Prohlížení Acta Polytechnica CTU Proceedings. 2019, vol. 22 dle autora "Alexa, Martin"
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ANALYSIS OF THE INFLUENCE OF TRANSDUCER FREQUENCY ON THE ULTRASONIC MEASUREMENT OF CONCRETE HOMOGENEITY
Autor: Kocáb, Dalibor; Misák, Petr; Jindrová, Barbora; Alexa, Martin; Vymazal, Tomáš
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)The paper analyses the influence of transducer frequency on the determination of concrete homogeneity using the ultrasonic pulse velocity test. Transit time measurements were made on a 590×590mm concrete slab, with 110mm ... -
EXPERIMENTAL ANALYSIS FOCUSED ON THE MATERIAL CHARACTERISTICS OF THE CEMENT-BASED POLYMER-MODIFIED MORTARS
Autor: Kucharczyková, Barbara; Šimonová, Hana; Halamová, Romana; Kocáb, Dalibor; Alexa, Martin
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)The article deals with the experimental analysis focused on the development of the physical and mechanical characteristics of the cement-based polymer-modified mortars (PCM) during ageing. Two different commercial products ... -
THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAG
Autor: Alexa, Martin; Kocáb, Dalibor; Kucharczyková, Barbara; Kotrla, Jan
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)The paper investigates the way a shrinkage-reducing admixture affects the long-term development of dynamic properties in mortars made with alkali-activated slag (AAS). Two AAS mortars were tested - one contained a ...