Preparation and Properties Investigation of Active High Temperature Resistant Insulation Material

2013 ◽  
Vol 641-642 ◽  
pp. 469-472
Author(s):  
Wen Long Tang ◽  
Chun Rong Tian ◽  
Xiao Rong Jia ◽  
Gui Sheng Chen

The active high temperature resistant insulation material is devised to fulfill the specified requirements of the packing material. The complex material K2O.6TiO2 whisker/expanded perlite/resol was prepared in 20mm thickness, its back temperature was stable below 180°C in fire test with its front surface burned by the fire at 950°C—1050°C, but its compressive strength was 4.22MPa and its impact strength was just 0.43 kj/m2 Whereas the back temperature of the complex material Al2(SiO3)3 fiber/resol was stable below 140°C under the same test condition and its density and physical strength can be control. the compressive strength of the complex material Al2(SiO3)3 fiber/resol was between 5.0MPa and 30.0MPa versus the density between 0.75g/cm3 and 1.05g/cm3 while its impact strength was hardly influenced by the density. The thermal coefficient of the material through the fire test became lower. The analysis of its structure and thermal behavior show the complex material prepared possesses the function of active high temperature resistant insulation.

2020 ◽  
Vol 1009 ◽  
pp. 31-36
Author(s):  
Kanokwan Kanyalert ◽  
Prinya Chindaprasirt ◽  
Duangkanok Tanangteerapong

This work aims to reveal the effects of zeolite on properties of fly ash based geopolymer under high temperature at 300 °C, 600 °C and 900 °C. The specimens were prepared by alkali activation of fly ash, which was partially replaced by two different types of zeolite at 10%, 20% and 30% by weight. The specimens were analyzed for the maximum compressive strength, weight loss percentage, XRD and SEM. The results highlighted that the percentage of weight loss increased with the ratio of zeolite replacement. The compressive strength of geopolymer with synthetic zeolite and natural zeolite at 7, 28, 60 days were similar. The high-temperature exposure resulted in the reduction in compressive strength in all proportions. At the same temperature, compressive strength of all specimens were not significantly different.


Alloy Digest ◽  
1975 ◽  
Vol 24 (6) ◽  

Abstract COLMONOY NO. 52SA comprises a nickel-base alloy recommended for hard surfacing parts to resist wear, corrosion, heat and galling. Deposits, which have only moderate hardness (Rockwell C 45-50), may be machined with carbide tooling. Also, deposits have fairly good ductility and impact strength. Colmonoy No. 52SA is supplied as an atomized powder for application with Wall Colmonoy's SPRAYWELD Process. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, machining, joining, and powder metal forms. Filing Code: Ni-218. Producer or source: Wall Colmonoy Corporation.


1997 ◽  
Vol 15 (6) ◽  
pp. 488-504 ◽  
Author(s):  
Joseph H. Koo ◽  
Peter S. Ng ◽  
Fan-Bill Cheung

The effect of high temperature additives in intumescent systems was examined in a laboratory environment. A matrix of ceramic fibers/minerals was incorporated into two intumescent systems. The material performance was determined using a series of small-scale propane-fired furnace tests based on the ASTM E119 time-temperature curve for fire tests of building construction and materials. Several formulations were identified using a 15-minute screening fire test before testing for a longer time period.


2021 ◽  
Vol 2 (3) ◽  
pp. 1-9
Author(s):  
Lucian Paunescu ◽  
Sorin Mircea Axinte ◽  
Bogdan Valentin Paunescu

Abstract                                                         An innovation cold manufacturing method of glass foams is presented in the paper. Traditional foaming agents used in conventional expansion processes of glass waste at high temperature were substituted with aluminium powder in aqueous solution of calcium hydroxide, which releases hydrogen forming gas bubbles in the viscous sludge and then, by solidification, a porous structure typical for the glass foam. The manufactured foam is adequate for using as a thermal insulation material for inner wall of buildings, having the apparent density of 0.31 g·cm-3, the thermal conductivity of 0.070 W/m·K and the compressive strength of 1.32 MPa. The process originality is the use of recycled aluminum waste, melted by an own microwave heating technique and sprayed with nitrogen jets. The process effectiveness is remarkable in economical and energy terms.


