Cómo detectar la CARBONATACIÓN en el CONCRETO - Ensayo con FENOLFTALEÍNA
Carbonation is a phenomenon caused by the chemical reaction between calcium hydroxide in concrete and carbon dioxide in the atmosphere, forming insoluble calcium carbonate. Ca(OH)2 + CO2 → CaCO3 + H2O. Phenolphthalein is a well-known pH indicator that reacts according to the acidic and alkaline solutions with which it comes into contact. The pink or magenta color it leaves in uncarbonated concrete allows us to estimate the extent of carbonation. Authors: Esteban Espinal Castañeda Diego León Hernandez Franco Supported by: Ph.D. César Echavarría
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