Pore System and Hydric Properties of Two Different Lime Plasters with Finely Crushed Brick

2016 ◽  
Vol 675-676 ◽  
pp. 597-600 ◽  
Author(s):  
Monika Čáchová ◽  
Eva Vejmelková ◽  
Kirill Polozhiy ◽  
Robert Černý
Keyword(s):  
Reference Material ◽  
Liquid Water ◽  
Mercury Porosimetry ◽  
Silica Sand ◽  
Pore System ◽  
Vacuum Saturation ◽  
Lime Plaster ◽  
Crushed Brick ◽  
Helium Pycnometry

Two different lime plasters with finely crushed brick are studied in this article. In the first plaster the pozzolan mixture was used as silica sand while in the second it was dosed as replacement of the lime substitute and silica sand (the substitution levels being 20% and 50%). Classic lime plaster was used as a reference material. Studied parameters were basic physical properties (measured by water vacuum saturation and by helium pycnometry), characterization of pore system (by mercury porosimetry) and transport of liquid water.

Basic and Thermal Characteristics of Render with Crushed Brick

2015 ◽  
Vol 824 ◽  
pp. 7-11
Author(s):  
Monika Čáchová ◽  
Eva Vejmelková ◽  
Martin Keppert ◽  
Lukáš Fiala
Keyword(s):  
Mercury Porosimetry ◽  
Thermal Characteristics ◽  
Waste Material ◽  
Silica Sand ◽  
Thermal Insulating ◽  
Vacuum Saturation ◽  
Cement Binder ◽  
Saturation Method ◽  
Crushed Brick ◽  
Pozzolanic Properties

Recycled finely crushed brick appears to be a suitable additive to lime or cement binder in render mixtures. This waste material indicates good pozzolanic properties and actively takes part in formation of chemical bonds in materials structure. The main objective of this paper is to find an appropriate ratio of waste crushed brick that is used as a replacement of other constituents represented by lime hydrate and silica sand. Besides it aims to find out a perspective utilization of such a waste material. Finely crushed brick originates from the production of thermal insulating brick blocks which is ecologically and economically advantageous. In this work, results of measured material parameters of render mixtures with different replacement ratios of binder (lime hydrate) and simultaneously filler (silica sand) by finely crushed brick are presented. Among the studied parameters basic physical properties (measured by water vacuum saturation method and by helium pycnometry), characterization of pore system (by mercury porosimetry) and thermal characteristics are presented.

Characterization of Building Stones Involved in Historical Masonry

2011 ◽  
Vol 324 ◽  
pp. 388-391 ◽  
Author(s):  
Zbyšek Pavlík ◽  
Eva Vejmelková ◽  
Milena Pavlíková ◽  
Martin Keppert ◽  
Robert Černý
Keyword(s):  
Mercury Porosimetry ◽  
Moisture Diffusivity ◽  
Water Vapor Transport ◽  
Historical Buildings ◽  
Water Absorption Coefficient ◽  
The Czech Republic ◽  
Vacuum Saturation ◽  
Historical Masonry ◽  
Saturation Method

Basic physical properties, pore size distribution and hygric properties of several types of stones which are used in reconstructions of historical buildings on the territory of the Czech Republic, namely several types of sandstone and argillite, are investigated. Basic physical characteristics are measured using the water vacuum saturation method, pore distribution by mercury porosimetry. Values of water absorption coefficient and apparent moisture diffusivity are determined by methods utilizing the results of water sorptivity measurements. Water vapor transport properties are accessed by the cup method. The obtained data represents valuable information for the application of studied materials in reconstructions and renewal of historical buildings.

Properties of Lime Plasters with Different Ceramic Powder Dosage

2014 ◽  
Vol 621 ◽  
pp. 19-23 ◽  
Author(s):  
Monika Čáchová ◽  
Dana Koňáková ◽  
Eva Vejmelková ◽  
Pavel Reiterman ◽  
Martin Keppert ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Water Transport ◽  
Liquid Water ◽  
Ceramic Powder ◽  
Experimental Methods ◽  
Silica Sand ◽  
Pore Characterization ◽  
Lime Plaster ◽  
Liquid Water Transport

Several lime-based plasters with fine ground brick content are studied in this article. In the first plaster the ceramics was used as lime substitute while in the second one it was dosed as replacement of the silica sand, the substitution levels being 20% and 50%. Pure lime plaster was use as a reference. Experimental methods and results of measuring basic physical properties, pore characterization, mechanical properties and liquid water transport are described. The plasters with fine ground brick were characterized by improved material’s properties in a comparison with pure lime plaster.

Characterization of a blast-furnace slag reference material SMP/E1-002

1995 ◽  
Vol 351 (2-3) ◽  
pp. 173-180
Author(s):  
J. J. LaBrecque ◽  
D. V. de Leyt ◽  
C. Vazquez
Keyword(s):  
Blast Furnace ◽  
Reference Material ◽  
Blast Furnace Slag ◽  
Furnace Slag

scholarly journals The production and characterization of SARS-CoV-2 RNA reference material

2021 ◽  
Author(s):  
Sema Akyurek ◽  
Sumeyra Nur Sanal Demirci ◽  
Zeynep Bayrak ◽  
Alper Isleyen ◽  
Muslum Akgoz
Keyword(s):  
Reference Material

Basic Physical and Mechanical Properties of Composites Based on Three Different Cements

2016 ◽  
Vol 677 ◽  
pp. 186-190 ◽  
Author(s):  
Monika Čáchová ◽  
Eva Vejmelková ◽  
Kateřina Šestáková ◽  
Pavel Reiterman ◽  
Martin Keppert ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Portland Cement ◽  
Open Porosity ◽  
Mercury Porosimetry ◽  
Physical And Mechanical Properties ◽  
Mineralogical Composition ◽  
Physical Parameters ◽  
Vacuum Saturation ◽  
Saturation Method ◽  
Properties Of Composites

This article is focused on cement based composites. Two cements differing in mineralogical composition are utilised as main binder in composites mixtures. Results of measured physical parameters of studied materials are presented. For the sake of comparison, a reference material with Portland cement was also prepared. Basic physical properties (measured by water vacuum saturation method and by helium pycnometry), characterizations of pore system (determined by mercury porosimetry) and mechanical properties are the matter of this study. Composites show various open porosity; the results of open porosity of materials containing special cements show higher values, in comparison with composite based on Portland cement. This fact of course influences other material characteristics - mainly mechanical properties.

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