The refractory clay foam is softened in water and can be made into various shapes, and firebrick mortar is a raw material for making a refractory material, as a binder and in a hard refractory clay. According to the chemical composition (useful components, harmful components), physical properties (refractory degree, plasticity, loss on ignition, etc.
) of soft refractory clay, fireproof mortar can be divided into three grades: I, II, and III.
Application of Refractory Mortar:
Suitable for masonry clay bricks , high alumina bricks and any other fire bricks
Items | CH-NN38 | CH-NN42 | CH-NN45 | CH-LN55 | CH-LN65 | CH-LN75 | |
AL2O3% | 38 | 42 | 45 | 55 | 65 | 75 | |
Refractoriness / | 1630 | 1690 | 1710 | 1770 | 1770 | 1790 | |
rupture strength/ MPa ≥ | 110℃×24h | 1 | 1 | 1 | 1 | 1 | |
3h | 1200 3 | 1200 3 | 1200 3 | 1400 5 | 1400 5 | 1400 5 | |
Bonding time/min | 1~3 |
Advantages of Fire Proof Mortar:
High strength at high temperature
Easy to construct and long service life