Product Introduction
High-alumina refractory mortar is a joint material used for masonry of high-alumina bricks of the same material. It is composed of powder, water, liquid binder and admixture, and is generally used by spreading method.
Product Advantage
When using high-alumina mortar, adding a certain proportion of drinking water can be used as a joint material. If a certain proportion of phosphoric acid or water glass is added, it can also be used. The addition is determined by the application temperature of the furnace lining. After stirring the addition, apply it between the bricks. The setting time is 2-3 hours.
Product Data
| Items | LN-55 | LN-65 | LN-75 | LN-85 | LN-90 | ||
| Al2O3 % ≥ | 55 | 65 | 75 | 85 | 90 | ||
| Refractoriness ℃ ≥ | 1760 | 1780 | 1780 | 1780 | 1800 | ||
| Bond strength Mpa | 110℃ dry ≥ | 1.0 | 1.0 | 1.0 | 2.0 | 2.0 | |
| 1400℃×3h heating ≥ | 4.0 | 4.0 | 4.0 | 6.0 | 6.0 | ||
| Refractoriness under load 0.2Mpa ℃ ≥ | / | / | / | 1600 | 1650 | ||
| Reheat linear change % | 1200℃×3h heating | -5~ +1 | |||||
| Bonding time min | 1-3 | ||||||
Application Field
It is used for the joints between high-alumina bricks and can also be used as a thermal insulation coating.
