Refractory mud, also known as fire mud or joint material (powder). Used as a refractory masonry material.Formed by the refractory powder and admixture. Selection of refractory mud material, should be considered with the masonry refractory products consistent with the material.In addition to the fire-resistant mud in addition to the material, you can also use the coating method or spray method for the protective coating of the lining. Main features 1, good plasticity, easy construction; 2, bonding strength, corrosion resistance.
Technical Data of Refractory mud:
|
Item |
Unit |
Index |
|
|
SiC |
% |
≥50 |
|
|
Al2O3 |
% |
≤20 |
|
|
CCS |
110 |
MPa |
≥1.0 |
|
1000 |
MPa |
≥0.25 |
|
|
Bulk density |
g/cm3 |
1.6~1.7 |
|
|
Shrinkage rate,1000ºC |
% |
≤1.0 |
|
|
Shrinkage after sintering,1MPa×1000ºC |
% |
≥30 |
|
Refractory cement is also called aluminate cement.Aluminate cement is made of bauxite and limestone as raw materials, calcined by calcium aluminate as the main component, alumina content of about 50% of clinker, and then grinding into the hydraulic cementitious material.Aluminate cement is often yellow or brown, also gray. Used to cement all kinds of refractory aggregate (such as corundum, calcined high bauxite, etc.), made of refractory castable or refractory concrete for industrial furnace lining.
|
Items |
CA50/A600 |
CA50/A700 |
CA50/A900 |
|
|
Al2O3% |
≥50.0 |
≥50.0 |
50.0--58.0 |
|
|
CaO% |
33.0--35.0 |
33.0--35.0 |
33.0--36.0 |
|
|
SiO2% |
≤8.0 |
≤8.0 |
5.0--7.5 |
|
|
Fe2O3% |
≤2.5 |
≤2.5 |
1.5--2.5 |
|
|
R2O% |
≤0.4 |
≤0.4 |
≤0.4 |
|
|
Setting time(min) |
Initial set |
≥30 |
≥30 |
≥30 |
|
Final set |
≤360 |
≤360 |
≤360 |
|
|
Flexural strength(Mpa) |
1 day |
6.0 |
6.5 |
8.0 |
|
3 days |
7.0 |
7.5 |
9.0 |
|
|
Compressive strength(Mpa) |
1 day |
45 |
55 |
75 |
|
3 days |
55 |
65 |
85 |
|
|
Fineness |
Residue on Sieve |
<15 |
<12 |
≤3.0(180mesh) |
|
Specific Area(g/m2) |
≥350 |
≥350 |
350-450 |
|
The biggest difference between the two materials is the same as the one used as a finished product, while the refractory cement is made of raw materials as a refractory aggregate made of refractory aggregates for the furnace lining material. So the use of two different properties of the material also formed in the use of different methods on the effect.
The biggest difference between the two materials is the same as the one used as a finished product, while the refractory cement is made of raw materials as a refractory aggregate made of refractory aggregates for the furnace lining material. So the use of two different properties of the material also formed in the use of different methods on the effect.
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