Topic
Ettringite
About: Ettringite is a research topic. Over the lifetime, 2702 publications have been published within this topic receiving 67056 citations. The topic is also known as: woodfordite.
Papers published on a yearly basis
Papers
More filters
TL;DR: The morphology of ettringite, formed by various reactions (C3A + gypsum, C3A+ anhydrite, CA + magnesium sulfate, in the presence and absence of calcium hydroxide) was studied by scanning electron microscopy.
100 citations
TL;DR: In this article, the authors describe the mechanisms by which ground granulated blastfurnace slag (ggbs) prevents sulphate attack of lime-stabilized kaolinite.
99 citations
TL;DR: In this article, the effects of further water curing on the compressive strength and microstructure of CO2-cured concrete were investigated, and the results showed that concrete with a residual w/c ratio of 0.25 showed the most rapid strength development rate upon further water-curing due to hydration of uncarbonated cement particles.
Abstract: This study aims to investigate the effects of further water curing on the compressive strength and microstructure of CO2-cured concrete. The results showed that concrete with a residual w/c ratio of 0.25 showed the most rapid strength development rate upon further water curing due to hydration of uncarbonated cement particles. Thermogravimetric, IR-spectrophotometric and scanning electron microscope examinations indicated that further hydration of the cement particles could form C-S-H gel and ettringite crystals. The results showed that the calcite formed during the initial CO2 curing was consumed during the further hydration of C3A, and produced calcium monocarbonaluminate hydrate. Also, Ca(OH)2 was not detected due to its reaction with the formed silica gel. Mercury intrusion porosimetry test results indicated that the porosity and pore size of the CO2 cured mortar decreased further after water curing.
99 citations
TL;DR: In this paper, the properties of concrete subjected to drying-wetting cycles in different types of sulfate solutions were investigated, and the results showed that the deterioration degree of concrete in magnesium sulfate solution is more severe than that in the other sulfate compounds.
99 citations
TL;DR: In this paper, two modifications of ye'elimite (namely orthorhombic and cubic) were synthesized and the reactions without additional sulfate and with gypsum were tracked by means of heat flow calorimetry.
99 citations