Evacuated Load Bearing Thermal Insulation up to 800°C

2009 ◽  
pp. 243-243-13
Author(s):  
DJ Dickson
Keyword(s):  
Thermal Insulation ◽  
Load Bearing

scholarly journals Research and practices of large composite external wall panels for energy saving prefabricated buildings

2019 ◽  
Vol 289 ◽  
pp. 10012
Author(s):  
Yunxing Shi ◽  
Yangang Zhang ◽  
Kun Ni ◽  
Wei Liu ◽  
Ye Luo
Keyword(s):  
Production Process ◽  
Energy Saving ◽  
Thermal Insulation ◽  
Sandwich Panel ◽  
Composite Panel ◽  
Sandwich Composite ◽  
Composite Panels ◽  
Load Bearing ◽  
External Wall ◽  
Wall Panels

The production process and application of large composite external wall panels (composite panels for short) are introduced in this paper. Composite panels with both load bearing and thermal insulation were formed by pouring normal concrete (NC) and ceramsite foamed concrete (CFC) continuously according to particular technological requirements, which made two layers into a seamless whole. The layers of NC and CFC are for load bearing and thermal insulation respectively. The composite panels were manufactured in the scale of industrial production, and applied to several energy saving prefabricated buildings successively, instead of polystyrene sandwich composite panels (sandwich panel for short) as external wall panels. There are several obvious advantages of the composite panel over the sandwich panel or outer benzoic board. Firstly, it solved the problems of durability of polystyrene and the complex production process of the sandwich pane, the production process of the external wall was thus greatly simplified. In addition, the fire risk was much reduced.

Analysis of Energy-Saving Architecture with Self Thermal Insulation Structure of Fiber Reinforced Foamed Concrete

2011 ◽  
Vol 71-78 ◽  
pp. 444-446
Author(s):  
Li Guo Ma ◽  
Hong Wei Song
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Fiber Reinforced ◽  
Load Bearing ◽  
Building Technology ◽  
New Countryside Construction ◽  
Foamed Concrete ◽  
New Countryside ◽  
Save Energy ◽  
Bearing Structure

It has economical and social value to build energy-saving architectures. Foamed concrete is commonly used as non-load bearing structure to save energy of buildings. With reinforcement of fiber foamed concrete can be used as load bearing structure to build architectures. The load bearing structure of fiber reinforced foamed has ability of self thermal insulation to get the aim of energy-saving. In the paper the excellence and disadvantage of foamed concrete is summarized. Methods are given to build the energy-saving architecture with self thermal insulation structure of fiber reinforced foamed concrete in new formwork. The building technology will be applied in new countryside construction in China.

scholarly journals Pitched unventilated wood frame roof with smart vapour barrier – field measurements

2021 ◽  
Vol 2069 (1) ◽  
pp. 012007
Author(s):  
N S Bunkholt ◽  
L Gullbrekken ◽  
B Time ◽  
T Kvande
Keyword(s):  
Moisture Content ◽  
Thermal Insulation ◽  
Field Measurements ◽  
Office Building ◽  
Mould Growth ◽  
Laboratory Measurements ◽  
Cold Side ◽  
Load Bearing ◽  
Wood Frame ◽  
Bearing Structure

Abstract Unventilated wood-frame roofs may provide smaller roof thickness and less material use compared to conventional unventilated roofs with all the thermal insulation above the load bearing structure. Unventilated roofs are, however, normally built without wooden materials between the vapour barrier and roof membrane due to moisture safety. Field measurements on the pitched unventilated wood-frame roof of an office building in Norway is performed to demonstrate and document the performance of this type of roof construction. Through monitoring of moisture and temperature, the study aims to contribute to verification of simulations and laboratory measurements showing that unventilated wood-frame roofs may be built with wooden materials if a smart vapour barrier is used. The results show moisture levels below 15 weight-% on the warm side of the rafters throughout the first 15 months of measurements. On the cold side of the rafters, the moisture content increased during winter due to built-in moisture in the construction and reached levels close to 25 weight-%. The moisture content decreased to around 15 weight-% when summer arrived, which shows an expected redistribution of moisture and indicates possible drying of the construction. The measurements underline the importance of limiting built-in moisture to reduce the risk of mould growth, but the study also implies that for some given premises an unventilated pitched wood-frame roof may have acceptable moisture risk.

Construction Technique of Cast In Situ RC Grillage Shear Wall Building Formed with Thermal Insulation Hollow Blocks

2014 ◽  
Vol 919-921 ◽  
pp. 39-44 ◽  
Author(s):  
Wei Jing Zhang ◽  
Qian Zhang ◽  
Pei Ru Fu
Keyword(s):  
Reinforced Concrete ◽  
Thermal Insulation ◽  
Shear Wall ◽  
Structural System ◽  
Construction Technique ◽  
Load Bearing ◽  
Key Technology ◽  
New Type ◽  
Wall System

The cast-in-situ reinforced concrete grillage shear wall system with non-dismantling formwork is a new type of structural system characterized by load-bearing and thermal insulation, and the research on the construction technique is crucial to its promotion and application. Combined with the pilot building, the key technology and construction measures are introduced in this paper, which can provide reference for the related projects in future.

scholarly journals Optimization and Re-Design of Integrated Thermal Protection Systems Considering Thermo-Mechanical Performance

2021 ◽  
Vol 11 (15) ◽  
pp. 6916
Author(s):  
Qiuyi Xu ◽  
Shu Li ◽  
Yang Meng
Keyword(s):  
Thermal Insulation ◽  
Mechanical Performance ◽  
Thermal Protection ◽  
Elastic Strain Energy ◽  
Topological Optimization ◽  
Bottom Surface ◽  
Optimized Design ◽  
Buckling Mode ◽  
Load Bearing ◽  
Integrated Thermal Protection System

Integrated thermal protection system (ITPS) is regarded as one of the most promising thermal protection concepts with both thermal insulation and load-bearing capacities. However, the traditional layout of webs could inevitably lead to thermal short effects and high risk of buckling failure of the ITPS. A topological optimization method for the unit cell of the ITPS was established to minimize the equivalent thermal conductivity and elastic strain energy with the constraint of maintaining structural efficiency. The ITPS was re-designed consulting the optimized cell configuration. In order to control the buckling-mode shape and the associated buckling load of the ITPS, the new design was further optimized, subjected to the total weight of the initial design. Detailed finite element models were established to validate the structural responses. By contrast, the optimized design presents lower bottom surface temperature and better thermal buckling characteristics, performing a better balance between thermal insulation and load-bearing constraints.

Development of Load-Bearing Thermal Insulation Recycled Concrete Block and Research on its Thermal Performance

2014 ◽  
Vol 1004-1005 ◽  
pp. 1503-1507 ◽  
Author(s):  
Xi Xi He ◽  
Xing Ming Liang
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Thermal Insulation ◽  
Thermal Performance ◽  
Recycled Concrete ◽  
Recycled Aggregate ◽  
Masonry Walls ◽  
Insulation Material ◽  
Load Bearing

A new kind of 310mm thick load-bearing thermal insulation block utilizing construction waste as coarse aggregate was developed and produced. Internal thermal bridge is reduced by special design of holes pattern and cut off by mal-posed thermal insulation layer arrangement. By testing heat transfer coefficient of four kinds of masonry walls, different aggregate type, masonry unit type and insulation material which affect thermal performance of masonry were studied. Results show that heat transfer coefficient of walls with recycled aggregates is lower than that with natural aggregates under the same condition. By filling thermal insulation material in block holes, heat transfer coefficient is dramatically lowered. Among four types of masonry walls, heat transfer coefficient of 310mm thick load-bearing block wall with recycled aggregate is the lowest, and its thermal insulation performance is the best.

Load-Bearing in the Ovine Medial Tibial Condyle: Effect of Meniscectomy

1993 ◽  
Vol 06 (02) ◽  
pp. 100-104 ◽  
Author(s):  
D. M. Pickles ◽  
C. R. Bellenger
Keyword(s):  
Knee Joint ◽  
Contact Area ◽  
Mammalian Species ◽  
Total Removal ◽  
Load Bearing ◽  
Human Knee ◽  
Biochemical Effects ◽  
Pressure Sensitive ◽  
Medial Meniscectomy ◽  
Tibial Condyle

SummaryTotal removal of a knee joint meniscus is followed by osteoarthritis in many mammalian species. Altered load-bearing has been observed in the human knee following meniscectomy but less is known about biochemical effects of meniscectomy in other species. Using pressure sensitive paper in sheep knee (stifle) joints it was found that, for comparable loads, the load-bearing area on the medial tibial condyle was significantly reduced following medial meniscectomy. Also, for loads of between 50 N and 500 N applied to the whole joint, the slope of the regression of contact area against load was much smaller. Following medial meniscectomy, the ability to increase contact area as load increased was markedly reduced.The load bearing area on the medial tibial condyle was reduced following meniscectomy.

Calculation of tension in the three-layer pipe with viscoelastic thermal insulation

2019 ◽  
Vol 5 (3) ◽  
pp. 69-78
Author(s):  
V. V. Mozharovsky ◽  
◽  
D. S. Kuzmenkov ◽  
E. A. Golubeva ◽  
◽  
...  
Keyword(s):  
Thermal Insulation
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