Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Petr Šašek"'
Autor:
Konstantinos SOTIRIADIS, Petr ŠAŠEK, Radek ŠEVČÍK, Pavel SCHMIDT, Michal ŘEHOŘ, Alberto VIANI
Publikováno v:
Medžiagotyra, Vol 23, Iss 1, Pp 64-69 (2017)
Three dumped raw materials, a tuff and two bentonites, obtained from two mining sites at the North Bohemian basin in the Czech Republic, have been studied in order to evaluate them as pozzolanic admixtures in lime mortars for employment in restoratio
Externí odkaz:
https://doaj.org/article/0266cfb806a147f6ab412c6f853fe0cf
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 7, Iss 0, Pp 12-16 (2016)
The use of waste material and replacement of binder element in cementitious composites is in focus of material development. Perlite in the construction industry is usually used in form of lightweight aggregate enhancing the insulating performance of
Externí odkaz:
https://doaj.org/article/70e2b57bf46e448b8f3ae3e1d8ba881a
Autor:
Petr Šašek, Konstantinos Sotiriadis, Michal Řehoř, Jaroslav Závada, Zuzana Slížková, Petra Mácová
Publikováno v:
Materials
Volume 13
Issue 23
Materials, Vol 13, Iss 5458, p 5458 (2020)
Volume 13
Issue 23
Materials, Vol 13, Iss 5458, p 5458 (2020)
Foam glass production process redounds to large quantities of waste that, if not recycled, are stockpiled in the environment. In this work, increasing amounts of waste foam glass were used to produce metakaolin-based alkali-activated composites. Phas
Publikováno v:
Applied Clay Science. 163:108-118
Fired-clay bricks are frequently object of conservative actions aimed at the preservation of cultural heritage. Information on firing conditions is relevant for the production of custom made replacement bricks, since, as a widely accepted principle,
Publikováno v:
Journal of Materials Science. 53:4022-4033
The synthetic anhydrous crystalline CaCO3 polymorphs—vaterite, aragonite and calcite—were tested using dilatometry and nanoindentation. Microstructural changes in the samples before and after measurements were observed under scanning electron mic
Publikováno v:
Ceramics International. 42:16310-16316
The reactivity of the MgO powder employed in the formulation of Mg–K phosphate ceramics can be modulated through the calcination temperature of MgCO 3 source material, which has a direct impact on production costs. Upon annealing, MgO undergoes sin
Autor:
Petr Šašek, Jiří Minster
Publikováno v:
Defect and Diffusion Forum. 368:182-185
The aim of the research presented here was to assess the influence of climatic loading on the basic mechanical properties of polymer sealants, from the viewpoint of their application in creating and repairing outdoor mosaics. Six promising sealants w
Publikováno v:
Materials Characterization. 116:33-43
Full characterization of fired-clay bricks is crucial for the improvement of process variables in manufacturing and, in case of old bricks, for restoration/replacement purposes. To this aim, five bricks produced in a plant in Czech Republic in the pa
Publikováno v:
Construction and Building Materials. 112:674-681
Silicon alkoxides, such as silicon ethoxide or its oligomers (generally called ethylsilicates), are excellent consolidants for the weathered silicate materials. Their drawbacks, the shrinkage and cracking, can be reduced by the formation of wider por
Autor:
Alberto Viani, Petra Mácová, Petr Šašek, Marta Pérez-Estébanez, Konstantinos Sotiriadis, Radek Ševčík
Publikováno v:
Journal of Raman Spectroscopy. 47:1452-1457
Micro-Raman spectroscopy has been used to follow the carbonation reaction up to 16 weeks in lime paste produced with a traditional technology and cured under controlled conditions. The transformation of calcium hydroxide into calcium carbonate was vi