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Article: Granite, limestone and marble -- Part I: structural and chemical effects on water absorption.
- Article from:
- Stone World
- Article date:
- November 1, 2002
- Author:
CopyrightCOPYRIGHT 2002 BNP Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract
Three siliceous and three calcareous stones were characterized by mercury porosimetry, BET surface area analysis, and profilometry to measure porosity, pore size distribution, surface area, and surface microtopography (roughness). Using ASTM C 97 ratings as a guideline, absorption was rated as low, medium and high within stone types. Specific stones were then selected as low, medium and high water-absorbers and these were tested. It was found that the water absorption correlates with the mean roughness value and the surface area is proportional to the measured porosity.
Introduction
This is the first in a series of publications that ...