Search Results - "Hajzler, Jan"

The Effect of Pyrolysis Temperature and the Source Biomass on the Properties of Biochar Produced for the Agronomical Applications as the Soil Conditioner by Kalina, Michal, Sovova, Sarka, Svec, Jiri, Trudicova, Monika, Hajzler, Jan, Kubikova, Leona, Enev, Vojtech

“…Biochar is a versatile carbon-rich organic material originating from pyrolyzed biomass residues that possess the potential to stabilize organic carbon in the…”
Get full text

The Effects of Silica Fume and Superplasticizer Type on the Properties and Microstructure of Reactive Powder Concrete by Šoukal, František, Bocian, Luboš, Novotný, Radoslav, Dlabajová, Lucie, Šuleková, Nikola, Hajzler, Jan, Koutný, Ondřej, Drdlová, Martina

“…This paper deals with the optimization of reactive powder concrete mixtures with respect to the addition of silica fume and the type of polycarboxylate…”
Get full text

Experimental Study of Slag Changes during the Very Early Stages of Its Alkaline Activation by Bílek, Jr, Vlastimil, Hrubý, Petr, Iliushchenko, Valeriia, Koplík, Jan, Kříkala, Jakub, Marko, Michal, Hajzler, Jan, Kalina, Lukáš

“…The very early stages of alkaline activation of slag control its rheology and setting, but also affect its hydration, which occurs later. Simultaneously, these…”
Get full text

Biochar Texture—A Parameter Influencing Physicochemical Properties, Morphology, and Agronomical Potential by Kalina, Michal, Sovova, Sarka, Hajzler, Jan, Kubikova, Leona, Trudicova, Monika, Smilek, Jiri, Enev, Vojtech

“…Biochar represents a stable form of carbon-rich organic material produced by the pyrolysis of various biomass residues. It has the potential to stabilize…”
Get full text

Novel Hydrogel Material with Tailored Internal Architecture Modified by "Bio" Amphiphilic Components-Design and Analysis by a Physico-Chemical Approach by Heger, Richard, Kadlec, Martin, Trudicova, Monika, Zinkovska, Natalia, Hajzler, Jan, Pekar, Miloslav, Smilek, Jiri

“…Nowadays, hydrogels are found in many applications ranging from the industrial to the biological (e.g., tissue engineering, drug delivery systems, cosmetics,…”
Get full text

Monitoring of Ion Mobility in the Cement Matrix to Establish Sensitivity to the ASR Caused by External Sources by Marko, Michal, Hrubý, Petr, Janča, Martin, Kříkala, Jakub, Hajzler, Jan, Šoukal, František, Vojtíšek, Jan, Doležal, Martin

“…The possibility of the formation of an alkali–silicate reaction (ASR) is a crucial issue for the service life of concrete. The coexistence of key parameters…”
Get full text

Application of Isothermal and Isoperibolic Calorimetry to Assess the Effect of Zinc on Hydration of Cement Blended with Slag by Šiler, Pavel, Kolářová, Iva, Novotný, Radoslav, Másilko, Jiří, Bednárek, Jan, Janča, Martin, Koplík, Jan, Hajzler, Jan, Matějka, Lukáš, Marko, Michal, Pokorný, Přemysl, Opravil, Tomáš, Šoukal, František

“…This work deals with the influence of zinc on cement hydration. The amount of zinc in cement has increased over recent years. This is mainly due to the…”
Get full text

Use of Isothermal and Isoperibolic Calorimetry to Study the Effect of Zinc on Hydration of Cement Blended with Fly Ash by Šiler, Pavel, Kolářová, Iva, Novotný, Radoslav, Másilko, Jiří, Bednárek, Jan, Janča, Martin, Koplík, Jan, Hajzler, Jan, Matějka, Lukáš, Marko, Michal, Švec, Jiří, Zlámal, Martin, Kuzielová, Eva, Opravil, Tomáš, Šoukal, František

“…Increasing utilization of secondary raw materials and alternative fuels results in increasing contents of metals in cements. Zinc is one of these elements. It…”
Get full text

Doubts over capillary pressure theory in context with drying and autogenous shrinkage of alkali-activated materials by Kalina, Lukáš, Bílek, Vlastimil, Bartoníčková, Eva, Kalina, Michal, Hajzler, Jan, Novotný, Radoslav

“…•Amino alcohol surfactants reduced the surface tension of AAS pore solutions.•Surfactants had a minor effect on autogenous shrinkage.•Drying shrinkage was…”
Get full text

Correction: Comparison of thermogravimetry response of alkali-activated slag and Portland cement pastes after stopping their hydration using solvent exchange method by Bílek, Vlastimil, Švec, Jiří, Másilko, Jiří, Sedlačík, Martin, Materak, Kalina, Wieczorek, Alicja, Koniorczyk, Marcin, Hajzler, Jan, Kucharczyková, Barbara

Get full text

Comprehensive study of moist curing duration and activator type on mechanical properties, shrinkage, and cracking of alkali-activated slag by Kucharczyková, Barbara, Nápravník, Petr, Kocáb, Dalibor, Lisztwan, Dominik, Rovnaník, Pavel, Hajzler, Jan, Bílek, Vlastimil

“…Despite the considerable research efforts, shrinkage and cracking of alkali-activated slag (AAS) is still a delicate issue. One of the reasons is the enormous…”
Get full text

Comparison of thermogravimetry response of alkali-activated slag and Portland cement pastes after stopping their hydration using solvent exchange method by Bílek, Vlastimil, Švec, Jiří, Másilko, Jiří, Sedlačík, Martin, Materak, Kalina, Wieczorek, Alicja, Koniorczyk, Marcin, Hajzler, Jan, Kucharczyková, Barbara

“…Abstract The critical step for any subsequent instrumental analysis of cementitious binders is to stop their hydration reactions, i.e., to remove free water…”
Get full text

Influence of alkali metal formates and calcium formate on workability, hydration and basic properties of reactive powder concrete by Šuleková, Nikola, Šoukal, František, Novotný, Radoslav, Sedlačík, Martin, Švec, Jiří, Másilko, Jiří, Ptáček, Petr, Bocian, Luboš, Hajzler, Jan, Marko, Michal

“…Abstract This work aims to study whether it would be possible to use alkali metal formates and calcium formate in order to increase the workability of reactive…”
Get full text

Simultaneous thermogravimetric and differential thermal analysis determination of products formed during hydration of blended Portland cement doped with zinc by Švec, Jiří, Šiler, Pavel, Másilko, Jiří, Novotný, Radoslav, Koplík, Jan, Janča, Martin, Hajzler, Jan, Matějka, Lukáš, Opravil, Tomáš, Kolářová, Iva

“…With the increasing use of secondary raw materials and alternative fuels in the cement production industry, the amount of present trash elements rapidly…”
Get full text

The effect of biochar application on soil properties and growth of the model plant Zea mays by Sovova, Sarka, Enev, Voitech, Smilek, Jiri, Kubikova, Leona, Trudicova, Monika, Hajzler, Jan, Kalina, Michal

“…The classic way of land cultivation means the use of inorganic fertilizers that are salts that dissolve rapidly in a short time and improve soil fertility…”
Get full text