Iron speciation in blast furnace slag cements
Andrea Mancini,Andrea Mancini,Barbara Lothenbach,Barbara Lothenbach,Guoqing Geng,Guoqing Geng,Daniel Grolimund,Dario Ferreira Sanchez,Sirine C. Fakra,Rainer Dähn,Bernhard Wehrli,Erich Wieland +11 more
TLDR
In this paper, the speciation of iron on crushed materials through spatially resolved micro-spectroscopic studies was analyzed by element-specific synchrotron-based techniques.About:
This article is published in Cement and Concrete Research.The article was published on 2021-02-01 and is currently open access. It has received 20 citations till now. The article focuses on the topics: Hematite & Ground granulated blast-furnace slag.read more
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The Mechanism of Atmospheric Rusting and the Effect of Cu and P on the Rust Formation of Low Alloy Steels
TL;DR: In this article, the effect of catalytic effect of Cu and P on the oxidation of Fe(II) hydroxo-complexes in aqueous solutions has been investigated and the mechanism of atmospheric rusting deduced from the results obtained in the present investigation has been used to explain the difference in behaviour between ordinary mild steels and low alloy steels during atmospheric exposure.
Journal ArticleDOI
CemGEMS – an easy-to-use web application for thermodynamic modeling of cementitious materials
TL;DR: The present paper summarizes the concepts of CemGEMS and its template data, highlights unique features of value for cement chemists that are not available in other tools, presents several calculated examples related to hydration and durability of cementitious materials, and compares the results with thermodynamic modelling using the desktop GEM-Selektor code.
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Sustainable iron-rich cements: Raw material sources and binder types
Arne Peys,Visa Isteri,J. Yliniemi,Antonia S. Yorkshire,Patrick N. Lemougna,Claire Utton,John L. Provis,Ruben Snellings,Theodore Hanein +8 more
TL;DR: In this article , the authors discuss the most abundantly available Fe-rich natural resources and industrial by-products and residues, establishing symbiotic supply chains from various sectors, and discuss the impact of high iron content in clinker and on ferrite (thermo)chemistry.
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Solubility and speciation of iron in cementitious systems
Fabio Enrico Furcas,Fabio Enrico Furcas,Barbara Lothenbach,O. Burkan Isgor,Shishir Mundra,Zhidong Zhang,Ueli Angst +6 more
TL;DR: In this paper, a thermodynamic database devoted to aqueous iron species and solid oxides as well as chloride complexes is compiled, aiming to describe their speciation and solubility within the prevailing chemical environment of interest for cementitious systems.
Journal ArticleDOI
Solubility and speciation of iron in cementitious systems
TL;DR: In this article , a thermodynamic database devoted to aqueous iron species and solid oxides as well as chloride complexes is compiled, aiming to describe their speciation and solubility within the prevailing chemical environment of interest for cementitious systems.
References
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ATHENA, ARTEMIS, HEPHAESTUS: data analysis for X-ray absorption spectroscopy using IFEFFIT.
Bruce Ravel,Matthew Newville +1 more
TL;DR: A software package for the analysis of X-ray absorption spectroscopy (XAS) data is presented, based on the IFEFFIT library of numerical and XAS algorithms and is written in the Perl programming language using the Perl/Tk graphics toolkit.
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P.K. Mehta,Paulo J.M. Monteiro +1 more
TL;DR: Concrete: Microstructure, Properties, and Materials as mentioned in this paper provides complete details on the microstructure-property relationship approach to provide scientific explanation for the strength and durability of concrete.
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X-ray absorption : principles, applications, techniques of EXAFS, SEXAFS, and XANES
TL;DR: Theory of X-ray Absorption Spectroscopy (EXAFS) is described in this paper, where the authors present an experimental setup of EXAFS with Synchrotron Radiation.
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Supplementary cementitious materials
TL;DR: The use of silica-rich SCMs influences the amount and kind of hydrates formed and thus the volume, the porosity and finally the durability of these materials.
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Eco-efficient cements: Potential economically viable solutions for a low-CO2 cement-based materials industry
TL;DR: The main conclusions of an analysis of low-CO2, eco-efficient cement-based materials, carried out by a multi-stakeholder working group initiated by the United Nations Environment Program Sustainable Building and Climate Initiative (UNEP-SBCI) are presented, based on the white papers published in this special issue as discussed by the authors.