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Factors affecting the reactivity of slag at early and late ages

Related publications (55)

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A reassessment of mercury intrusion porosimetry by comparison with H-1 NMR relaxometry

Karen Scrivener, Arnaud Charles Albert Muller

This paper shows how MIP measurements can give an accurate picture of the capillary porosity of cement pastes. Regions of the intrusion curves can be identified corresponding to capillary or gel pores. The amount of capillary pores is in excellent agreemen ...

Elsevier2017

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

Atomistic Simulations of Silicate Species Interaction with Portlandite Surfaces

Paul Bowen, Sandra Caroline Galmarini, Aslam Kunhi Mohamed

Portlandite (Ca(OH)(2), CH) is the second most abundant hydrate formed in the reaction of Portland cement with water, making it an important component in the built environment. Formation of CH is closely linked to the growth of the main hydrate phase, calc ...

American Chemical Society2016

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

Supplementary cementitious materials (SCM) lower the environmental impact of cement and concrete but react more slowly than Portland cement, which therefore limits the levels of substitution possible as reasonable early strengths are necessary. One of the ...

EPFL2015

Fine-particle water and pH in the southeastern United States

Athanasios Nenes, Hairun Guo

Particle water and pH are predicted using meteorological observations (relative humidity (RH), temperature (T)), gas/particle composition, and thermodynamic modeling (ISORROPIA-II). A comprehensive uncertainty analysis is included, and the model is validat ...

Copernicus GmbH2015

Hydration states of AFm cement phases

Karen Scrivener, Thomas Matschei, Mahsa Saeidpour

The AFm phase, one of the main products formed during the hydration of Portland and calcium aluminate cement based systems, belongs to the layered double hydrate (LDH) family having positively charged layers and water plus charge-balancing anions in the in ...

Pergamon-Elsevier Science Ltd2015

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The alkali-silica reaction causes long-term degradation in the microstructure of affected concrete as well as macroscopic expansion. In this paper, a micro-mechanical model based upon an explicit representation of the microstructure has been used to simula ...

Pergamon-Elsevier Science Ltd2015

Methods to determine hydration states of minerals and cement hydrates

Karen Scrivener, Thomas Matschei, Mahsa Saeidpour

This paper describes a novel approach to the quantitative investigation of the impact of varying relative humidity (RH) and temperature on the structure and thermodynamic properties of salts and crystalline cement hydrates in different hydration states (i. ...

Pergamon-Elsevier Science Ltd2014

The Effect of Mg on Slag Reactivity in Blended Cements

Karen Scrivener, Ruben Anton Snellings

Blast-furnace slags are widely used as supplementary cementitious materials in blended cements because of their relatively high reactivity. This study describes the effect of substituting Ca by Mg on the reactivity of synthetic glass with similar compositi ...

Springer2014