Analysis of the Temperature Field and Deformation Characteristics of Foam Glass Thermal Insulating Decorative Integrated Board System

2021 ◽  
Author(s):  
Houren Xiong ◽  
Bin Sha ◽  
Houren Xiong ◽  
Zheng Hao ◽  
kelong Yuan ◽  
...  
Keyword(s):  
Temperature Field ◽  
Foam Glass ◽  
Deformation Characteristics ◽  
Thermal Insulating ◽  
Board System

scholarly journals Evaluation of Physical Properties of a Metakaolin-Based Alkali-Activated Binder Containing Waste Foam Glass

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5458
Author(s):  
Petra Mácová ◽  
Konstantinos Sotiriadis ◽  
Zuzana Slížková ◽  
Petr Šašek ◽  
Michal Řehoř ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Physical Properties ◽  
Foam Glass ◽  
Glass Production ◽  
Alkali Activation ◽  
Activation Process ◽  
X Ray ◽  
Thermal Insulating ◽  
The Matrix ◽  
Alkali Activated

Foam glass production process redounds to large quantities of waste that, if not recycled, are stockpiled in the environment. In this work, increasing amounts of waste foam glass were used to produce metakaolin-based alkali-activated composites. Phase composition and morphology were investigated by means of X-ray powder diffraction, Fourier-transform infrared spectroscopy and scanning electron microscopy. Subsequently, the physical properties of the materials (density, porosity, thermal conductivity and mechanical strength) were determined. The analysis showed that waste foam glass functioned as an aggregate, introducing irregular voids in the matrix. The obtained composites were largely porous (>45%), with a thermal conductivity coefficient similar to that of timber (<0.2 W/m∙K). Optimum compressive strength was achieved for 10% incorporation of the waste by weight in the binder. The resulting mechanical properties suggest the suitability of the produced materials for use in thermal insulating applications where high load-bearing capacities are not required. Mechanical or chemical treatment of the waste is recommended for further exploitation of its potential in participating in the alkali activation process.

Development of Resource-Saving Cellular Glass Technology and Materials Based on it

2016 ◽  
Vol 870 ◽  
pp. 175-180 ◽  
Author(s):  
E.A. Yatsenko ◽  
V.A. Smolii ◽  
B.M. Goltsman
Keyword(s):  
Power Plant ◽  
Bending Strength ◽  
Lightweight Concrete ◽  
Foam Glass ◽  
Thermal Power ◽  
Thermal Insulating ◽  
Cellular Glass ◽  
Power Plant Ash ◽  
Slag Waste ◽  
Plant Ash

The advantages and drawbacks of a modern thermal insulating material – cellular glass (foam glass) – and the use of manmade waste (in particular, thermal power plant ash-slag waste) in its synthesis were described. The results of studies into the development of composites and temperature-time synthesis modes of effective energy-saving cellular glass and materials based on it were shown, including the experimental samples of insulating boards and blocks with density of not more than 500 kg/m3; experimental samples of porous granules for lightweight concrete and thermal insulating fillers with density of not more than 250 kg/m3 –. Technology of cellular glass using the Novocherkassk State District Power Plant ash-slag waste was described. The developed technological solutions allow setting physical and mechanical properties of materials based on cellular glass (density, porosity, thermal conductivity, compressive and bending strength) by varying the amount of ash-slag waste in its composition.

MAGNESIUM OXYCHLORIDE CEMENT-BASED COMPOSITE WITH FOAM GLASS USED AS LIGHTWEIGHT ADMIXTURE

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Adam Pivák ◽  
Šimon Marušiak ◽  
Martina Záleská ◽  
Zbyšek Pavlík ◽  
Milena Pavlíková
Keyword(s):  
Raw Materials ◽  
Foam Glass ◽  
High Strength ◽  
Mineral Admixture ◽  
Basic Material ◽  
Thermal Insulating ◽  
Magnesium Oxychloride ◽  
Magnesium Oxychloride Cement ◽  
Whole Life Cycle ◽  
Oxychloride Cement

