Silicate species of water glass and insights for alkali-activated green cement
Journal article, 2015

Despite that sodium silicate solutions of high pH are commonly used in industrial applications, most investigations are focused on low to medium values of pH. Therefore we have investigated such solutions in a broad modulus range and up to high pH values (∼14) by use of infrared (IR) spectroscopy and silicon nuclear magnetic resonance (29Si-NMR). The results show that the modulus dependent pH value leads to more or less charged species, which affects the configurations of the silicate units. This in turn, influences the alkali-activation process of low CO 2 footprint cements, i.e. materials based on industrial waste or by-products.

Author

Helen Jansson

Chalmers, Civil and Environmental Engineering, Building Technology

Diana Bernin

University of Gothenburg

Kerstin Ramser

Luleå University of Technology

AIP Advances

2158-3226 (ISSN)

Vol. 5 6 article no. 067167 - 067167

Subject Categories

Subatomic Physics

DOI

10.1063/1.4923371

More information

Latest update

5/14/2018