Examples of 'ettringite' in a sentence
Meaning of "ettringite"
Ettringite is a mineral compound typically found in hydrated cement paste
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- A trigonal hydrous calcium aluminium sulfate mineral.
How to use "ettringite" in a sentence
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ettringite
Charlesite is a sulfate mineral of the ettringite group.
A global description of ettringite precipitation process has been suggested.
Ettringite is believed to be the principal strength forming mineral.
The amount of ettringite increases.
Ettringite is considered to be a AFt phase.
It is therefore important that the formation of ettringite ceases after several days.
Ettringite is stabilized and her conversion into monosulfoaluminate is delayed by wood.
Lack of calcium ions during the ettringite precipitation step inhibits the removal of sulphate.
Ettringite is produced by the hydration of cementitious compositions containing calcium aluminate and calcium sulphate.
The cohabitation of these phases entail the existence of chemical complexes and substitued ettringite.
No ettringite formation.
The combined use of aluminous cement and calcium sulphates may form an ettringite binder.
Ettringite is produced by the hydration of cementitious materials containing calcium aluminate and calcium sulphate.
The fine particles are readily dissolved and supply the gypsum needed to form ettringite.
Ettringite is a mineral from the mineral class of the hydrous sulphates with foreign anions.
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This is because of the formation of Ettringite.
The specific surface area of ettringite increases when the grafting density of PCE decreases.
Especially PCE lead to increase the surface by changing the morphology of ettringite.
At higher sulphate levels, ettringite is formed in preference.
After months or years of desorption, ettringite.
At higher levels of sulphate, ettringite is formed preferentially.
The term " ettringite forming cement " refers to a cement which is capable of forming ettringite.
Hydraulic binder of the sulphoaluminate type, mainly forming ettringite on hydration.
In these cases, ettringite will be formed, resulting in good acceleration effects.
Figure 4 shows sulphate precipitation kinetics of ettringite when using several aluminium chemicals ;.
The gypsum and ettringite solid productions are estimated based on equations 1 and 2.
Nevertheless, the model encounters calibration difficulties for beams affected by delayed ettringite formation.
Finally, sulfate activation produces ettringite with silicoaluminate materials other than granulated slag.
Ettringite binder for dense mortar, comprising calcium sulphates and a mineral compound of calcium aluminates.
Typically the second calcium compound in the ettringite precipitation step is lime milk ( calcium hydroxide ).
These options are reliable, proven and generally more cost-effective than direct barium or ettringite options.
An exemplary flow diagram of a control of ettringite precipitation process is illustrated in Figure 7.
Ettringite is formed, for example, in the initial stage of the hydration of Portland cements.
The residual Al and Na after the ettringite precipitation are shown in the figure 6 and 7.
Ettringite has a tendency to dissolve at a pH below 10.
It causes the precipitation of ettringite by removing sulfates ( SAVMIN and CESR process ).
The hydraulic binders ( a . ii ) of the sulphoaluminate type, mainly forming ettringite on hydration.
Blowing agent, ettringite type, coal type etc.
First a sludge stream is fed to the reactor tank 10 for an ettringite precipitation ( step 72 ).
The calcium compound 9 in the ettringite precipitation process may be lime milk ( calcium hydroxide ).
It occurs in association with afwillite, calcite, larnite, spurrite, halite, brownmillerite, hydrocalumite, mayenite and ettringite.
Typically the calcium concentration in the ettringite sludge should be at least 200 mg / l.
Especially preferred are calcium silicate hydrate ( C-S-H ) and / or ettringite.
Results from the Ettringite precipitation experiments are shown in the figures 3-5.
Calcium sulphate / aluminium A oxide molar ratio in the ettringite binder ranges from 0.5 to 2.
Besides, ettringite precipitated at 20°C, but was destabilised at higher temperature.
Target for the residual sulphate after Ettringite precipitation is 250 mg SO4/l.
Expansive admixtures, ettringite type, coal-derived type, etc.
