• The fly ash of class C for ceramic technology 

  Sokolář, Radomír; Nguyen, Martin (IOP Publishing, 2018-07-16)

  The properties of different Czech fluidized fly ashes FFA (class C fly ash according to ASTM C618 12a with high content of CaO in the form of anhydrite primarily) and emisions of SO2 in flue gas during the firing of FFA ...

• Mortars with crystalline additive in aggressive environments 

  Žižková, Nikol; Nevřivová, Lenka; Lédl, Matěj; Keprdová, Šárka (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 ...

• Utilization of by-products for vacuum insulation panels production 

  Zach, Jiří; Peterková, Jitka; Novák, Vítězslav (IOP Publishing, 2018-07-12)

  The paper deals with the possibilities of utilization of alternative raw materials from the textile industry for the production of vacuum insulation panels with extremely low thermal conductivity value. The paper presents ...

• Optimization of heavy weight concrete composition and process of prefabrication for prefabricated shielding cladding tiles 

  Hela, Rudolf; Jančaříková, Denisa; Louda, Pavel; Jobánek, Jaromír (IOP Publishing, 2018-06-15)

  The aim of experimental research was to verify the possibility of the prefabrication of the thin shielding cladding tiles from heavy weight concrete with fine.

• The influence of the raw materials mixture on the properties of forsterite ceramics 

  Nguyen, Martin; Sokolář, Radomír (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. ...

• The Effect of Hydrophobization on the Properties of Mortar Mixtures 

  Novák, Vítězslav; Zach, Jiří (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 ...

• The microstructure of a cement composite based on a secondary raw materials 

  Figala, Petr; Drochytka, Rostislav (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 ...

• Study of the Behaviour of Thermal Insulation Materials Made with Recycled Textile Fibers 

  Zach, Jiří; Novák, Vítězslav; Peterková, Jitka (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 ...

• Variability in cement properties - influence on bleeding of cement paste 

  Jančaříková, Denisa; Hela, Rudolf; Netsvet, Daria Dmitrievna; Peřina, Tomáš (IOP Publishing, 2018-06-15)

  The aim of this study is to find relation between cement properties and tendency of cement paste (concrete) to bleeding. We tested 19 cement samples collected from different batches.

• The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars 

  Majerová, Jana; Drochytka, Rostislav (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 ...

• Development of Ultra High Performance Concrete and Reactive Powder Concrete with Nanosilica 

  Hela, Rudolf; Bodnárová, Lenka; Rundt, Lukáš (IOP Publishing, 2018-06-19)

  The article is dedicated to the design and production of Ultra High Performance Concrete (UHPC) and Reactive The article is dedicated to the design and production of Ultra High Performance Concrete (UHPC) and Reactive ...

• Alternative Evaluation of the grindability of Pozzolanic Materials for Cement Production 

  Dvořák, Karel; Dolák, Dušan (IOP Publishing, 2017-10-25)

  All conventional methods for the evaluation of grindability require a specific grinding instrument. These grinding instruments do not have any other practical use and thus are not very common. This paper focuses on the ...

• Raw materials for mullite grog manufacturing 

  Nevřivová, Lenka (IOP Publishing, 2018-07-07)

  The primary condition for manufacturing is the correct choice of raw material, a suitable treatment facility, and a kiln capable of firing at temperatures above 1400 °C. This paper assesses some local raw materials for ...

• Techniques of Soil Modification for Re-use in Construction 

  Michalčíková, Magdaléna; Drochytka, Rostislav (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 ...

• The evaluation of the effect of crystallization additives on long term durability of self-compacting concrete 

  Dufka, Amos; Melichar, Tomáš (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 ...

• Methods of testing the properties of fibre-cement composites 

  Bodnárová, Lenka; Hoško, Marek; Martinec, Petr (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 ...

• Monitoring the long-term durability and microstructure of polymer concrete patching materials with high content of secondary raw materials using advanced methods 

  Hodul, Jakub; Mészárosová, Lenka; Drochytka, Rostislav (IOP Publishing, 2018-07-16)

  For commercially produced polymer systems, only primary raw materials are used as fillers. These fillers are predominantly pure silica sand of various grading. The substitution of primary materials with secondary raw ...

• Usability of alternative admixtures for the production of blended cements 

  Sklenářová, Dorothea; Dvořák, Karel; Gazdič, Dominik; Hladík, Václav (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 ...

• Study of hydration process of ternesite clinker 

  Fridrichová, Marcela; Gazdič, Dominik; Dvořák, Karel; Mokrá, Jana; Kulísek, Karel (IOP Publishing, 2018-07-16)

  Currently ternesite, Ca5(SiO4)2SO4, is used in the cement production, is one of two key phases of calcium sulfoaluminate cement. Some investigators claim that this phase is nearly inert or very low reactive and it hydrates ...

• Impact of the grinding process on the granulometric properties of triclinic alite 

  Ravaszová, Simona; Dvořák, Karel (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 ...

Zobrazit další