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Study of the effect of selected types of aditives on the properties of cement composites
Kavka, Lukáš ; Ťažký, Tomáš (referee) ; Bodnárová, Lenka (advisor)
The diploma thesis describes admixtures for concrete. It deals with the influence of admixtures on the properties of cement composites in the fresh and hardened state. The theoretical part described the individual components of concrete, where the main attention was focused to inert admixtures and their effect on mechanical properties, shrinkage, resistance of cement composites to aggressive medium. Furthermore, the effect of admixtures on concretes with recycled aggregates was described. In the first stage of the practical part, cement mortars with 25, 35 and 50% replacement of cement admixtures were created. In the second stage, concretes with admixtures and a minimum strength class of C30/37 and C50/60 were created. Finely ground granulated slag, micronized limestone and granite stone dust were used as admixtures in mortars and concretes. The change of properties in the fresh and hardened state was observed on cement composites.
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Mixing cement for special purposes
Hrdina, Matěj ; Kulísek, Karel (referee) ; Fridrichová, Marcela (advisor)
Thesis deals with the technology of production of portland cement its raw material composition, mineralogical composition, theory of clinker minerals during firing and possible mixing with other materials suitable character. It provides an overview of specialty cements. It was prepare a proposal cement mixtures normatively called "Masonry cement." Cement was examined on required properties depending on the amount and the type of chemical additives.
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Study of the effect of selected types of aditives on the properties of cement composites
Kavka, Lukáš ; Ťažký, Tomáš (referee) ; Bodnárová, Lenka (advisor)
The diploma thesis describes admixtures for concrete. It deals with the influence of admixtures on the properties of cement composites in the fresh and hardened state. The theoretical part described the individual components of concrete, where the main attention was focused to inert admixtures and their effect on mechanical properties, shrinkage, resistance of cement composites to aggressive medium. Furthermore, the effect of admixtures on concretes with recycled aggregates was described. In the first stage of the practical part, cement mortars with 25, 35 and 50% replacement of cement admixtures were created. In the second stage, concretes with admixtures and a minimum strength class of C30/37 and C50/60 were created. Finely ground granulated slag, micronized limestone and granite stone dust were used as admixtures in mortars and concretes. The change of properties in the fresh and hardened state was observed on cement composites.
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| |
|
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Mixing cement for special purposes
Hrdina, Matěj ; Kulísek, Karel (referee) ; Fridrichová, Marcela (advisor)
Thesis deals with the technology of production of portland cement its raw material composition, mineralogical composition, theory of clinker minerals during firing and possible mixing with other materials suitable character. It provides an overview of specialty cements. It was prepare a proposal cement mixtures normatively called "Masonry cement." Cement was examined on required properties depending on the amount and the type of chemical additives.
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