Stains in Pavement Applications of a Portuguese Limestone

Joaquim Simão, Vera Pires, A. C. Galhano, Cristina Carvalho

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The use of natural stone on pavements follows a number of requirements that are important for the success of its application.
Among these requirements, in addition to the application method, the knowledge of the different materials involved is critical to the performance of a natural stone work.
The recent application of an ornamental Portuguese limestone widely used in the market resulted in the appearance of reddish brown spots on the stone surface applied in a building floor.
This effect, aesthetically undesirable, brought troubles both to the supplier and the customer. As an attempt to detect the origin of the spots experiments were performed in the laboratory isolating each of the constituents of the system: base mortar, epoxy mortar and stone.
The evolution of the process was monitored and the alteration products that appeared the stone surface were characterized.
Original languageEnglish
Title of host publicationStains in Pavement Applications of a Portuguese Limestone
Place of PublicationAntalya (Turkey).
PublisherGlobal Stone Congress
Number of pages8
Publication statusPublished - 22 Oct 2014


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