solution composition and the extent of ASR expansion
Karen Scrivener, Barbara Lothenbach, Mahsa Bagheri
The reaction kinetics of the alkali silica reaction depends on the composition of the pore solution. The evolution of the pore solution composition in different cement pastes and concretes was studied. Pastes containing silica fume or metakaolin had the lo ...
SPRINGER2022Inorganic and Metal-Organic Heterogeneous Catalysts for Hydrogen Energy Applications
The main focus of this thesis is the exploration of inorganic and metal-organic heterogeneous catalysts for hydrogen (H2) energy applications. In particular, we investigated metal nanoparticles (NPs) and metal-organic frameworks (MOFs) for their employment ...
EPFL2021Stability of hydrate assemblages and properties of cementitious systems with higher alumina content
Two low CO2 cement systems are investigated: one made with the use of supplementary cementitious materi-als (SCMs) (metakaolin and limestone) and the other an alternative binder, calcium sulfoaluminate cement (CSA). These two low CO2 cements contain a simi ...
EPFL2021Limestone calcined clay cements (LC3): raw material processing, sulfate balance and hydration kinetics
Franco Alberto Zunino Sommariva
Limestone calcined clay cements (LC3) are blended cements that combine clinker, limestone, calcined clay and gypsum. The availability of the materials required to produce LC3 and the good performance that it achieves, makes LC3 suitable as a sustainable re ...
EPFL2020The influence of the filler effect on the sulfate requirement of blended cements
Karen Scrivener, Franco Alberto Zunino Sommariva
In some blended cements, the optimum amount of sulfate addition differs from that observed in OPC. This study aims to understand the mechanism behind the impact of two SCMs, namely metakaolin and limestone, on the sulfate balance of blended cements. No sig ...
PERGAMON-ELSEVIER SCIENCE LTD2019Autogenous Shrinkage and Creep of Limestone and Calcined Clay Based Binders
Karen Scrivener, Julien Ston, Adrien Jean Régis Maurice Hilaire
This study explored the delayed strains in limestone and calcined clay ternary blends. Autogenous shrinkage measurements are carried out over 2 months and compressive basic creep tests during 28 days after one month of curing. All tests are done using mixe ...
SPRINGER2018Influence of calcium and magnesium carbonates on hydration kinetics, hydrate assemblage and microstructural development of metakaolin containing composite cements
Mohsen Ben Haha, Pawel Tadeusz Durdzinski
The hydration of metakaolin composite cements containing quartz, natural limestone and dolomite rock is studied using a multi-method approach and modelling. The study demonstrates that the calcite present in limestone and dolomite rock is very reactive. Co ...
PERGAMON-ELSEVIER SCIENCE LTD2018