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Development of new technology of sand autoclaved aerated concrete with using of secondary raw materials
Ondříčková, Pavlína ; Suchý, Peter (referee) ; Drochytka, Rostislav (advisor)
Autoclaved sand aerated concrete is a modern building material with high thermal insulation properties. Only sand is used as the primary silicate component of aerated concrete in the Czech Republic. For the more favourable economic and ecological properties of aerated concrete, the use of secondary raw materials is used in this work. The secondary raw materials examined included fluidized bed and fly ash, slag and glass recycled. The aerated concrete composite with secondary admixtures was developed under hydrothermal conditions of a laboratory autoclave for 7 and 12 hours at 190°C. From the secondary raw materials tested, a 10% glass recycler additive yielded the highest strength. Other additives that have a positive effect on mechanical properties include SAKO and Oslavany. From the results of the work it is evident that the use of secondary raw materials increases the strength, improves the rheology of the mixture and supports the formation of tobermorite.
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Utilization of alternative raw materials in sand aerated concrete technology
Ondříčková, Pavlína ; Kulísek, Karel (referee) ; Drochytka, Rostislav (advisor)
The presented work deals with the problems about silica sand replacement for alternative raw materials in the production of autoclaved aerated concrete. The work describes technology of production and creating structures of autoclaved aerated concrete. The main part of the work is the study scientific articles dealing with alternative materials in autoclaved silicate materials. The object of work is to find the most suitable domestic alternative materials for supplement or replacement for silica sand in production of autoclaved aerated concrete.
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Development of new technology of sand autoclaved aerated concrete with using of secondary raw materials
Ondříčková, Pavlína ; Suchý, Peter (referee) ; Drochytka, Rostislav (advisor)
Autoclaved sand aerated concrete is a modern building material with high thermal insulation properties. Only sand is used as the primary silicate component of aerated concrete in the Czech Republic. For the more favourable economic and ecological properties of aerated concrete, the use of secondary raw materials is used in this work. The secondary raw materials examined included fluidized bed and fly ash, slag and glass recycled. The aerated concrete composite with secondary admixtures was developed under hydrothermal conditions of a laboratory autoclave for 7 and 12 hours at 190°C. From the secondary raw materials tested, a 10% glass recycler additive yielded the highest strength. Other additives that have a positive effect on mechanical properties include SAKO and Oslavany. From the results of the work it is evident that the use of secondary raw materials increases the strength, improves the rheology of the mixture and supports the formation of tobermorite.
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Utilization of alternative raw materials in sand aerated concrete technology
Ondříčková, Pavlína ; Kulísek, Karel (referee) ; Drochytka, Rostislav (advisor)
The presented work deals with the problems about silica sand replacement for alternative raw materials in the production of autoclaved aerated concrete. The work describes technology of production and creating structures of autoclaved aerated concrete. The main part of the work is the study scientific articles dealing with alternative materials in autoclaved silicate materials. The object of work is to find the most suitable domestic alternative materials for supplement or replacement for silica sand in production of autoclaved aerated concrete.
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