- Time:Sep 11, 2023
refractory bricks are commonly classified into high-aluminum, clay, magnesia, silicon carbide, lightweight, etc. When laying refractory bricks of different materials, the refractory mud used for masonry must be of the same material as the refractory bricks. Fire clay.
For example, high-alumina bricks must use high-aluminum refractory mud, but the first-grade high-aluminum bricks with 75% content must use 65% high-aluminum refractory mud; the second-grade high-alumina bricks with 65% content must use 55-60% Content of high-aluminum refractory mud; third-grade high-alumina bricks use 50% high-aluminum refractory mud.
Under normal circumstances, the proportion of refractory mud used is 5%. However, the proportion of magnesia fire clay is about 2% less, because there is semi-dry masonry phenomenon. For example, the magnesia bricks used in rotary kilns are semi-dry masonry, so the amount is small. Lightweight clay bricks are matched with 10% lightweight fire clay.
| serial number | Refractory brick name | Matching refractory clay name |
| 1 | Ordinary alkali-resistant bricks, alkali-resistant insulation bricks, high-strength alkali-resistant bricks | Alkali resistant refractory mud |
| 2 | Phosphate bricks, phosphate combined special high alumina bricks | Phosphate refractory mud |
| 3 | High alumina bricks | High alumina refractory mud |
| 4 | Magnesia chrome bricks | Magnesium chromium refractory mud, magnesia iron refractory mud |
| 5 | spinel bricks | Spinel refractory mud, magnesia refractory mud |
| 6 | Clay bricks, clay insulation bricks | clay refractory mud |
| 7 | diatomaceous earth bricks | Diatomite refractory mud |
| 8 | calcium silicate board | calcium silicate board cement |
