Publication

Use of X-ray diffraction to quantify amorphous supplementary cementitious materials in anhydrous and hydrated blended cements

Publications associées (35)

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

Reactivity tests for supplementary cementitious materials: RILEM TC 267-TRM phase 1

Karen Scrivener, Mathieu Antoni, Ruben Anton Snellings, Mohsen Ben Haha, Shashank Bishnoi, Xuerun Li, Anuj Parashar, Yuvaraj Dhandapani

A primary aim of RILEM TC 267-TRM: Tests for Reactivity of Supplementary Cementitious Materials (SCMs) is to compare and evaluate the performance of conventional and novel SCM reactivity test methods across a wide range of SCMs. To this purpose, a round ro ...

SPRINGER2018

Synthetic Calcium Silicate Hydrates

Abhishek Kumar

Since the introduction of cementitious materials over 200 years ago, its use has multiplied many fold to be currently at 3 billion tonnes per year, accounting for about 8% of worldwide carbon emission which is forecast to double within the next 30 years. U ...

EPFL2017

Effect of replacement of silica fume with calcined clay on the hydration and microstructural development of eco-UHPFRC

Karen Scrivener, Wei Sun, Wei Huang

In this paper, the replacement of high cost silica fume with calcined clay was investigated in UHPFRC mixes. The impact of two grades of calcined clay on the hydration and microstructural development of UHPFRC matrices was investigated, where 54% of the ce ...

Elsevier Sci Ltd2017

The pore solution of blended cements: a review

Barbara Lothenbach, Ruben Anton Snellings

This paper is the work of working group 3 of the RILEM Technical Committee on Hydration and Microstructure of Concrete with SCM (TC 238-SCM). The pore solution is an essential but often overlooked part of hydrated cements. The composition of the cement por ...

Springer2016

Development of a new rapid, relevant and reliable (R-3) test method to evaluate the pozzolanic reactivity of calcined kaolinitic clays

Karen Scrivener, Ruben Anton Snellings, Mohsen Ben Haha, François Henri Avet, Adrian Alujas Diaz

The present paper introduces a new rapid, relevant and reliable (R-3) test to predict the pozzolanic activity of calcined clays with kaolinite contents ranging from 0 to 95%. The test is based on the correlation between the chemical reactivity of calcined ...

Pergamon-Elsevier Science Ltd2016

Preparation and accelerated carbonation of low temperature sintered clinker with low Ca/Si ratio

Xuerun Li

A novel clinker with low Ca/Si ratio and low sintering temperature was synthesized, and the property of the clinker was tested. A clinker sintered from industrial raw materials mainly contains rankinite (Ca3Si2O7), pseudowollastonite (Ca-3(Si3O9)) and ferr ...

Elsevier Sci Ltd2016

Impact of water activity on the mineralogy of hydrated cement

Luis Guillermo Baquerizo Ibarra

Cement hydrates and their chemically bound water content are sensitive to changes in relative humidity (RH) and temperature. This may cause specific solid volume changes affecting dimensional properties of hydrated cement paste such as shrinkage, swelling ...

EPFL2015

Impact of the supplementary cementitious materials on the kinetics and microstructural development of cement hydration

Elise Marie Jeanne Berodier

Supplementary cementitious materials (SCMs) are currently used to replace part of the clinker to reduce the environmental impact of cement and to favor the use of local materials. Two representative SCM have been used in this work: slag and fly ash. Each o ...

EPFL2015

The existence of amorphous phase in Portland cements: Physical factors affecting Rietveld quantitative phase analysis

Karen Scrivener, Ruben Anton Snellings, Amélie Bazzoni

Rietveld quantitative phase analysis has become a widespread tool for the characterization of Portland cement, both for research and production control purposes. One of the major remaining points of debate is whether Portland cements contain amorphous cont ...

Pergamon-Elsevier Science Ltd2014

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