Ettringite is a hydrous calcium aluminium sulfate mineral with formula: Ca6Al2(SO4)3(OH)12·26H2O. It is a colorless to yellow mineral crystallizing in...

aluminoferrite monosulfate, and ettringite, a calcium aluminoferrite trisulfate (AFt). C4AF hydrates as hydrogarnet and ferrous ettringite. Sulfate attack typically...

sulfate, both present in Portland cement. C3A + 3 CaSO4 + 32 H2O → ettringite Ettringite, the most prominent representative of AFt phases or (Al2O3 − Fe2O3...

formation of ettringite. delayed ettringite formation, where concrete is cured at temperatures above the decomposition temperature of ettringite (about 65 °C)...

of expansive reactions called sulfate attack inside HCP: The delayed ettringite formation (DEF) also known as internal sulfate attack (ISA); The external...

Bronzite Hypersthene Eosphorite Epidote Piemontite Erythrite Esperite Ettringite Euclase Eudialyte Euxenite Fayalite Feldspar subgroup: Andesine Albite...

larnite, spurrite, halite, brownmillerite, hydrocalumite, mayenite and ettringite. It was first described in 1933 for an occurrence at Scawt Hill, Larne...

by sulfate attack: the formation of expansive mineral phases, such as ettringite (small needle crystals exerting a huge crystallization pressure inside...

Ericssonite Erionite (series of zeolites) Erythrite Eskolaite Esperite Ettringite Euchlorine Euchroite Euclase Eucryptite Eudialyte Eudialyte group Euxenite-(Y)...

appellation covering different concrete degradation mechanisms: Delayed ettringite formation (DEF), also known as internal sulfate attack (ISA) when the...

of the column rebar to the crossbeams and the formation of ettringite (delayed ettringite formation) were responsible for the cracks and were finally...

SEM image of fractured hardened cement paste, showing plates of calcium hydroxide and needles of ettringite (micron scale)...

prepared, concrete contains crystals of ettringite that can exchange aluminium for chromium, converting the ettringite to bentorite. This allows concretes...

cement in concrete causing the formation of expansive products, e.g., ettringite or thaumasite, which can lead to early failure of the structure. The most...

clinker or lime as an activator. They produce strength by formation of ettringite, with strength growth similar to a slow Portland cement. They exhibit...

"Investigation of the mechanical behaviour of concrete with severe delayed ettringite formation expansion focusing on internal damage propagation under various...

pyrrhotite breaks down into sulfuric acid and secondary minerals like ettringite, thaumasite and gypsum. These secondary products occupy a larger volume...

and calcium aluminate hydrates react with sulfates to form gypsum and ettringite (an expansive phase) respectively, in the case of the thaumasite form...

"glue" in cement paste), calcium sulfo-aluminate phases (AFm and AFt, ettringite) and hydrogarnet. C-S-H phases are less soluble (~ 10−5 M) than portlandite...

for Al, and/or CO2− 3 for SO2− 4 Calcium trisulfoaluminate hydrate, or ettringite AFm C4ASH12, often with substitution of Fe for Al, and/or various other...

Clinoungemachite, 10 Ungemachite, 10 Humberstonite; 15 Bentorite, 15 Charlesite, 15 Ettringite, 15 Jouravskite, 15 Sturmanite, 15 Thaumasite, 15 Carraraite, 15 Buryatite;...

Eztlite Ez Écrinsite Écr Elasmochloite Ela Enargite Eng Erionite-K Eri-K Ettringite Ett Eddavidite Edv Elbaite Elb Engelhauptite Egh Erionite-Na Eri-Na Eucairite...

to produce high-quality mineral specimens of rhodochrosite, manganite, ettringite, inesite, jouravskite and other minerals. The N'Chwaning mine is located...

to the delayed formation of ettringite, which is formed by the transformation of metastable monosulfate. Delayed ettringite formation (DEF) induces expansion...

of calcium and sulfate ions, it forms the insoluble, fibrous mineral ettringite, which provides the strength in sulfoaluminate concretes, monosulfoaluminate...

Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa Ettringite crystal on a matrix of hausmannite and hematite, coated by oyelite Warr...

crystallisation of ettringite (AFt sulfate). AFt phases Concrete degradation#Chloride attack Layered double hydroxides (LDH) Friedel's salt Ettringite (AFt) Pitting...

groups such as sulfate, carbonate or chloride, AFm phases and AFt or ettringite phases can form. Pozzolanic reaction is a long term reaction, which involves...

2.5. Sturmanite has a bright yellow to amber colour and falls in the ettringite group. It was named after Bozidar Darko Sturman (born 1937), Croatian-Canadian...

Israel it occurs in thermally altered limestones. It occurs with calcite, ettringite, wollastonite, larnite, brownmillerite, gehlenite, diopside, pyrrhotite...