جرم های ریختنی کم سیمان (LCC)
به واسطه نیاز به جرم های نسوز با کیفیت برتر تلاش برای بهبود عملکرد جرم های دیرگداز ریختنی با کاهش مقدار آب و سیمان صورت گرفت. جرم های ریختنی معمولی به چند دلیل مناسب نبودند:
1- به دلیل نیاز به اب بیشتر به خاطر حضور سیمان بالا، تخلخل افزایش و بالتبع آن دانسیته افت پیدا می‌کند.
2- افزایش سیمان در ترکیب سبب ایجاد فازهای نقطه ذوب پایین و کاهش دیرگدازی می‌شود.
3- دهیدراته شدن سیمان در دماهای پایین کاهش استحکام را در پی داشته و نتیجه ان افزایش تخلخل و کاهش دانسیته تا قبل از ایجاد باندهای سرامیکی می‌شود.
توسعه در این زمینه با استفاده از پودرهای ریزدانه از گروه‌های رس، کائولن، سیلیس میکرونیزه، الومینای میکرونیزه، منیزیای میکرونیزه و … با پر کردن فواصل بین ذرات سیمان و اگریگیت و افزایش فشردگی و تراکم انجام شد. برخلاف دیرگدازهای معمولی که فواصل بین ذرات با آب پر میشوند، در این جرمها ذرات خیلی ریز فواصل بین ذره‌ای را پر کرده و به همین دلیل به عنوان مواد پرکننده نام برده میشوند. به دلیل کاهش مصرف آب نیز تراکم ساختار افزایش می‌یابد. با کاهش آب مصرفی و در نتیجه کاهش تخلخل، استحکام مکانیکی این جرمها افزایش می‌یابد.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST A50LCC
General Properties (Download PDF)
Classification …………….……..…..……….. Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…………………..….……. 6-8
Main Chemical Component
Al2O3 (%) ………………………………………… 50
SiO2 (%) …………………………………………… 42
Fe2O3 (%) ……………………………………….. 1.7
CaO (%) ………………………………………….. 2.5
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1500
Bulk Density at 110 ºC (gr/cm³) ….. 2.35-2.45
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC …………….. 550-750
After Firing at 1400 ºC ……………. 600-800
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ………. (-0.3) to (-0.1)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST A60LCC
General Properties (Download PDF)
Classification ……………..…..……….. High Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…………………..….……. 6-8
Main Chemical Component
Al2O3 (%) ………………………………………… 60
SiO2 (%) …………………………………………… 32
Fe2O3 (%) ……………………………………….. 1.8
CaO (%) ………………………………………….. 2.5
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1600
Bulk Density at 110 ºC (gr/cm³) ….. 2.40-2.60
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC …………….. 600-800
After Firing at 1400 ºC ……………. 650-850
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ………. (-0.3) to (-0.1)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST 60ADLCC
General Properties (Download PDF)
Classification ……………..…..……….. High Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…………………..….……. 5-7
Main Chemical Component
Al2O3 (%) ………………………………………… 60
SiO2 (%) …………………………………………… 36
Fe2O3 (%) ……………………………………….. 1.0
CaO (%) ………………………………………….. 2.0
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1640
Bulk Density at 110 ºC (gr/cm³) ….. 2.60-2.80
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC …………….. 650-850
After Firing at 1400 ºC ……………. 700-900
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ……… (-0.2) to (+0.2)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST A70LCC
General Properties (Download PDF)
Classification ……………..…..……….. High Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…..…………..….……. 5.5-7.5
Main Chemical Component
Al2O3 (%) ………………………………………… 70
SiO2 (%) ………………………………………….. 22
Fe2O3 (%) …………………………………………. 2
CaO (%) ………………………………………….. 2.5
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1620
Bulk Density at 110 ºC (gr/cm³) ….. 2.45-2.65
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC …………….. 650-850
After Firing at 1400 ºC ……………. 700-900
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ………. (-0.3) to (-0.1)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST A80LCC
General Properties (Download PDF)
Classification ……………..…..……….. High Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…..…………..….……. 5.5-7.5
Main Chemical Component
Al2O3 (%) ………………………………………… 80
SiO2 (%) ………………………………………… 11.5
Fe2O3 (%) …………………………………………. 2
CaO (%) ………………………………………….. 2.5
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1720
