Microscopic methods applied to study of historical mortars and plasters

GREGEROVÁ, Miroslava and Pavel POSPÍŠIL. Microscopic methods applied to study of historical mortars and plasters. In Proceedings of the 8th Euroseminar on Microscopy Applied to Buildings Materials. 1st ed. Atheny: Atheny, 2001, p. 353-358.

Basic information

• Original name: Microscopic methods applied to study of historical mortars and plasters
• Authors: GREGEROVÁ, Miroslava and Pavel POSPÍŠIL.
• Edition: 1. vyd. Atheny, Proceedings of the 8th Euroseminar on Microscopy Applied to Buildings Materials, p. 353-358, 2001.
• Publisher: Atheny

Other information

• Original language: English
• Type of outcome: Proceedings paper
• Field of Study: 10500 1.5. Earth and related environmental sciences
• Country of publisher: Greece
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14310/01:00004847
• Organization unit: Faculty of Science
• Keywords in English: mortars; plasters; degradation; durability; re-crystallization
• Tags: degradation, durability, mortars, plasters, re-crystallization

Abstract

The presented paper summarizes results of historical plasters and mortars research of the Church of Saint Wenceslas in Ostrava, the Church of the Translation of Virgin Mary in Brantice and from archaeological survey of the basement of the Church of Saint Catherine in Kelč. The relative dating of particular building stages of said churches is based on micropetrographic identification of the sandy fraction of mortars (in each stage, a different sand was used) and on the degree of re-crystallization (ageing) of the original micritic carbonate. The assessment of plasters and mortars relates to the localization (inner, outer plaster) and the height level of the sampling site above ground and position of the mortar in the wall (plaster, bedding mortar). The azimuthal orientation of the sampled wall has been also documented. Micropetrographic analysis of sandy fraction of mortars and plasters, together with the assessment of the degree of matrix re-crystallization, can in almost 95% cases confirm or exclude the assumed age of the particular construction phases.

Links

• GA103/00/0607, research and development project: Name: Transport solí pórovou strukturou betonu a podmínky vzniku eflorescentů na jeho povrchu

Investor: Czech Science Foundation, Salt transport in the porous structure of concrete and conditions of efflorescence formation on its surface

• GA103/99/0941, research and development project: Name: Zajištění spolehlivosti a životnosti staveb - ochrana a sanace stavebních materiálů a konstrukcí před účinky degradačních procesů

Investor: Czech Science Foundation, Reliability and durability of buildings protection of structural materials and structures from the effect of degradation processes and their rehabilitation