Influence of Accelerating Admixtures on the Reactivity of Synthetic Aluminosilicate Glasses.

ABSTRACT: This research aims at gaining a further understanding of the impact of accelerating admixtures on the reactivity of supplementary cementitious materials (SCMs), which are widely used as a clinker replacement in blended cements. This was done on synthetic glasses with controlled composition and structure that mimic two types of real SCMs (slag and calcium-rich fly ash). The effects of DEIPA, TIPA, NaSCN and Na2S2O3 on the glass dissolution, hydration kinetics and reaction products were investigated. The obtained results concluded that the pH of the NaOH solution and the composition of the synthetic glass play a key role on the effect of the admixtures. In 0.1 M NaOH (pH = 13.0), all the studied admixtures inhibited the dissolution of slag-like glasses while they enhanced the dissolution of

SUBMITTER: Gonzalez-Panicello L 

PROVIDER: S-EPMC8836432 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature