The behavior of building materials in constructions of civil structures is influenced by the surrounding moisture and it is a crucial for intensively examined field of the construction physics. Most standard building ...The behavior of building materials in constructions of civil structures is influenced by the surrounding moisture and it is a crucial for intensively examined field of the construction physics. Most standard building materials are characterized by a porous structure, which results in the ability to receive water in a liquid as well as gaseous form in the inner pores. The water fills the storage space of pores under certain conditions; it is transported and transferred back to the surroundings. Many technical studies show that the moisture monitoring is prevailingly based on experiments. Previous calculating methods introduced, e.g., by Glaser, which became the basis for the standard calculations in many European countries in the 1960s, are not always sufficient with respect to the demands of the civil structures. The moisture influences thermo-insulating properties of the material. By a change of the thermo insulation properties of the construction also the thermal and diffusion scheme of the construction is changed and its thermal resistance is decreasing. Faults in the thermo-technical projects occur when thermal conductivity coefficient L values for material in a dry state are substituted.The aim of the research is to determine the capillary conductivity coefficient as a characteristic material moisture parameter of the building materials by the means of a non-destructive method using the experimentally assembled apparatus developed at the Department of Civil Engineering, Brno University of Technology. Keywords： Capillary conductivity coefficient, moisture transfer, EMWR （electromagnetic microwave radiation）, diffusion展开更多
The paper briefly retrospected the history of wood construction building in China, thenparticularly discussed the great significance, wood supply, safety problem and cost of woodconstruction building after recovery. F...The paper briefly retrospected the history of wood construction building in China, thenparticularly discussed the great significance, wood supply, safety problem and cost of woodconstruction building after recovery. Furthermore, some advice was put forward, and finally thedevelopment foreground was in prospect.展开更多
The current situation and opportunities of timber structural houses development in China wereintroduced and analyzed. There is a great potential market of timber structural housing in China. In the meantime, some prob...The current situation and opportunities of timber structural houses development in China wereintroduced and analyzed. There is a great potential market of timber structural housing in China. In the meantime, some problems about wooden housing should be paied more attention to and be solved in the future.展开更多
文摘The behavior of building materials in constructions of civil structures is influenced by the surrounding moisture and it is a crucial for intensively examined field of the construction physics. Most standard building materials are characterized by a porous structure, which results in the ability to receive water in a liquid as well as gaseous form in the inner pores. The water fills the storage space of pores under certain conditions; it is transported and transferred back to the surroundings. Many technical studies show that the moisture monitoring is prevailingly based on experiments. Previous calculating methods introduced, e.g., by Glaser, which became the basis for the standard calculations in many European countries in the 1960s, are not always sufficient with respect to the demands of the civil structures. The moisture influences thermo-insulating properties of the material. By a change of the thermo insulation properties of the construction also the thermal and diffusion scheme of the construction is changed and its thermal resistance is decreasing. Faults in the thermo-technical projects occur when thermal conductivity coefficient L values for material in a dry state are substituted.The aim of the research is to determine the capillary conductivity coefficient as a characteristic material moisture parameter of the building materials by the means of a non-destructive method using the experimentally assembled apparatus developed at the Department of Civil Engineering, Brno University of Technology. Keywords： Capillary conductivity coefficient, moisture transfer, EMWR （electromagnetic microwave radiation）, diffusion
文摘The paper briefly retrospected the history of wood construction building in China, thenparticularly discussed the great significance, wood supply, safety problem and cost of woodconstruction building after recovery. Furthermore, some advice was put forward, and finally thedevelopment foreground was in prospect.
文摘The current situation and opportunities of timber structural houses development in China wereintroduced and analyzed. There is a great potential market of timber structural housing in China. In the meantime, some problems about wooden housing should be paied more attention to and be solved in the future.
