Colin Giebson

TL;DR: In this paper, the authors investigated the effect of external alkalis and their influence on ASR in concrete and found that portlandite is increased in the presence of acetate-and formate-based deicers due to the formation of Ca-acetate and Ca-formate complexes.

TL;DR: The role of mechanical predamage on ASR is largely unclear as mentioned in this paper, but it was evident that an ASR initiated earlier in the predamaged concrete prisms due to the more rapid ingress of NaCl solution through the micro-cracks.

TL;DR: In this article, the authors investigated the process of ASR induced expansion and damage in pavement concrete specimens using laboratory experiments and computational modeling, and showed that the expansion in the specimen subjected to external alkali supply is governed by micro-cracking in both the aggregates and the cement paste.

TL;DR: The authors decrit les mecanismes de la reactivite alcali-silice ainsi que les avantages et inconvenients des methodes d'essai.

TL;DR: In this article, an Electron Backscatter Diffraction (EBSD) technique was introduced to distinguish the ASR risk of slow-late reacting aggregates by measuring microstructural properties of quartz.