Browsing Ústav technologie stavebních hmot a dílců by Issue Date
Now showing items 41-60 of 110
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Usability of alternative admixtures for the production of blended cements
(IOP Publishing, 2018-07-16)This paper studies how pozzolan materials can be mechanically activated. For this, two major grinding technologies and different types of artificial pozzolans, such as red brick dust, granulated blastfurnace slag and sheet ... -
Impact of the grinding process on the granulometric properties of triclinic alite
(IOP Publishing, 2018-07-16)Four major clinker minerals, alite, belite, tricalcium aluminate and tetracalcium aluminate ferrite are crucial for cement properties. This work deals with alite as the most important clinker minerals. Alite is affected ... -
The evaluation of the effect of crystallization additives on long term durability of self-compacting concrete
(IOP Publishing, 2018-07-16)The article deals with the influence of crystallisation additives on the life of self-compacting concrete (so-called SCC concrete) in case of exposure to aggressive gases. The effect of crystallization additives on the ... -
Techniques of Soil Modification for Re-use in Construction
(IOP Publishing, 2018-07-16)Nowadays effort is made to study what effects may impact the environment and to address the issue of waste management. The majority of all waste produced is construction waste and demolition debris (approx. 65%). This ... -
Effect of wood chips properties on mineralogical composition and microstructure of silicate matrix based composites
(IOP Publishing, 2018-07-16)The research presented in this article was focused on proving the effect of wood chips parameters on the hardening process of silicate matrix in cement-bonded particleboard. Namely content of humidity in the chips (in range ... -
The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars
(IOP Publishing, 2018-07-16)The renovation and replacement of historical plasters is still a very current topic. Today’s trend is for the production of dry mortar mixtures that can be used for the renovation of historic buildings. The article therefore ... -
The microstructure of a cement composite based on a secondary raw materials
(IOP Publishing, 2018-07-16)Waste management and its use as a secondary raw material is a matter that is being given increasing attention. Such raw materials also include waste products from the energy industry or municipal waste disposed of from the ... -
The influence of the raw materials mixture on the properties of forsterite ceramics
(IOP Publishing, 2018-07-16)Forsterite ceramics is a part of the refractory magnesium ceramics. The aim of this paper is to characterize the properties of forsterite ceramics in dependence on different compositions of the raw material mixture. ... -
Mortars with crystalline additive in aggressive environments
(IOP Publishing, 2018-07-16)The paper describes how a crystalline additive influences the properties of cementbased composites. The investigation was focused on the degradation of mortars with crystalline additive exposed to selected aggressive ... -
Methods of testing the properties of fibre-cement composites
(IOP Publishing, 2018-07-16)The paper deals with process of manufacturing the fibre-cement materials and methods of testing their climatic performance. Basic raw materials for production fibre-cement sheets are cement, cellulose fibers, reinforcing ... -
Study of the Behaviour of Thermal Insulation Materials Made with Recycled Textile Fibers
(IOP Publishing, 2018-08-01)The requirements placed on the thermal protection of buildings are becoming stricter worldwide, which causes an increased demand after thermal insulation materials. One of the ways of achieving sustainable development in ... -
The Effect of Hydrophobization on the Properties of Mortar Mixtures
(IOP Publishing, 2018-08-01)One of the possible methods to reduce degradation effects due to the influence of moisture on building structures and materials is the use of hydrophobic agents - hydrophobization. The article deals with the influence of ... -
Wear of grinding rotors with thermally-sprayed coatings in a high-speed mill
(Elsevier, 2018-10-15)In this paper, the erosion behavior of three types of protective thermally-sprayed coatings and non-coated substrate steel was investigated under semi-industrial test conditions using a laboratory high-speed pin mill DESI-11. ... -
Effect of Inorganic SiO2 Nanofibers in High Strength Cementitious Composites
(EDP Series, 2019-04-08)The paper deals with the verification of the effect of the addition of inorganic SiO2 nanofibers to cement composites. In the first stage, a stable suspension of SiO2 nanofibers was prepared in an aqueous medium. It is ... -
The Physical Properties Of Cementitious Composites For Applications In A High-Temperature Energy Storage Device
(Czech Technical University in Prague, 2019-05-12)The article was focused on experimental verification of the identification of thermal characteristics of high-performance cementitious composites at elevated temperatures. The purpose of the research was to verify the ... -
Use of Secondary Crystallization and Fly Ash in Waterproofing Materials to Increase Concrete Resistance to Aggressive Gases and Liquids
(Hindawi Limited, 2019-05-30)This paper describes the use of cement-based waterproofing screed and waterproofing coating, in which 10% of the original amount of cement was replaced by fly ash and 2% of the crystallization admixture was added by weight ... -
Stabilization of the ammonia in SNCR fly ash - the influence of tannins presence on the preparation of an autoclaved aerated concrete
(IOP Publishing, 2019-08-14)Thanks to the legislative regulations on NOx emissions, a selective non-catalytic reduction (SNCR) technology had been introduced to a coal combustion process in power plants. The valuable by-product, fly ash, contains ... -
The influence of green walls on interior climate conditions and human health
(EDP Sciences, 2019-09-02)In recent years, many researchers have addressed the issue of interior climate and how it affects human health. Investigations performed at schools and office buildings have found that CO2 concentrations often exceed the ... -
Study of behaviour of thermal insulation materials under extremely low pressure
(EDP Sciences, 2019-09-02)In most thermal insulation materials, reduced internal pressure improves thermal insulation properties. It reduces heat transport by convection as well as heat conduction in gases in the material´s pore structure. The ... -
Impact of Aggressive Media on the Properties of Polymeric Coatings with Solidification Products as Fillers
(MDPI, 2019-11-26)Dealing with waste materials, particularly hazardous waste, is a serious problem. Disposal areas keep growing, and the costs incurred are high. Disposing of such waste reduces negative environmental impacts and offers ...