In this paper, foam glass was used as an aggregate in magnesium oxychloride cement (MOC)-based mixtures. Magnesium oxychloride cement is known as a non-hydraulic, high-strength, and fire-resistant binder that can bond large amounts of miscellaneous fillers. In comparison with Portland cement, MOC has a lower environmental impact over its whole life cycle. The purpose of this paper is to modify thermal and hygric properties of MOC-based composites using lightweight mineral admixture, namely foam glass, and hydrophobic agents. The raw materials were analyzed by XRF spectroscopy and their basic properties characterized. The MOC composites were by their basic material, mechanical, thermophysical, and moisture properties described. Considerable improvement of thermal parameters of MOC composite modified with the foam glass and obvious action of surface hydrophobic agent as moisture barrier were observed. The resulting thermal-insulating, lightweight MOC composite with suitable mechanical properties can be used in the construction of thermal insulation surfaces and envelopes, ceiling or wall panels, reducing the energy consumption of buildings.

A New Energy Saving Roofing Insulation Board System of Polyphenylene Foam Concrete

2012 ◽  
Vol 531-532 ◽  
pp. 421-424
Author(s):  
Dong Zhou Xia
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Foam Glass ◽  
Expanded Polystyrene ◽  
Glass Block ◽  
Engineering Practice ◽  
Foam Concrete ◽  
Insulation Materials ◽  
New Energy ◽  
Board System

In engineering practice, the most widely used roof insulation materials are expanded perlite, expanded vermiculite, extruded polystyrene board (XPS), expanded polystyrene board (EPS), foam glass block，rigid polyurethane foam insulation layer, and so on. These products have many advantages, such as light weight, high compressive strength, good integral property, convenient construction. But there are a lot of defects at the same time, such as bad fireproof performance and durability, environmental pollution, and so on. So we need an efficient roofing insulation materials to meet the growing needs of the roofing energy saving, energy saving roofing insulation board system of polyphenylene foam concrete just meet this demand, it has the characteristics of thermal insulation, lightweight and compressive resistance, waterproof and moistureproof, fire durable, and simple structure. Through the application of this new materials in practical engineering, the energy saving roofing insulation board will provide an efficient and practical material for future roof thermal insulation and energy saving.

scholarly journals Nature Conservation Technology for Producing Slag-Foam Glass as a Structural and Thermal Insulating Material

2018 ◽  
Vol 41 ◽  
pp. 02017 ◽  
Author(s):  
Natalia Gilyazidinova ◽  
Nadezhda Rudkovskaya ◽  
Tatiana Santalova
Keyword(s):  
Foam Glass ◽  
Glass Production ◽  
Average Density ◽  
Liquid Sodium ◽  
Insulation Material ◽  
Thermal Insulating ◽  
Soluble Glass ◽  
Ferroalloy Plant ◽  
Conservation Technology ◽  
Sodium Glass

The purpose of the research is to determine the starting material composition, the conditions for its heat treatment and operation, and also the development of the recommendations on the technology of manufacturing and use of slag-foam glass as a structural and thermal insulation material for low-rise construction. Research and development of the composition and technology of ferrosilicate dust - a secondary product of the Novokuznetsk ferroalloy plant and Kemerovo chemical enterprises - slag-foam glass production, were carried out taking intoaccount the need for recycling of waste generated during the production process. The liquid sodium glass production waste is a mixture offerrosilicate dust that is not completely exhausted in the reactors and anaqueous Na2OSiO2 solution. Its density varies from 1.2 g/cm3 to 1.5 g/cm3, and the binding properties are extremely unstable, they depend on the soluble glass and water ratio in the waste. The use of this material as the basis for the production of structural and thermal insulating slag-foamglass with the stable strength index, the average density and the long-term durability is quite relevant.

Three-Dimensional Numerical Computation for Temperature Field and Insulator of Cold Regions Tunnel

2012 ◽  
Vol 503-504 ◽  
pp. 132-135
Author(s):  
Jin Xing Lai ◽  
Chi Liu ◽  
Guang Long Zhang
Keyword(s):  
Temperature Field ◽  
Three Dimensional ◽  
Longitudinal Direction ◽  
Transient Temperature ◽  
Burial Depth ◽  
Cold Region ◽  
Insulating Layer ◽  
Thermal Insulating ◽  
Longitudinal Length ◽  
Three Dimensional Finite Element

With heat conduction differential equation of the transient temperature field, Galerkin method is adopted to deduce the three-dimensional finite element formula; based on the test result of temperature field, the actual temperature of the environment inside the tunnel shall be exerted on surface of the second lining concrete as load, thus establish the three dimensional computation model of the temperature field of tunnel in cold region. Next, on basis of the model, numerical analysis on cross section of burial depth and longitudinal direction of tunnel in cold region with and without thermal insulating layer, so as to provide theoretical basis for thickness and longitudinal length of thermal insulating layer laid in tunnel of cold region.

