Publications associées à Sulfate de sodium

Effect of different ions on dissolution rates of silica and feldspars at high pH

Karen Scrivener, Barbara Lothenbach, Mahsa Bagheri, Mahdieh Shakoorioskooie

The dissolution kinetics of silica-containing minerals in aggregates influences strongly the process of ASR in concrete. In this paper, the effect of different ions on the dissolution rates of SiO2 (amorphous and quartz) and feldspars at high pH values was ...

PERGAMON-ELSEVIER SCIENCE LTD2022

Insights on the role of alumina content and the filler effect on the sulfate requirement of PC and blended cements

Karen Scrivener, Franco Alberto Zunino Sommariva

Understanding the mechanism controlling the sulfate requirement of blended cements is crucial for a successful deployment of these technologies towards a more sustainable industry. Particularly, clarification regarding the role of alumina content on the su ...

PERGAMON-ELSEVIER SCIENCE LTD2022

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

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

Factors influencing the sulfate balance in pure phase C3S/C(3)A systems

Karen Scrivener, Franco Alberto Zunino Sommariva

Understanding the sulfate balance mechanism of cement is needed for an effective use of sustainable blended cements. Pure phase systems allow to study the interaction between sulfate and each of the phases involved in early age hydration separately. This p ...

2020

The reaction between metakaolin and limestone and its effect in porosity refinement and mechanical properties

Karen Scrivener, Franco Alberto Zunino Sommariva

n limestone calcined clay cements (LC3), more hemicarboaluminate and monocarboaluminate is observed, as compared to other blended cements, from the reaction of metakaolin with limestone. In this study, it is shown that the formation of these carboaluminate ...

2020

Transforming Phosphogypsum Waste into Products with Market Value

Vast amounts of phosphogypsum (PG) which is a by-product of phosphorous acid production from apatite rock using sulphuric acid, are deposited in large piles at many locations worldwide. PG materials are added at rates of the order of megatonnes (Mt) per an ...

Paul Scherrer Institute, World Resources Forum2019

Biogeochemical Cycling by a Low-Diversity Microbial Community in Deep Groundwater

Rizlan Bernier-Latmani, Manon Frutschi, Emma Bell, Louise Julia Balmer, Guillaume Sommer, Chen Qian

Olkiluoto, an island on the south-west coast of Finland, will host a deep geological repository for the storage of spent nuclear fuel. Microbially induced corrosion from the generation of sulphide is therefore a concern as it could potentially compromise t ...

2018

Room temperature C(sp(2))-H oxidative chlorination via photoredox catalysis

Xile Hu, Lei Zhang

Photoredox catalysis has been developed to achieve oxidative C-H chlorination of aromatic compounds using NaCl as the chlorine source and Na2S2O8 as the oxidant. The reactions occur at room temperature and exhibit exclusive selectivity for C(sp(2))-H bonds ...

Royal Soc Chemistry2017

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Sulfate de sodium

Contradict mechanism of long-term magnesium and sodium sulfate attacks of nano silica-modified cement mortars - Experimental and thermodynamic modeling

Crystal, defect, and morphology engineering of porous two-dimensional materials for ionic separation

Effect of different ions on dissolution rates of silica and feldspars at high pH

Insights on the role of alumina content and the filler effect on the sulfate requirement of PC and blended cements

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

Factors influencing the sulfate balance in pure phase C3S/C(3)A systems

The reaction between metakaolin and limestone and its effect in porosity refinement and mechanical properties

Transforming Phosphogypsum Waste into Products with Market Value

Biogeochemical Cycling by a Low-Diversity Microbial Community in Deep Groundwater

Room temperature C(sp(2))-H oxidative chlorination via photoredox catalysis

Graph Chatbot

Chattez avec Graph Search

Contradict mechanism of long-term magnesium and sodium sulfate attacks of nano silica-modified cement mortars - Experimental and thermodynamic modeling

Room temperature C(sp(2))-H oxidative chlorination via photoredox catalysis

Crystal, defect, and morphology engineering of porous two-dimensional materials for ionic separation

Transforming Phosphogypsum Waste into Products with Market Value

Factors influencing the sulfate balance in pure phase C3S/C(3)A systems

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

Insights on the role of alumina content and the filler effect on the sulfate requirement of PC and blended cements

Effect of different ions on dissolution rates of silica and feldspars at high pH

Biogeochemical Cycling by a Low-Diversity Microbial Community in Deep Groundwater

The reaction between metakaolin and limestone and its effect in porosity refinement and mechanical properties