Densification characteristics of chromia/alumina castables
· The effect of nano-size additives on the electrical conductivity of matrix suspension and properties of self-flowing low-cement high alumina refractory castables. Ceramics International. 2010 36 1411–1416. doi 10.1016/j.ceramint.2010.02.008.
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Low Cement High Alumina Castables Effect of
· Low Cement High Alumina Castables Effect of Distribution Coefficients 14 P a g e and ultralow cement castables (ULCC s) have grown significantly over the last decade. This is due to the CaO present in the cement which leads to decline in the high-temperature properties.
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Direct observation of the moisture distribution in calcium
· The drying behavior for various calcium aluminate cement and hydratable alumina-bonded refractory castables was investigated in the first-drying temperature range (100°C-300°C). Using a
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The Effect of Nano-Alumina Particles Generated in Situ in
Advanced high alumina refractory castables of ultra-low and to cement types are well-known because of their ability on developing similar and/or superior thermal and mechanical properties. Following the recent trend of including nanoparticles in refractory castables in this work it is presented a novel way to obtain the benefit effects on the thermal and mechanical properties promoted by
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1 STUDIES ON FLOW BEHAVIOUR OF LOW CEMENT
· temperature is high and the castable is under thermo-mechanical stress it is suggested to select reactive alumina having negligible amount of alkalies while designing silica-free low cement casta-ble for some special applications. To get dense matrix either in low cement or ultra-low cement castables addition of casting water is very important.
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Effect of Deflocculants on High Alumina Low Cement
Effect of Deflocculants on High Alumina Low Cement
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The Value of Additives in Refractory Castables Castables
· The matrix of low cement castables contains fine and ultra-fine particles such as calcium aluminate cement reactive alumi- Effect Retarding Strong retarding Accelerating Chemical Composition Al 2O 3 80 76 80 Na 2O 0.10 0.10 0.10 B 2O the mixes using dispersing alumina show the high-est CCS and CMoR. VIB 4 PA with its additive being
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Low Cement High Alumina CastableRS High Alumina
Low Cement High Alumina Castable is used in industrial furnaces such as metallurgy petroleum and petrochemicals electric power and building materials. A large part replaced the refractory bricks. The specific application parts on the cement kiln are as follows RS-16T RS-16 and RS-15B (GJ-15B) can be used at the KIln Hood Cooler etc.
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1 STUDIES ON FLOW BEHAVIOUR OF LOW CEMENT
· temperature is high and the castable is under thermo-mechanical stress it is suggested to select reactive alumina having negligible amount of alkalies while designing silica-free low cement casta-ble for some special applications. To get dense matrix either in low cement or ultra-low cement castables addition of casting water is very important.
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Effect of CaO Content on the Hot Strength of Alumina
· The modulus of rupture of Al 2 O 3-spinel castables containing 20 wt Al 2 O 3-rich MgO-Al 2 O 3 spinel and 1.36-2.04 wt CaO generally increases with an increase in both CaO content and temperature from 1300° to 1500°C but it remains virtually constant from 1000° to 1300°C. Microscopic observation of the castable fired at 1500°C for 3 h reveals the growth of some CA 6 crystals out of
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Study on the Effect of Deflocculant Variation in High
The effect of three different types of deflocculants and their amounts on high-alumina low-cement castables is studied. Castable formulations were done as per continuous particle size distribution of a Dinger-Funk model using a distribution coefficient of q = 0.21.
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Effect of CaO Content on the Hot Strength of Alumina
· The modulus of rupture of Al 2 O 3-spinel castables containing 20 wt Al 2 O 3-rich MgO-Al 2 O 3 spinel and 1.36-2.04 wt CaO generally increases with an increase in both CaO content and temperature from 1300° to 1500°C but it remains virtually constant from 1000° to 1300°C. Microscopic observation of the castable fired at 1500°C for 3 h reveals the growth of some CA 6 crystals out of
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Low Cement High Alumina CastableRS High Alumina
Low Cement High Alumina Castable is used in industrial furnaces such as metallurgy petroleum and petrochemicals electric power and building materials. A large part replaced the refractory bricks. The specific application parts on the cement kiln are as follows RS-16T RS-16 and RS-15B (GJ-15B) can be used at the KIln Hood Cooler etc.
Get Price
1 STUDIES ON FLOW BEHAVIOUR OF LOW CEMENT
· temperature is high and the castable is under thermo-mechanical stress it is suggested to select reactive alumina having negligible amount of alkalies while designing silica-free low cement casta-ble for some special applications. To get dense matrix either in low cement or ultra-low cement castables addition of casting water is very important.