Monitoring and Analysis on Temperature for External Foam Glass Thermal Insulating System on Walls under Weathering Test

2011 ◽  
Vol 71-78 ◽  
pp. 3918-3924
Author(s):  
Zhi Rong Niu ◽  
Hou Ren Xiong ◽  
Zong Min Yu ◽  
Yi Xiang ◽  
Yi Ying Luo
Keyword(s):  
Thermal Insulation ◽  
Foam Glass ◽  
Interface Layer ◽  
Green Energy ◽  
Good Prospect ◽  
Insulation Layer ◽  
Thermal Insulating ◽  
Glass Insulation ◽  
Building Wall ◽  
Insulation Wall

The external foam glass thermal insulating system on walls has become a new thermal insulation wall system in china's building wall, It is green energy - saving building wall product with good prospect and used for wall thermal insulation of building. In this paper, real-time monitoring with thermal sensor and analysis on temperature for external foam glass thermal insulating system on walls by weathering test in Jiaxing area, and study on temperature distribution for each layer of walls. The experiment showed that, the external foam glass thermal insulating system on walls caused by foam glass insulation layer of adiabatic effect, Interface layer and thermal insulation layer of temperature difference between change significantly, existing 50 °C, which can cause greater temperature stress, and have certain effect of durability for external foam glass thermal insulating system on walls.

Thermal Insulating System Design for the Wellhead of the Snubbing Service Equipment

2011 ◽  
Vol 71-78 ◽  
pp. 2235-2238
Author(s):  
Chuan Ma ◽  
Li Jun Liu ◽  
Zhong Hua Dai ◽  
Xiao Yan Liu
Keyword(s):  
Temperature Field ◽  
System Design ◽  
Temperature Rise ◽  
Mathematic Model ◽  
Material Object ◽  
Transient Temperature ◽  
Rapid Rate ◽  
Unsteady State ◽  
Thermal Insulating ◽  
Transient Temperature Field

The unsteady state mathematic model was utilized to compute the transient temperature field and determine the heating power, and then a set of thermal insulating system for the wellhead of the snubbing service equipment was designed and manufactured based on the mapping of the material object. The result shows that the numerical results of the cartridge heater’s temperature field agree with the testing values. The thermal insulating system for the wellhead of the snubbing service equipment meets the needs of the snubbing service in the winter; the system possesses the merits of rapid rate of temperature rise, well thermal insulating, safety and convenience.

scholarly journals Microwave Heat Treatment to Manufacture Foam Glass Gravel

2021 ◽  
Vol 2 (1) ◽  
pp. 20-28
Author(s):  
Lucian Paunescu
Keyword(s):  
Thermal Conductivity ◽  
Heat Treatment ◽  
Foam Glass ◽  
Specific Energy Consumption ◽  
Sodium Borate ◽  
Water Addition ◽  
Glass Waste ◽  
Recycled Glass ◽  
Thermal Insulating ◽  
Microwave Heat

Abstract                                                         The paper aimed at the experimental manufacture of a foam glass gravel type by sintering at over 900 ºC a powder mixture composed of recycled glass waste (92%), sodium borate (6%), kaolin (0.3%), silicon carbide (1.7%) and water addition (12%). The originality of the work was the application of the unconventional technique of microwave heating through a predominantly direct heating procedure. The product foamed at 908 ºC had a very fine porous structure (pore size between 0.05-0.20 mm) and a compressive strength above the usual level of foam glass gravels (7.8 MPa). The apparent density of 0.28 g/cm3 corresponding to a bulk density of 0.20 g/cm3 and the thermal conductivity of 0.075 W/m·K ensures the thermal insulating character of the material required for use in the specific field of applications of foam glass gravel. The manufacturing process had an excellent energy efficiency, the specific energy consumption decreasing up to 0.70 kWh/kg.

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