In many architectural design, the fire rating of the building is placed on the top priority, especially the floor height of more than 20 floors, the fire material requirements are very strict, the building flue, kitchen wall, boiler flue, flammable area should be isolated by the firewall, in many refractory materials refractory brick is the preferred thing, in the firewall masonry refractory brick mainly use national standard refractory brick, Its size is 230mmx114mmx65mm, the model is T-3, the weight is 3.5-3.7kg, and sometimes the firebrick seven points are used to supplement the role.
soil, refractory soil has a strong adhesion, and has a certain degree of refractoriness, so refractory soil is widely used in refractory masonry, in building fire prevention if the fire level is required to be very high, to use refractory cement masonry, refractory cement refractoriness is about 500 degrees higher than refractory soil.