Publications associées à Ciment

Karen Scrivener, Arnaud Charles Albert Muller

The effect of increasing sulfate contents on the hydration of white cement was studied with a multi-technique approach. Quantitative X-Ray Diffraction (XRD) revealed that adding more gypsum in the cement resulted in more ettringite formation. Combining iso ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Visco-elastic behavior of blended cement pastes at early ages

Karen Scrivener, Zhangli Hu, Adrien Jean Régis Maurice Hilaire, Pietro Lura

This study aims at elucidating the visco-elastic behavior of hardening blended cement pastes, focusing on uni-axial basic compressive creep tests at early loading ages. Cement pastes with Portland cement only or blended with quartz or fly ash (both at a su ...

ELSEVIER SCI LTD2020

Evolution of microstructural changes in cement paste during environmental drying

Karen Scrivener, Fabien Jacques Michel Georget, Hamed Maraghechi, Wioletta Soja

Exposure of concrete to the atmosphere changes the microstructure of the cement paste. However, knowledge about the alteration of the porosity due to drying is typically not considered in deterioration processes of the hardened cement paste. The purpose of ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Unravelling chloride transport/microstructure relationships for blended-cement pastes with the mini-migration method

Karen Scrivener, Fabien Jacques Michel Georget, William Wilson

A chloride mini-migration method is proposed to estimate effective diffusion coefficients at the scale of the cement paste and to investigate mechanisms with complementary microstructure analyses on the same material. Blended-cement pastes with a wide rang ...

2020

The Atomic-Level Structure of Cementitious Calcium Aluminate Silicate Hydrate

David Lyndon Emsley, Karen Scrivener, Paul Bowen, Pierrick Berruyer, Brennan James Walder, Pinelopi Moutzouri, Aslam Kunhi Mohamed, Jirawan Siramanont, Maya Nicole Harris, Mattia Negroni

Despite use of blended cements containing significant amounts of aluminum for over 30 years, the structural nature of aluminum in the main hydration product, calcium aluminate silicate hydrate (C-A-S-H), remains elusive. Using first-principles calculations ...

AMER CHEMICAL SOC2020

Effect of a novel starch-based temperature rise inhibitor on cement hydration and microstructure development

Karen Scrivener, Alexandre Reda Constantin William Caleb Ouzia, Cheng Yu

This study investigates the mechanism by which a novel starch-based admixture named Temperature Rise Inhibitor (TRI) modifying cement hydration and limiting heat evolution. This admixture is designed to avoid thermal cracking of concrete. Depending on the ...

PERGAMON-ELSEVIER SCIENCE LTD2020

The reaction between metakaolin and limestone and its effect in porosity refinement and mechanical properties

Karen Scrivener, Franco Alberto Zunino Sommariva

n limestone calcined clay cements (LC3), more hemicarboaluminate and monocarboaluminate is observed, as compared to other blended cements, from the reaction of metakaolin with limestone. In this study, it is shown that the formation of these carboaluminate ...

2020

Understanding the carbonation of concrete with supplementary cementitious materials: a critical review by RILEM TC 281-CCC

Karen Scrivener, Barbara Lothenbach

Blended cements, where Portland cement clinker is partially replaced by supplementary cementitious materials (SCMs), provide the most feasible route for reducing carbon dioxide emissions associated with concrete production. However, lowering the clinker co ...

SPRINGER2020

The Influence of some calcined clays from Nigeria as clinker substitute in cementitious systems

Karen Scrivener, François Henri Avet, Akindehinde Ayotunde Akindahunsi

This paper examines the possibility of the use of some clays calcined from Nigeria as partial substitutes for clinker in the production of Limestone Calcined Clay Cement (LC3). The clays were calcined in the oven at a temperature of 800 degrees C and for o ...

ELSEVIER2020

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Ciment

Effect of sulfate on C-S-H at early age

Visco-elastic behavior of blended cement pastes at early ages

Evolution of microstructural changes in cement paste during environmental drying

Unravelling chloride transport/microstructure relationships for blended-cement pastes with the mini-migration method

The Atomic-Level Structure of Cementitious Calcium Aluminate Silicate Hydrate

Effect of a novel starch-based temperature rise inhibitor on cement hydration and microstructure development

Limestone calcined clay cements (LC3): raw material processing, sulfate balance and hydration kinetics

The reaction between metakaolin and limestone and its effect in porosity refinement and mechanical properties

Understanding the carbonation of concrete with supplementary cementitious materials: a critical review by RILEM TC 281-CCC

The Influence of some calcined clays from Nigeria as clinker substitute in cementitious systems

Graph Chatbot

Chattez avec Graph Search

Unravelling chloride transport/microstructure relationships for blended-cement pastes with the mini-migration method

The reaction between metakaolin and limestone and its effect in porosity refinement and mechanical properties

The Atomic-Level Structure of Cementitious Calcium Aluminate Silicate Hydrate

Effect of sulfate on C-S-H at early age

Evolution of microstructural changes in cement paste during environmental drying

Understanding the carbonation of concrete with supplementary cementitious materials: a critical review by RILEM TC 281-CCC

Limestone calcined clay cements (LC3): raw material processing, sulfate balance and hydration kinetics

The Influence of some calcined clays from Nigeria as clinker substitute in cementitious systems

Visco-elastic behavior of blended cement pastes at early ages

Effect of a novel starch-based temperature rise inhibitor on cement hydration and microstructure development