| 摘要 |
The object of the invention is to provide monolithic refractory capable of solving the drawbacks of the conventional monolithic refractories such as rupture, lack of low shrinkage, low bonding strength, low hot strength and having both superior strength and superior applicability. The present invention provides monolithic refractory comprising 1 to 30 weight parts of pitch having 65 to 90 wt% of fixed carbon and a softening point of 250 to 350 DEG C to form carbon bond, relative to 100 weight parts of refractory material so as to form carbon bond. The present invention also provides the monolithic refractory added with 0.01 to 0.5 weight part of carbon fiber. These may be used as any type of monolithic refractory such as gunning material, casting material, in particular, aqueous type casting material, burning type hot repairing mix, mortar, stamping material and any basic, neutral or acid refractory material may be used. In the case of gunning material, if heat-hardening type type phenol resin having a high molecular weight is added to the above, the effect may be further enhanced. |
