A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Interactions between alkali-activated ground granulated blastfurnace slag and organic matter in soil stabilization/solidification
Abstract This paper presents novel findings regarding the use of alkali-activated slag for the development of road applications and, more particularly, how the interactions that occur between the binder and the organic matter originally present in the soil can strongly affect its reactivity in the process of stabilization and solidification. The study uses mechanical performances and macroscopic characterization, such as isothermal calorimetry and thermogravimetric analysis of the pure binders as well as of the soil-binder mixes in order to characterize the hydration mechanisms. By analyzing the chemical composition of organic matter extracted with three different alkaline activators, it is shown that both humic and fulvic acids are strong complexing agents, not only of calcium and aluminum ions, as noted in the existing scientific literature, but also of highly soluble silicon. In this study, only sodium hydroxide activated slag was found to be a suitable alkali-activated binder for subbase layer development.
Interactions between alkali-activated ground granulated blastfurnace slag and organic matter in soil stabilization/solidification
Abstract This paper presents novel findings regarding the use of alkali-activated slag for the development of road applications and, more particularly, how the interactions that occur between the binder and the organic matter originally present in the soil can strongly affect its reactivity in the process of stabilization and solidification. The study uses mechanical performances and macroscopic characterization, such as isothermal calorimetry and thermogravimetric analysis of the pure binders as well as of the soil-binder mixes in order to characterize the hydration mechanisms. By analyzing the chemical composition of organic matter extracted with three different alkaline activators, it is shown that both humic and fulvic acids are strong complexing agents, not only of calcium and aluminum ions, as noted in the existing scientific literature, but also of highly soluble silicon. In this study, only sodium hydroxide activated slag was found to be a suitable alkali-activated binder for subbase layer development.
Interactions between alkali-activated ground granulated blastfurnace slag and organic matter in soil stabilization/solidification
Wattez, Thomas (author) / Patapy, Cédric (author) / Frouin, Laurent (author) / Waligora, Julien (author) / Cyr, Martin (author)
2020-07-20
Article (Journal)
Electronic Resource
English
Carbide slag–activated ground granulated blastfurnace slag for soft clay stabilization
| Online Contents | 2015
Carbide slag-activated ground granulated blastfurnace slag for soft clay stabilization
| British Library Online Contents | 2015
Mechanism of reactive magnesia-ground granulated blastfurnace slag soil stabilization
| Online Contents | 2016
Mechanism of reactive magnesia — ground granulated blastfurnace slag (GGBS) soil stabilization
| British Library Online Contents | 2016