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Karen Scrivener

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Related publications (271)

Basic creep of limestone-calcined clay cements: An experimental and numerical approach

This article presents a study on the creep properties of limestone calcined clay cement. A series of paste samples using limestone and calcined clays as replacement materials were tested under basic compressive creep. The ternary mixes showed a lower creep ...

ELSEVIER2019

Factors influencing the hydration kinetics of ye'elimite; effect of mayenite

Mohsen Ben Haha, Karen Scrivener, Frank Bullerjahn

The aim of this study was to understand the origin of the variation in the hydraulic reactivity of ye'elimite systems. To this end, the hydration of two clinkers, one composed mainly of synthetic stoichiometric (C(4)A(3)(S) over bar) "Y" and the other of a ...

Pergamon-Elsevier Science Ltd2019

Impact of temperature on expansive behavior of concrete with a highly reactive andesite due to the alkali-silica reaction

Cyrille Dunant, Karen Scrivener

The influence of temperature on the expansive behavior and microstructural damage of concrete due to the alkali-silica reaction (ASR) is studied experimentally by applying a new testing protocol, the Alkali-Wrapped Concrete Prism Test (AW-CPT). Early-stage ...

Pergamon-Elsevier Science Ltd2019

The 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 Ltd2019

Performance of Limestone Calcined Clay Cement (LC3) with various kaolinite contents with respect to chloride transport (vol 51, 125, 2018)

Karen Scrivener, François Henri Avet, Hamed Maraghechi

Springer2019

Impacting factors and properties of limestone calcined clay cements (LC3)

Karen Scrivener, Julien Ston, François Henri Avet, Aurélie Rosine Favier, Wilasinee Hanpongpun, Hamed Maraghechi, Franco Alberto Zunino Sommariva

This paper details the main factors influencing the performance of limestone calcined clay cements (LC3). The kaolinite content plays a major role in the rheological properties as well as strength development. Even in the presence of secondary phases, kaol ...

ICE PUBLISHING2019

Impact of sodium gluconate on white cement-slag systems with Na2SO4

Karen Scrivener, Thomas Matschei, Berta Mota Gassó

Sodium gluconate has been shown to compensate the impact of alkalis on the long term strength development of cement pastes. This work studies the impact of sodium gluconate combined with Na2SO4 on the microstructural development of white cement-slag system ...

Pergamon-Elsevier Science Ltd2019

Chemical shrinkage of ye'elimite with and without gypsum addition

Mohsen Ben Haha, Karen Scrivener, Frank Bullerjahn

Ye'elimite (Ca4Al6O12SO4 or C(4)A(3)S) is the main hydraulic mineral present in calcium sulphoaluminate cement (CSA). Its reaction is responsible for the (early) hydration and associated cement properties such as the chemical shrinkage. This paper discusse ...

ELSEVIER SCI LTD2019

Advances in understanding cement hydration mechanisms

Patrick Juilland, Karen Scrivener, Aslam Kunhi Mohamed, Alexandre Reda Constantin William Caleb Ouzia

Progress in understanding hydration mechanisms of alite and Portland cement is reviewed. Up to the end of the induction period, dissolution rates determined by the undersaturation of the solution dominate the reaction, but, better understanding is needed a ...

Pergamon-Elsevier Science Ltd2019

Concrete Performance of Limestone Calcined Clay Cement (LC3) Compared with Conventional Cements

Karen Scrivener, Lionel Sofia, François Henri Avet

This study aims to demonstrate the robustness of concrete made of limestone calcined clay cement (LC3). Two campaigns were carried out using 375 kg.m(-3) and 500 kg.m(-3) of binder and targeting plastic and self-placing workability, respectively. The concr ...

AMER SOC TESTING MATERIALS2019

Quantification of amorphous siliceous fly ash in hydrated blended cement pastes by X-ray powder diffraction

Karen Scrivener, Ruben Anton Snellings, Xuerun Li

X-ray powder diffraction (XRPD)-based quantitative phase analysis is a common technique for studying the hydration of cementitious systems. Hydrated cements often comprise several amorphous or nanocrystalline phases. This paper presents a protocol for the ...

