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ASSESSMENT OF ADHESION BETWEEN MINERAL AGGREGATE AND BITUMINOUS BINDER USING DIGITAL IMAGE ANALYSIS 

Trejbal, Jan; Prošek, Zdeněk; Valentová, Tereza (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
This work presents how to assess a rate of adhesion between bituminous binder and mineral aggregate. Asphalt mixtures composed from grade bitumen 50/70, reference or modified with adhesion promoters based on amines, and ...

CEMENT PASTE CONTAINING MICRONIZED RECYCLED CONCRETE - INFLUENCE OF HARDENING ACCELERATORS ON THE MODULUS OF ELASTICITY 

Ďureje, Jakub; Prošek, Zdeněk (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
The article deals with the selection of a suitable hardening accelerator for cement composite material for mass production of masonry blocks. The blocks contain cement and finely ground recycled concrete in ratio 1:1. Three ...

MECHANICAL PROPERTIES OF CEMENT COMPOSITE CONTAINING RECYCLED CONCRETE AND ALKALI ACTIVATED BLAST FURNACE SLAG 

Horych, Jan; Tesárek, Pavel; Prošek, Zdeněk (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
Recycling of materials is very popular and very important in these days. Finding the new ways to process and use these materials is a key to get rid of a lot of construction waste. The amount of landfilling needs to be ...

LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIES 

Prošek, Zdeněk; Tesárek, Pavel (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
The article focuses on the impact of different type of mixing approach on resulting mechanical properties of cement composites. The monitored parameters of the mixing approach were the speed of mixing and the method of ...

MICROSCOPIC AND PHASE ANALYSIS OF CEMENT PASTE CONTAINING WASTE MICRONIZED MARBLE POWDER 

Prošek, Zdeněk; Tesárek, Pavel; Trejbal, Jan (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
The article focuses on the impact of waste marble powder on resulting cement composites. We investigate of influence waste marble powder on the hydration process and hence the resulting phase composition. The hydration ...

Influence of oxygen and argon plasma treatment on wettability and surface morphology of polypropylene microfibers 

Ďureje, Jakub; Prošek, Zdeněk; Trejbal, Jan; Potocký, Štepán; Tesárek, Pavel (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
The surface treatment of polypropylene microfibers by plasma processing in oxygen and argon was studied with the motivation to increase their cohesion with the cement matrix. By plasma treatment, it is possible to modify ...

Thermal properties of mineral wool insulation recovered from construction and demolition waste 

Domonkos, Mária; Zobal, Ondřej; Prošek, Zdeněk; Trejbal, Jan (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
Mineral wool is one of the most commonly used types of thermal insulation in the European Union at the present, however, it generates massive amounts of waste. From an environmental standpoint, recycling or reuse of ...

PERFORMANCE OF CEMENT COMPOSITES REINFORCED WITH SURFACE-MODIFIED POLYPROPYLENE MICRO- AND MACRO-FIBERS 

Antoš, Jakub; Dejdar, Lukáš; Trejbal, Jan; Prošek, Zdeněk (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
This paper focuses on the mechanical properties investigation of cement pastes reinforced with surface treated polymer fibers. The cement matrix was composed of Portland cement (CEM I 42.5 R, w/c ratio equal to 0.4). Two ...

PULLOUT BEHAVIOR OF OXYGEN PLASMA TREATED POLYMER FIBERS FROM CEMENT MATRIX 

Trejbal, Jan; Horová, Tereza; Prošek, Zdeněk (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
The aim of this work is to describe bonding properties between surface treated polymer fibers and a cement matrix. In order to increase an interaction between the matrix and fiber surfaces, two fiber types having approx. ...

HYDRATION PROCESS AND MECHANICAL PROPERTIES OF CEMENT PASTE WITH RECYCLED CONCRETE POWDER AND SILICA SAND POWDER 

Topič, Jaroslav; Prošek, Zdeněk (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
Recycled concrete powder (RCP) mostly consisting of cement paste could be reused as partial cement replacement. The aim of this paper is to compare hydration and mechanical properties of RCP and two types of silica sand ...
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Prošek, Zdeněk (40)
Tesárek, Pavel (15)Trejbal, Jan (14)Ďureje, Jakub (7)Sekavová, Hana (5)Hlůžek, Radim (3)Hrbek, Vladimír (3)Palička, Aleš (3)Topič, Jaroslav (3)Chylík, Roman (2)... View More

České vysoké učení technické v Praze copyright © 2016 

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