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Concept

Calcaire

Publications associées (31)

Influence of low curing temperatures on the tensile response of low clinker Strain Hardening UHPFRC under full restraint

Emmanuel Denarié, Mohamed Abdul Hafiz

The tensile response of strain hardening UHPFRC under full restraint, subjected to curing temperatures of 20 °C, 10 °C, 5 °C, was investigated for two types of mixes with silica fume; Mix I with pure type I cement and Mix II with 50% replacement of cement ...

Pergamon-Elsevier Science Ltd2020

Modelling of the tensile behavior of SH-UHPFRC at low and high stress levels, under very low loading rates

Emmanuel Denarié, Mohamed Abdul Hafiz

The tensile behavior under low loading rates governs to a large extend the mechanical response of Strain Hardening Ultra High Performance Fiber Reinforced Concretes (SH-UHPFRC) at early age and long term, in applications of rehabilitation. A viscoelastic-v ...

2020

Tensile response of UHPFRC under very low strain rates and low temperatures

Emmanuel Denarié, Mohamed Abdul Hafiz

This paper addresses the uniaxial tensile response of Strain Hardening Ultra High-Performance Fiber Reinforced Concretes (SH-UHPFRC) subjected to very low strain rates and low temperatures. The influence of four different strain rates; 1 × 10−5, 1 × 10−7, ...

Pergamon-Elsevier Science Ltd2020

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

A modern scleractinian coral with a two-component calcite–aragonite skeleton

Anders Meibom, Jaroslaw Hubert Stolarski

One of the most conserved traits in the evolution of biomineralizing organisms is the taxon-specific selection of skeletal minerals. All modern scleractinian corals are thought to produce skeletons exclusively of the calcium-carbonate polymorph aragonite. ...

2021

Basic creep and autogenous shrinkage of Limestone Calcined Clay Cement (LC3)

Julien Ston

The use of supplementary cementitious materials (SCM) to lower the clinker factor of cements is now commonplace, for it benefits performance, economics and ecology. This thesis focuses on ternary blends of limestone and calcined kaolinitic clays, two very ...

EPFL2019

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

Karen Scrivener, Julien Ston

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

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

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

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

Investigation of the use of Limestone Calcined Clay Cement (LC3) applied to Thailand

Wilasinee Hanpongpun

The replacement of clinker with supplementary cementitious materials (SCMs) is the most interesting solution to reduce the CO2 emissions from cement production. The abundant availability of clays, which have a sufficient amount of kaolinite content in Thai ...

EPFL2019

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

Quantification methods for chloride binding in Portland cement and limestone systems

Wei Sun, Karen Scrivener, Fabien Jacques Michel Georget, Hamed Maraghechi, William Wilson, Shiyu Sui

This paper presents a comparison of methods to quantify the chloride binding capacity for cementitious materials composed of Ordinary Portland Cement (OPC) and Limestone (LS, 0 to 55% replacement). Physical and chemical chloride bindings were investigated ...

Pergamon-Elsevier Science Ltd2019