User:Shinkolobwe/Sandbox 3

Test to create a supplementary sandbox 3

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Translation done

 * Water–cement ratio → Rapport eau-ciment
 * Sulfur concrete → Béton de soufre

AFm phases
AFm phases are crystalline hydrates with generic chemical formula 3CaO*Al2O3*CaX_{y}*nH2O where n may be comprised between 13 and 19 water molecules.

or:

AFm phases are crystalline hydrates with generic, simplified, formula 3CaO*(Al,Fe)2O3*CaX_{y}*nH2O, where: – divalent (SO4(2–), CO3(2–)…) with y = 1, or; – monovalent (OH-, Cl-…) with y = 2.
 * CaO, Al2O3, Fe2O3 represent calcium oxide, aluminium oxide, and ferric oxide, respectively;
 * CaX represents a calcium salt, where X replaces an oxide ion;
 * X is the substituted anion in CaX:
 * n represents the number of water molecules in the hydrate and may be comprised between 13 and 19.


 * Friedel's salt:
 * 2 Ca2Al(OH)6(Cl, OH) * 2 H2O

or,
 * 3CaO*Al2O3*CaCl2 * 11 H2O
 * 3CaO*Al2O3*Ca(O,Cl2) * 11 H2O


 * Carboaluminates

AFm in a table
In the most studied class of LDHs, the positive layer (c) consists of divalent M(2+) and trivalent N(3+) cations, and can be represented by the generic formula


 * [2]x+ [(Xn−)x/n · y]x-,

where Xn− is the intercalating anion (or anions).

LDH, such as hydrotalcite: Mg6Al2CO3(OH)16 * 4H2O


 * References

Mini sandbox
Mg6Cr2(OH)16CO3·4H2O

Mg6Cr2(OH)16CO3*4H2O

Java scripts
Java Scripts