Bulk Density at 110 ºC (gr/cm³) ….. 2.65-2.85
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC …………….. 700-900
After Firing at 1400 ºC ……………. 750-950
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ……… (-0.2) to (+0.2)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST A85LCC
General Properties (Download PDF)
Classification ……………..…..……….. High Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…..…………..….……. 5.5-7.5
Main Chemical Component
Al2O3 (%) ………………………………………… 84
SiO2 (%) ………………………………………….. 9.5
Fe2O3 (%) …………………………………………. 2
CaO (%) ……………………………………………. 2
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1720
Bulk Density at 110 ºC (gr/cm³) ….. 2.65-2.85
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC …………….. 700-900
After Firing at 1400 ºC ……………. 750-950
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ……… (-0.2) to (+0.2)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST A90LCC
General Properties (Download PDF)
Classification ……………..…..……….. High Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…..…………..….……. 5.5-7.5
Main Chemical Component
Al2O3 (%) ………………………………………… 90
SiO2 (%) ………………………………………….. 6.8
Fe2O3 (%) …………………………………………. 1
CaO (%) ……………………………………………. 2
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1800
Bulk Density at 110 ºC (gr/cm³) ….. 2.75-2.95
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC …….….….. 800-1000
After Firing at 1400 ºC …….…….. 800-1000
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ……… (-0.2) to (+0.2)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST A94LCC-SFC
General Properties (Download PDF)
Classification ……………..…..……….. High Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…..…………..….……. 4.5-6.5
Main Chemical Component
Al2O3 (%) ……………………………………… 93.5
SiO2 (%) ……………………………………………. 3
Fe2O3 (%) ………………………………………. 0.1
CaO (%) ……………………………………………. 2
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1860
Bulk Density at 110 ºC (gr/cm³) ….. 2.90-2.90
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC ……….…….. 450-550
After Firing at 1500 ºC ……….……. 550-650
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ……… (-0.2) to (+0.2)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST A94LCC
General Properties (Download PDF)
Classification ……………..…..……….. High Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…..…………..….……. 4.5-6.5
Main Chemical Component
Al2O3 (%) ………………………………………… 94
SiO2 (%) ……………………………………………. 4
Fe2O3 (%) ………………………………………. 0.1
CaO (%) ………………………………………….. 1.6
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1860
Bulk Density at 110 ºC (gr/cm³) ….. 2.90-3.10
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC ………..….. 850-1050
After Firing at 1500 ºC ……..……. 850-1050
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ……… (-0.2) to (+0.2)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
AZARSHAHAB REFRACTORIES CO.
Low Cement Castables
ARCAST A96LCC
General Properties (Download PDF)
Classification ……………..…..……….. High Alumina Castable
Description…Low Cement Hydraulic Bonded Refractory Castable
Raw Material Basis ………….…. Low Iron Chamotte / Bauxite
Bond ………………….….………………….…………. Hydraulic
Installing Method …………………………… Casting / Vibrating
Packaging ……….……….. 25 kg net weight multi proof sacks
Storage Life (Month) …………….…………………..……..….. 9
Grain Size (mm) ………………………………………….. Max 6
Water Required (%) …………….…..…………..….……. 4.0-6.0
Main Chemical Component
Al2O3 (%) ………………………………………… 96
SiO2 (%) ……………………………………………. 2
Fe2O3 (%) ………………………………………. 0.1
CaO (%) ………………………………………….. 1.5
Physical & Thermal Properties
Maximum Service Temperature (ºC) .… 1880
Bulk Density at 110 ºC (gr/cm³) ….. 2.95-3.15
Cold Crushing Strength (kg/cm²)
After Drying at 110 ºC ………..….. 850-1050
After Firing at 1500 ºC ……..……. 850-1050
Permanent Linear Change (%)
After Drying at 110 ºC …….……… Negligible
After Firing at 1000 ºC ……… (-0.2) to (+0.2)
All data subject to reasonable deviation and therefore, should not be used for specification purposes.
