Indian Railways uses factory made pre-tensioned pre-stressed concrete sleepers for its
track. These sleepers start cracking after 6-9 years of their manufacturing in many areas of …

This paper presents a numerical study to investigate delayed ettringite formation (DEF) that
may pose a long-term durability risk by altering the microstructure with consequent swelling …

This paper presents the first case ever reported in Brazil where delayed ettringite formation
(DEF) has been confirmed as the sole cause of deterioration in field concrete. Still under …

Currently, there is an awareness that is critical to assess the durability characteristics of
concrete with as much attention as the mechanical properties. The durability of concrete …

In this study, rhyolite and metakaolin were evaluated in view of preventing delayed ettringite
formation (DEF) in the long term. In the experimental study performed, mortar mixtures were …

Atualmente, existe a consciência de que é fundamental avaliarem-se as características de
durabilidade do concreto com tanta atenção quanto às propriedades mecânicas. A …

In many countries, various cases of deterioration of concrete by internal expansion related to
alkali silica reaction (ASR) and delayed ettringite formation (DEF) have been reported. To …

Backfill sand mixed with various additives changes the engineering properties during long-
term variations in meteorological and hydrological conditions. Therefore, this paper aims to …

While expansive reaction due to the Alkali-Silica Reaction (ASR) and Delayed Ettringite
Formation (DEF) have been found to be correlated and the appearances of their cracking …

Precast concrete sleepers production requires the application of low-pressure steam curing
to accelerate the early age strength development. In this curing process, heat is gradually …