Publications de François Henri Avet

Report of RILEM TC 267-TRM phase 3: validation of the R-3 reactivity test across a wide range of materials

Mohsen Ben Haha, Karen Scrivener, François Henri Avet, Pawel Tadeusz Durdzinski, Ruben Anton Snellings, Xuerun Li, Diana Londoño Zuluaga, Alastair Thomas Matthew Marsh

RILEM TC 267 TRM- "Tests for Reactivity of Supplementary Cementitious Materials" recommends the Rapid Reliable Relevant (R-3) test as a method for determining the chemical reactivity of supplementary cementitious materials (SCMs) in Portland cement blends. ...

SPRINGER2022

Hydration and mixture design of calcined clay blended cements: review by the RILEM TC 282-CCL

Mohsen Ben Haha, Karen Scrivener, François Henri Avet, Franco Alberto Zunino Sommariva, Anuj Parashar, Sreejith Krishnan, Yuvaraj Dhandapani

The RILEM technical committee 282-CCL: Calcined Clays as Supplementary Cementitious Materials, investigates all the aspects related to calcined clays, from clay exploration and characterization to calcination process, hydration reactions and concrete prope ...

SPRINGER2022

Report of RILEM TC 267-TRM phase 2: optimization and testing of the robustness of the R3 reactivity tests for supplementary cementitious materials

Mohsen Ben Haha, Karen Scrivener, Shashank Bishnoi, François Henri Avet, Pawel Tadeusz Durdzinski, Ruben Anton Snellings, Xuerun Li, Anuj Parashar, Diana Londoño Zuluaga, Alastair Thomas Matthew Marsh

The results of phase 1 of an interlaboratory test, coordinated by the RILEM TC 267-TRM "Tests for Reactivity of Supplementary Cementitious Materials" showed that the R-3 (rapid, relevant, reliable) test method, by measurement of heat release or bound water ...

SPRINGER2022

Clay calcination technology: state-of-the-art review by the RILEM TC 282-CCL

Mohsen Ben Haha, Karen Scrivener, Shashank Bishnoi, François Henri Avet, Adrian Alujas Diaz, Franco Alberto Zunino Sommariva, Anuj Parashar, Alastair Thomas Matthew Marsh

The use of calcined clays as supplementary cementitious materials provides the opportunity to significantly reduce the cement industry's carbon burden; however, use at a global scale requires a deep understanding of the extraction and processing of the cla ...

SPRINGER2022

Strength-promoting mechanism of alkanolamines on limestone-calcined clay cement and the role of sulfate

Karen Scrivener, François Henri Avet, Wilasinee Hanpongpun, Xuerun Li, Hong Huang

This paper reports the strength-promoting mechanism of alkanolamines on limestone-calcined clay cement (LC3). The hydration kinetics, phase formation and microstructure of LC3 with triethanolamine (TEA) or triisopropanolamine (TIPA) were investigated. TEA ...

Pergamon-Elsevier Science Ltd2021

Understanding of the factors slowing down metakaolin reaction in limestone calcined clay cement (LC3) at late ages

Paul Bowen, Mohsen Ben Haha, Karen Scrivener, François Henri Avet, Yosra Briki

Factors which could explain the slowing down of the metakaolin reaction in LC3 blends are investigated. Portlandite availability and the presence of aluminium ions in the pore solution are shown not to be limiting factors. ...

Pergamon-Elsevier Science Ltd2021

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 ...

2020

Effect of temperature on the water content of C-A-S-H in plain Portland and blended cements

Karen Scrivener, François Henri Avet

This study aims to investigate the change with temperature of the water content of the C-(A)-S-H of plain cement (PC) and Limestone Calcined Clay Cement (LC3). The water content was determined by various methods: thermogravimetric analysis (TGA), H-1-nucle ...

Pergamon-Elsevier Science Ltd2020

Influence of pH on the chloride binding capacity of Limestone Calcined Clay Cements (LC3)

Karen Scrivener, François Henri Avet

The high solution to solid ratio normally used for the measurement of chloride binding isotherms, leads to a leaching of ions and a decrease of pH. To make binding test more representative of on-site conditions, we investigated the influence of the increas ...

Pergamon-Elsevier Science Ltd2020

Rapid, Robust, and Relevant (R3) Reactivity Test for Supplementary Cementitious Materials

Karen Scrivener, François Henri Avet, Ruben Anton Snellings, Xuerun Li

Although supplementary cementitious materials (SCMs) are now commonly accepted and widely used, consensus has not been reached for methods to test their chemical reactivity. A multitude of test methods exist but often fall short on one or more of the key f ...

AMER CONCRETE INST2019

Investigation of C-A-S-H composition, morphology and density in Limestone Calcined Clay Cement (LC3)

Karen Scrivener, Emmanuelle Boehm Courjault, François Henri Avet

In this study, the C-A-S-H composition, morphology and density are characterized for Limestone Calcined Clay Cement (LC3-50) blends containing clays with various kaolinite contents. Significant incorporation of aluminium is observed for LC3-50 blends compa ...

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

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

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

Determination of the amount of reacted metakaolin in calcined clay blends

Karen Scrivener, François Henri Avet, Xuerun Li

Pergamon-Elsevier Science Ltd2018

Investigation of the calcined kaolinite content on the hydration of Limestone Calcined Clay Cement (LC3)

Karen Scrivener, François Henri Avet

Pergamon-Elsevier Science Ltd2018

Performance of Limestone Calcined Clay Cement (LC3) with various kaolinite contents with respect to chloride transport

Karen Scrivener, François Henri Avet, Mohammadhadi Kazemi Kamyab, Hamed Maraghechi

The durability of mortar and paste mixtures with respect to chloride ion ingress was investigated for binary blends of Portland Cement Calcined Clay, and ternary systems of Limestone Calcined Clay Cement (LC3). Five clays from various sources with differen ...

SPRINGER2018

Chloride Transport Behavior of LC3 Binders

Karen Scrivener, François Henri Avet, Hamed Maraghechi

Corrosion of metal reinforcement is the most important durability concern of concrete infrastructures. In this research, chloride transport in mortars prepared using ternary blends of OPC-calcined clay-limestone (LC3) as the cementitious materials is asses ...

SPRINGER2018

Hydration Study of Limestone Calcined Clay Cement (LC3) Using Various Grades of Calcined Kaolinitic Clays

Karen Scrivener, François Henri Avet

In this study, the influence of the calcined kaolinite content of calcined clay on the hydration of Limestone Calcined Clay Cement (LC3-50) is investigated. It is shown that with the increase of the calcined kaolinite content of the calcined clay, the clin ...

SPRINGER2018