DOAJ Open Access 2023

Investigation of alkali-silica reaction on mortars with alternative binder systems: Alkali activated Slags and Celitement

Julia T. Sonntag Ravi A. Patel David Alós Shepherd Frank Dehn

Abstrak

This study investigates the resistance against alkali-silica reaction (ASR) of two alternative binder systems, alkali-activated slag (AAS) and Celitement (Celite). Experimental studies on expansion and mechanical strength are carried out. Coupled kinetic and equilibrium thermodynamic modeling is used to clarify the role of binder chemistry on ASR. It was observed that under accelerated conditions OPC based mortars were more susceptible to ASR compared to AAS and Celite-based mortars. Based on experimental and modeling results, a correlation is shown between the dissolution of silica and the degree of expansion, but no correlation was found between the predicted amount of ASR products and the measured degree of expansion. Finally, the expansion degree could only be correlated with the reduction in compressive and flexural tensile strength for ASR-exposed samples.

Topik & Kata Kunci

Cement industries

Penulis (4)

Julia T. Sonntag

Ravi A. Patel

David Alós Shepherd

Frank Dehn

Format Sitasi

APA MLA BibTeX

Sonntag, J.T., Patel, R.A., Shepherd, D.A., Dehn, F. (2023). Investigation of alkali-silica reaction on mortars with alternative binder systems: Alkali activated Slags and Celitement. https://doi.org/10.1016/j.cement.2023.100078

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1016/j.cement.2023.100078

Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.1016/j.cement.2023.100078
Akses: Open Access ✓