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Direct observation of the moisture distribution in calcium
· The drying behavior for various calcium aluminate cement and hydratable alumina-bonded refractory castables was investigated in the first-drying temperature range (100°C-300°C). Using a
Get PriceDesigning of low cement castables in Al2O3SiO2SiC
· Designing of low cement castables in Al 2O 3SiO 2SiC system having alkali and thermal spalling resistance distribution gives very good abrasion resistance. On the other hand very strong matrix has adverse effect Calcined alumina b b b b High alumina cement
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High Alumina Castables Effect of Alumina Sols and
· Two different alumina sols were prepared using different precursor sources and the sols were solely used as binder in no cement high alumina castable. The sols were characterized for their solid co
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High Alumina Castables Effect of Alumina Sols and
· (2015). High Alumina Castables Effect of Alumina Sols and Distribution Coefficients. Transactions of the Indian Ceramic Society Vol. 74 No. 4 pp. .
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Designing of low cement castables in Al2O3SiO2SiC
· Designing of low cement castables in Al 2O 3SiO 2SiC system having alkali and thermal spalling resistance distribution gives very good abrasion resistance. On the other hand very strong matrix has adverse effect Calcined alumina b b b b High alumina cement
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Silica Sol Bonded High Alumina Castable Effect of Reduced Sol
· Silica Sol Bonded High Alumina Castable Effect of Reduced Sol. Sarada Prasanna Das 1 Birendra Prasad 1 Ritwik Sarkar 2 Arun Kumar 2. 1 OCL Refractory Ltd. Rajgangpur Odisha770017/India 2 National Institute of Technology Rourkela Odisha769008/India. Revision . Volume 7 Issue 2 Pages 8387. Abstract. Effect of reduction in sol content in no cement high alumina castable
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· 4.8 High Alumina Castable with traditional cement and silica sol for comparative study 68 4.9 List of equipment used to carry out the experiments 71 C hapter 5 R esults and D iscussion 73 5.1 Alumina sol bonded high alumina castable composition 75 5.1.1 Sol-gel characterization 75
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Physical and mechanical properties of low ultralow and
The introduction of MgO nanoparticles developed in situ in the matrix of high-alumina low cement ultra-low and no cement refractory castables was made by means of a low viscosity containing aqueous polymeric resin produced by the Pechini method. The addition of the liquid resin to the castables played two roles first to serve as a supplier
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1 STUDIES ON FLOW BEHAVIOUR OF LOW CEMENT
· temperature is high and the castable is under thermo-mechanical stress it is suggested to select reactive alumina having negligible amount of alkalies while designing silica-free low cement casta-ble for some special applications. To get dense matrix either in low cement or ultra-low cement castables addition of casting water is very important.
Get Price
Effect of CaO Content on the Hot Strength of Alumina
· The modulus of rupture of Al 2 O 3-spinel castables containing 20 wt Al 2 O 3-rich MgO-Al 2 O 3 spinel and 1.36-2.04 wt CaO generally increases with an increase in both CaO content and temperature from 1300° to 1500°C but it remains virtually constant from 1000° to 1300°C. Microscopic observation of the castable fired at 1500°C for 3 h reveals the growth of some CA 6 crystals out of
Get PriceRheology of High Performance Alumina and Spinel
· castables with special focus on high perform-ance alumina and spinel castables. 2 Rheology of suspensions 2.1 Impact of solid content particle size and particle size distribution Refractory castables are composite materials with aggregates matrix fines cement and wa-ter as the main components. They can be con-sidered as concentrated
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Effect of different high alumina cements on the properties
· The binding phase in cement bonded castables is high alumina cement .High alumina cement consists of mainly the phases CA CA2 and C12A7. Out of these phases C12A7 phase sets the most quickly and CA2 takes the most time to set. The greater the amount of calcia in a phase the more quick setting that phase will be due to the property of calcia to
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Designing of low cement castables in Al2O3SiO2SiC
· Designing of low cement castables in Al 2O 3SiO 2SiC system having alkali and thermal spalling resistance distribution gives very good abrasion resistance. On the other hand very strong matrix has adverse effect Calcined alumina b b b b High alumina cement
Get PriceDirect observation of the moisture distribution in calcium
· The drying behavior for various calcium aluminate cement and hydratable alumina-bonded refractory castables was investigated in the first-drying temperature range (100°C-300°C). Using a
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Rheology of High Performance Alumina and Spinel
· castables with special focus on high perform-ance alumina and spinel castables. 2 Rheology of suspensions 2.1 Impact of solid content particle size and particle size distribution Refractory castables are composite materials with aggregates matrix fines cement and wa-ter as the main components. They can be con-sidered as concentrated
Get PricePhysical and mechanical properties of low ultralow and
The introduction of MgO nanoparticles developed in situ in the matrix of high-alumina low cement ultra-low and no cement refractory castables was made by means of a low viscosity containing aqueous polymeric resin produced by the Pechini method. The addition of the liquid resin to the castables played two roles first to serve as a supplier
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