Author
Robert Černý
Bio: Robert Černý is an academic researcher from Czech Technical University in Prague. The author has contributed to research in topics: Moisture & Thermal diffusivity. The author has an hindex of 39, co-authored 515 publications receiving 5565 citations.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the authors present the measurements of complete sets of heat and moisture transport and storage parameters of selected thermal insulation materials in dependence on moisture content, such as hydrophobic mineral wool and expanded polystyrene.
220 citations
TL;DR: In this paper, complete sets of hygric and thermal properties of three commercially produced aerated concrete (AAC) with different bulk density and compressive strength are measured, together with the basic physical characteristics and durability properties.
183 citations
TL;DR: In this paper, four transient experimental methods for the study of surface diffusion of gases and liquids in porous media are critically reviewed, based on the measurement of a physical quantity that is sensible to a change in the surface diffusivity so that experimental data can be used to extract a value of the surface diffusion.
158 citations
TL;DR: In this paper, the basic physical characteristics, mechanical and fracture-mechanics properties, durability characteristics, hydric and thermal properties of high performance concrete (HPC) with up to 60% of Portland cement replaced by fine-ground ceramics.
Abstract: This paper presents experimental work regarding the basic physical characteristics, mechanical and fracture-mechanics properties, durability characteristics, hydric and thermal properties of high performance concrete (HPC) with up to 60% of Portland cement replaced by fine-ground ceramics. Experimental results show that the amount of the ceramics in the mix is limited mainly by the resistance against de-icing salts which is found satisfactory only up to the cement replacement level of 10%. The mechanical and water transport properties are not significantly impaired by ceramic additions of up to 20%, whereas the effective fracture toughness, specific fracture energy, and chemical resistance (to MgCl2 ,N H 4Cl, Na2SO4, HCl) are effectively maintained up to 40%. The frost resistance, water vapor transport and storage parameters and thermal properties are not significantly impaired even up to a 60% replacement level. 2011 Elsevier Ltd. All rights reserved.
129 citations
TL;DR: In this paper, an extensive set of parameters of high performance concrete (HPC) with metakaolin including basic physical characteristics, mechanical and fracture-mechanical properties, durability characteristics, hydric and thermal properties and chloride binding characteristics is measured.
129 citations
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TL;DR: In this article, real experiences with active storage systems and passive storage systems are compiled, giving detailed information of advantages and disadvantages of each one and a summary of different technologies and materials used in solar power plants with thermal storage systems existing in the world.
Abstract: Power generation systems are attracting a lot of interest from researchers and companies. Storage is becoming a component with high importance to ensure system reliability and economic profitability. A few experiences of storage components have taken place until the moment in solar power plants, most of them as research initiatives. In this paper, real experiences with active storage systems and passive storage systems are compiled, giving detailed information of advantages and disadvantages of each one. Also, a summary of different technologies and materials used in solar power plants with thermal storage systems existing in the world is presented.
775 citations
TL;DR: In this article, the authors report recent advances in the knowledge base relevant to the durability of steel reinforced concrete in chloride environments, including: the role of mineral admixtures in concrete durability, the methods of measuring the chloride ingress into concrete, the challenges in assessing concrete durability from its chloride diffusivity, and the service life modeling of reinforced concrete.
643 citations
Book•
28 Oct 2002TL;DR: Porous Materials Water in Porous Materials Flow in porous materials Unsaturated Flows UnSaturated Flow in Building Physics Composite Materials Evaporation and Drying Topics in Water Transport Appendices Symbols Used Properties of Water Minerals, Salts and Solutions Other Liquids Other Data as mentioned in this paper
Abstract: Porous Materials Water in Porous Materials Flow in Porous Materials Unsaturated Flows Unsaturated Flow in Building Physics Composite Materials Evaporation and Drying Topics in Water Transport Appendices Symbols Used Properties of Water Minerals, Salts and Solutions Other Liquids Other Data
515 citations