This is because magnesium also takes part in the reactions, replacing calcium in the solid phases with the formation of brucite ( magnesium hydroxide ) and magnesium silicate hydrates.
12.
"' Jennite "'is a calcium silicate hydrate mineral of general chemical formula : Ca 9 Si 6 O 18 ( OH ) 6 ?H 2 O.
13.
The hyphens in C-S-H indicate a calcium silicate hydrate phase of variable composition, while'CSH'would indicate a calcium silicate phase, CaH 2 SiO 4.
14.
Yip and van Deventer ( 2003 ) found that the presence of calcium within these mixtures often resulted in a second phase of calcium silicate hydrate ( CSH ) within the final geopolymer.
15.
The product CaH 2 SiO 4 ? H 2 O is a calcium silicate hydrate, also abbreviated as C-S-H in cement chemist notation, the hyphenation denotes the variable stoichiometry.
16.
Its main component is the tri-calcium silicate hydrate gel ( 3 CaO ?2 SiO 3 ?3 H 2 0, in short C 3-S 2-H 3 ).
17.
That chemical process, called mineral hydration, forms two cementing compounds in the concrete : calcium silicate hydrate ( C-S-H ) and calcium hydroxide ( Ca ( OH ) 2 ).
18.
The Pozzolanic reaction which occurs in the setting of the mixture of slaked lime and pozzolanic materials has also features similar to the alkali silica reaction, mainly the formation of calcium silicate hydrate ( CSH ).
19.
Pozzolanic concretes, including EMCs, however, continue to consume the soft and porous Portlandite as the hydration process continues, turning it into additional hardened concrete as calcium silicate hydrate ( C-S-H ) rather than calcium carbonate.
20.
This forms an insoluble film on the surface of the concrete and by keeping the water in the concrete mixture from evaporating, facilitates a chemical reaction in which water molecules react with calcium hydroxide and other ingredients to form calcium-silicate hydrate.