Materials ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 3484 ◽  
Author(s):  
Li ◽  
Tsai ◽  
Yang

In this paper, a strengthening method for the damaged high-temperature steel pipeline using inorganic insulation material which was confined by carbon fiber reinforcement plastic (CFRP) composite materials was proposed. Two inorganic insulation materials were composed of magnesium phosphate cement (MPC) mixing with perlite and vermiculite powders, respectively. The influences of insulation material composites with various ratios of the perlite or vermiculite powder were discussed, in terms of compressive strength and thermal conductivity coefficients of inorganic insulation materials. The insulation materials confined by carbon fiber reinforced polymer jackets for enhancing the mechanical behavior were also investigated. From the experimental results, the main finding of the work was that the inorganic insulation materials added to the perlite powder represented greater insulation capability than added vermiculite ones under the condition of the same compressive strength. Different ratios of perlite inorganic insulation material cylinders with the dimension of ϕ 10 cm × 20 cm were confined by one layer and two layers of CFRP composite material. The compressive strength of the specimens increased by 258%–927% after using 1-layer CFRP composite material and increased by 480%–1541% after applying 2-layer CFRP composite material. A peak strength prediction model of insulation materials confined by CFRP was proposed, and it was found that the proposed model accurately predicted the peak strength of the inorganic insulation material cylinder. Finally, a verification test of the strengthening method for damaged high-temperature pipeline was performed to prove that the proposed strengthening method is feasible.


Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5230
Author(s):  
Konrad A. Sodol ◽  
Łukasz Kaczmarek ◽  
Jacek Szer

This paper presents the research data of the fire-temperature influence on Portland CEM I (OPC) and calcium sulfoaluminate (CSA) types of cement blend composites as cooling materials dedicated for infill and covers in fire systems. The data present the material responses for four types at high-temperature elevation times (0, 15, 30, 60 min), such as core heat curves, differences in specimens color, flexural and compressive strength parameters. Materials were tested using the DSC method to collect information about enthalpies. The differences between cement blend composites were compared with commonly used cooling materials such as gypsum blends. It is shown that modifications to Portland cement composites by calcium sulfoaluminate cement have a significant influence on the cooling performance during high-temperature, even for 60 min of exposure. The temperature increase rates in the material core were slower in composites with regards to additionally containing calcium sulfoaluminate in 100–150 °C range. After 60 min of high-temperature elevation, the highest flexural and compressive strength was 75% OPC/25% CSA cement composition. The influence on cooling properties was not related to strength properties. The presented solution may have a significant influence as a passive extinguisher solution of future fire resistance systems in civil engineering.


Alloy Digest ◽  
1954 ◽  
Vol 3 (8) ◽  

Abstract Federaloy F-1 is a copper tin-zinc bearing bronze whose strength suits it for applications where loads are heavy. It should be used only where lubrication is exceptionally good or motion is of a rocking nature. It is also a good gear bronze. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness, creep, and deformation. It also includes information on high temperature performance and corrosion resistance as well as casting, machining, and joining. Filing Code: Cu-19. Producer or source: Federal-Mogul Corporation.


Alloy Digest ◽  
1994 ◽  
Vol 43 (10) ◽  

Abstract Duralcan F3S.xxS is a heat treatable aluminum alloy-matrix gravity composite. The base alloy is similar to Aluminum 359 (Alloy Digest Al-188, July 1969); the discontinuously reinforced composite is silicon carbide. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness and fatigue. It also includes information on high temperature performance. Filing Code: AL-329. Producer or source: Alcan Aluminum Corporation.


Alloy Digest ◽  
1952 ◽  
Vol 1 (2) ◽  

Abstract Flylite ZRE-1 is a creep resistant magnesium-base alloy primarily designed for jet engine components and other high temperature applications. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as creep. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Mg-2. Producer or source: Howard Foundry Company.


Alloy Digest ◽  
1977 ◽  
Vol 26 (4) ◽  

Abstract STOODY 4 is a cobalt-chromium-tungsten alloy with excellent high-temperature strength and excellent resistance to corrosion. This alloy derives its high-temperature strength from the high tungsten-to-carbon ratio which allows a large percentage of tungsten to remain in solid solution. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength. It also includes information on high temperature performance and corrosion resistance as well as heat treating, machining, and joining. Filing Code: Co-75. Producer or source: WRAP Division, Stoody Company.


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