INT UNION CRYSTALLOGRAPHY2019

Basic creep of cement paste at early age - the role of cement hydration

Karen Scrivener, Pietro Lura

In this work, the uniaxial creep in compression during the first days of hydration is studied experimentally on cement pastes with w/c of 0.50. to order to assess the effect of the evolving microstructure on creep, the so-called equivalent systems are empl ...

Pergamon-Elsevier Science Ltd2019

Kinetics of mixing-water repartition in UHPFRC paste and its effect on hydration and microstructural development

Eugen Brühwiler, Emmanuel Denarié, Karen Scrivener, Mohammadhadi Kazemi Kamyab, Arnaud Charles Albert Muller

The hydration of an ultra-high performance fibre reinforced concrete (UHPFRC) paste with a water to cement ratio of 0.18 was followed by proton nuclear magnetic resonance (1H NMR) alongside more classical techniques for hydration kinetics, and microstructu ...

Pergamon-Elsevier Science Ltd2019

Characterization of Fly Ashes by a Novel Method in the Scanning Electron Microscope

Cyrille Dunant, Mohsen Ben Haha, Karen Scrivener, Pawel Tadeusz Durdzinski

In this paper, we show a new technique to characterize fly ashes using scanning electron microscopy (SEM). Chemical composition of millions of points is measured by SEM-energy dispersive X-ray spectroscopy and plotted in a ternary frequency plot. This new ...

ASTM INTERNATIONAL2019

Reaction Degree of Metakaolin in Limestone Calcined Clay Cement (LC3)

Karen Scrivener, François Henri Avet

The amount of reacted metakaolin is determined using two methods: mass balance and thermodynamic modeling. It is found that mass balance is the most promising method. Thermodynamic modeling gives slightly underestimated results at late ages. ...

SPRINGER2018

Low Carbon Cement LC3 in Cuba: Ways to Achieve a Sustainable Growth of Cement Production in Emerging Economies

Karen Scrivener

Through a collaborative work established between CIDEM and the Laboratory of Construction Materials at EPFL, a new cementitious system based on a synergetic combination of calcined clay and limestone as Portland's clinker replacement was developed. The nov ...

SPRINGER2018

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Karen Scrivener

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Basic creep of limestone-calcined clay cements: An experimental and numerical approach

Factors influencing the hydration kinetics of ye'elimite; effect of mayenite

Impact of temperature on expansive behavior of concrete with a highly reactive andesite due to the alkali-silica reaction

The influence of the filler effect on the sulfate requirement of blended cements

Performance of Limestone Calcined Clay Cement (LC3) with various kaolinite contents with respect to chloride transport (vol 51, 125, 2018)

Impacting factors and properties of limestone calcined clay cements (LC3)

Impact of sodium gluconate on white cement-slag systems with Na2SO4

Chemical shrinkage of ye'elimite with and without gypsum addition

Advances in understanding cement hydration mechanisms

Concrete Performance of Limestone Calcined Clay Cement (LC3) Compared with Conventional Cements

Quantification of amorphous siliceous fly ash in hydrated blended cement pastes by X-ray powder diffraction

Basic creep of cement paste at early age - the role of cement hydration

Kinetics of mixing-water repartition in UHPFRC paste and its effect on hydration and microstructural development

Characterization of Fly Ashes by a Novel Method in the Scanning Electron Microscope

Reaction Degree of Metakaolin in Limestone Calcined Clay Cement (LC3)

Low Carbon Cement LC3 in Cuba: Ways to Achieve a Sustainable Growth of Cement Production in Emerging Economies

On the mesoscale mechanism of synthetic calcium–silicate–hydrate precipitation: a population balance modeling approach

A novel method to predict internal relative humidity in cementitious materials by H-1 NMR

Changes in in microstructure characteristics of cement paste on carbonation

Determination of the amount of reacted metakaolin in calcined clay blends