Definition of Portlandite. Meaning of Portlandite. Synonyms of Portlandite

- Portlandite is a hydroxide-bearing mineral typically included in the oxide mineral class. It is the naturally occurring form of calcium hydroxide (Ca(OH)2)...
- reaction: Ca(OH)2 → Ca2+ + 2 OH− At ambient temperature, calcium hydroxide (portlandite) dissolves in water to produce an alkaline solution with a pH of about...
- ultimate reaction with portlandite, because they are continuously regenerated from the cation exchange reaction with portlandite. As a consequence, they...
- also, 2 OH− → O2− + H2O For portlandite this gives thus the following m**** balance: Ca(OH)2 → CaO + H2O Thus portlandite can be written as CaO · H2O or...
- the Na2Oeq content of cement) also contributes to the carbonation of portlandite by atmospheric CO2 in concrete although the rate of propagation of the...
- chemical environment provided by the alkali reserve (KOH, NaOH) and the portlandite (calcium hydroxide) contained in the hardened cement paste causes a p****ivating...
- pozzolanic reaction occurs between calcium hydroxide, also known as portlandite (Ca(OH)2), and silicic acid (written as H4SiO4, or Si(OH)4, in the geochemical...
- reaction stands a simple acid-base reaction between calcium hydroxide (as Portlandite) and silicic acid. Calcium silicate hydrate (CSH) Cement Cement chemist...
- of Portland cement and takes part in the pozzolanic reaction with the portlandite formed in the hydration of the main cement minerals (e.g. alite). Metakaolin...
- and portlandite (Ca(OH)2) according to the reaction: 2 Ca 2 SiO 4 ⏟ Belite + 4 H 2 O ⏟ Water ⟶ 3 CaO ⋅ 2 SiO 2 ⋅ 3 H 2 O + Ca ( OH ) 2 ⏟ Portlandite {\displaystyle...