keywords:"mortars" - Search Results - Digital Repository

guest :: login Digital Repository
		Search		Submit		Help		About

Home > Search Results: keywords:"mortars"

Search:

Search Tips :: Advanced Search

Search collections:

Sort by:	Display results:	Output format:

	Microscopic analysis of malt samples taken from the objects: tower of the monastery in Sázava, Apolinář in Prague Bauerová, Pavla ; Frankeová, Dita ; Vondráčková, Michaela Using an electron microscope and EDS analysis, samples from two locations were examined - a sample of mortar from the tower of the monastery in Sázava and two samples of plaster from the Apolinař building in Prague (Apolinář - face, Apolinář - soil). The aim of the investigation was to determine the type of binder for plasters and coatings on plaster. A strongly hydraulic binder was identified in all three analyzed samples. Detailed record
	Microscopic analysis of the mortars sampled from the Hradenín fortress Frankeová, Dita ; Bauerová, Pavla ; Vondráčková, Michaela ; Slížková, Zuzana Two mortar samples and one sample of plaster of the exterior facade from the Gothic fortress Hradenín were examined using an electron microscope. The aim of study was to determine the type of mortar binder and to find out the technological procedure of surface coating application. Detailed record
	Report on survey of salinity of masonries under 3rd courtyard at Prague Castle Slížková, Zuzana ; Náhunková, Pavla In 2022, the characterization of the chemical composition and amount of salt efflorescence on archaeological constructions under Prague Castle was supplemented by two new locations (at the site of the foundations of the Chapel of St. Bartholomew and near the northern wall of zone III). In the results, carbonate minerals were not detected as in previous years (except for calcite in small quantities). Sodium sulfate was again the majority component in the efflorescences. Using thermal analysis, the presence of sodium sulfate in the form of mirabilite was confirmed in the samples taken in February. The high contamination of marlstone with nitrates and chlorides in today's crown of the chapel's masonry of St. Bartholomew and increased sulfate contamination in the plinth section was detected. Conversely, no risk values of water-soluble ions were detected in the mortar or the black bricks of the perimeter wall. Detailed record
	Selection of mortars samples for radiocarbon dating Válek, Jan ; Kozlovcev, Petr ; Fialová, Anna ; Kotková, Kristýna ; Frankeová, Dita ; Skružná, Olga ; Maříková-Kubková, Jana ; Tomanová, Pavla ; Herichová, Iva ; Světlík, Ivo ; Pachnerová Brabcová, Kateřina ; Šimek, Pavel Radiocarbon dating of organic residues may not always correctly determine the age of analysed historic mortars. Therefore, it seems advantageous to use of carbon dating of the carbon contained in the structure of the lime mortar, which will provide representative data of the age of the investigated structure. The methodology presents basic instructions and rules for sample selection, processing, and evaluation. The aim of this methodology is the identification of cases where the radiocarbon dating of a binder is appropriate and to define the reasons why some binder systems fail to provide relevant results. Plný tet: PDF; PDF Detailed record
	Preparation of mortars samples for radiocarbon dating by mechanical separation Válek, Jan ; Kotková, Kristýna ; Fialová, Anna ; Kozlovcev, Petr ; Králová, Karolína ; Světlík, Ivo ; Pachnerová Brabcová, Kateřina The methodology establishes the procedure for mechanical separation of the binder from the mortars to determine their age using the radiocarbon method. Along with the procedure, there is also a method of verifying the quality of purification using optical microscopy supplemented with cathode luminescence. The methodology is developed on the basis of the current state of knowledge and presents the basic sample preparation procedure in the form of a detailed description of the proven method of mechanical separation of the binder from lime mortar samples together with possible problems and an evaluation of the separation quality. Plný tet: PDF; PDF Detailed record
	Chemical and microstructural characterization of building materials sampled from Kamenička waterwork Frankeová, Dita ; Bauerová, Pavla ; Koudelková, Veronika ; Slížková, Zuzana Within the construction-technical survey framework, a microscopic analysis of historical concrete samples was performed using a scanning electron microscope and SEM-EDS analysis. Characterization of mortar components, determination of concrete degradation degree, and identification of chemical corrosion products. The results of the survey work were used as a basis for the reconstruction project.\n Detailed record
	Chemical and microstructural characterization of building materials sampled from the house No. 86, Nám. 1. máje, Chomutov Frankeová, Dita ; Slížková, Zuzana ; Jurkovská, Lucie As part of the construction and technical survey, a microscopic analysis of samples of historic and modern core plaster and stucco was performed using a scanning electron microscope and SEM ‐ EDS analysis. Characterization of the aggregate and binder components of mortars was performed, comparison of mortars from different construction stages. The results of the survey work were used as a basis for the design of the reconstruction of the building. Detailed record
	Analysis of art objects by mass spectrometry Kučková, Štěpánka ; Hynek, R. ; Kodíček, M. This paper reviews the latest progress in the identification of the proteinaceous materials and organic dyes presented in art and in historical building materials using mass spectrometry as a dominant method. Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.

Digital Repository :: :: :: ::
Powered by v1.1.2
Maintained by

This site is also available in the following languages:
Česky English