Refractory Cement
1.General refractory cement:made by high alumina bauxite and limestone materials
2.High pure refractory cement:made by industrial alumina and limestone
|
Item |
CA50 A600 |
CA50 A700 |
CA50 A900 |
CA70 |
CA80 |
|
|
Refractoriness |
1460℃ |
1660℃ |
1750℃ |
|||
|
Al2O3 |
50.78% |
51.50% |
53.5% |
69.22% |
79.81% |
|
|
SiO2 |
7.89% |
7.67% |
6.40% |
0.66% |
0.48% |
|
|
CaO |
33.15% |
33.55% |
33.80% |
23.55% |
19.22% |
|
|
Fe2O3 |
2.23% |
2.17% |
1.89% |
1.89% |
0.22% |
|
|
Rupture strength (MPa) |
1day |
6.3 |
7.3 |
8.9 |
11.1 |
7.2 |
|
3days |
7.5 |
8.4 |
9.7 |
12.8 |
9.6 |
|
|
Compressive strength(MPa) |
1day |
53.5 |
58.5 |
79.0 |
65.2 |
44.8 |
|
3days |
63.0 |
65.0 |
88.0 |
76.9 |
55.9 |
|
|
Setting time |
Initial time |
1Hours5 Min |
1Hours20Min |
1Hours25Min |
3Hours |
46Min |
|
Final time |
3Hours25Min |
3Hours 0Min |
2Hours25Min |
5Hours6Min |
2Hours13Min |
|
|
Specific surface area(m2/kg） |
347 |
360 |
464 |
582 |
639 |
|
Features
1.Rapid-hardening,high strength.
2.High refractoriness,high-temperature service
3.Good resistance to corrosion,high wear resistance.
4.High thermal shock stability.
5.Low thermal conductivity,low liner shrinkage.
6.Good integrity with furnace lining, easy operation,
7.Allow direct contact of fire, suitable for various atmosphere.
Applications
1.Construction of sulfate corrosion resistance and high temperature proof.
2.Used in rush repairs, leakage stopping , resistance to sulfate attack.
3.Ideal binder for refractories such as refractory concrete,refractory castable,ramming mixing,gunning mixing and manmade marble bricks.
4.Used as ceramic adhesive.
5. Used for sealing coating products and refractory mortar.
6. Used in chemical industry, metallurgical industry, building materials.
7.Furnaces lining material of metallurgy industry, heat treatment furnace.
8.Furnace lining material of incineration of garbage,recirculating fluidized bed furnace.
9.Furnaces lining material of chemical industry and construction industry.
