Code of practice for refractory brickwork

Code of practice for refractory brickwork

 

Today's refractory bricks are popular with customers because of their special properties, so they are widely used in millions of homes. However, because the performance is different from other bricks, there are also special aspects to pay attention to when building. Then follow our refractory brick manufacturers to find out.

 

I. Refractory bricks are required to be filled with mortar, and the width of the bricks shall comply with the design requirements of the drawings. The cracks between the refractory bricks not only provide a channel for the infiltration and erosion of the high-temperature molten slag in the operating state, but this slag erosion itself also promotes the continuous increase of the brick gaps. Both of these effects increase the surface of the slag in contact with the side of the refractory brick, and cause the refractory brick to suffer excessive stress during each contraction and expansion cycle caused by heat. The slag has a corrosive effect on the furnace brick not only in the radial direction but also in the circumferential direction of the refractory brick. Especially when there is a circumferential crack on the side of the refractory brick, the circumferential erosion speed is faster, which makes the surface of the refractory brick lumpy. Therefore, the circumferential cracks of refractory bricks have a greater impact on the life of refractory bricks than radial cracks.

 

In actual masonry, the principle of refractory brick masonry should be met to meet the industry masonry requirements of refractory materials. When laying refractory bricks, the brick joints should be full, the mortar should be squeezed out of the joints, empty joints are not allowed, and mortar cannot be poured into the gray joints. The fullness of the mortar should be greater than 95 ﹪.

2. Each refractory brick must be beaten with a wooden hammer or rubber hammer after being placed in order to squeeze out more than fire mud. It is necessary to ensure that the brick seam and t