A review of sample preparation and its influence on pH determination in concrete samples

S. Manso; A. Aguado

doi:10.3989/mc.2017.08515

Autores/as

S. Manso Polytechnic University of Catalonia https://orcid.org/0000-0002-2712-5976
A. Aguado Polytechnic University of Catalonia https://orcid.org/0000-0001-5542-6365

DOI:

https://doi.org/10.3989/mc.2017.08515

Palabras clave:

pH, Hormigón, Mortero, Pasta de cemento, Solución porosa

Resumen

Determinar el pH de la fase acuosa de los poros de pastas de cemento, morteros y hormigones tiene gran importancia en el monitoreo de los procesos químicos que tienen lugar en los materiales cementiceos. Sin embargo, no existe una normativa que regule el método de preparación de la muestra para la determinación de su pH. Este artículo presenta un estado del conocimiento de diferentes metodologías para la determinación del pH de materiales cementiceos y la influencia del método de preparación según el objetivo. Además, se presenta una campaña experimental comparando tres técnicas diferentes. Dicha campaña contribuye a establecer un criterio simple que ayude al investigador en la selección del método más adecuado dependiendo del objeto de studio. Este artículo tiene por objetivo ser una herramienta sencilla para seleccionar la metodología más fácil y económica para determine

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