How to deal with the gap of refractory bricks

1. Refractory bricks should leave 10mm wide joints every 3×6 meters. When laying bricks, leave miri strips between the joints. After laying, take out miri strips, and then use 1:1 cement mortar to fill the joints to ensure gray The width of the slit is uniform, which can ensure that the gap between the products is 2mm. The basic requirement is that the gap is horizontal and vertical.

2. After paving a cell, sprinkle a small amount of water on the surface to make the bricks soaked and close to saturation, with an interval of about 15 minutes, use a clapper and a wooden hammer to smash it in sequence, and move the clapper to level it while smashing. Then adjust the gap in the order of vertical first and then horizontal. After the gap is adjusted to be smooth and even, the adjusted floor tiles will be flattened again.

3. After the refractory bricks are laid by jointing and grouting, the joints should be cleaned up. After brushing and moistening, use 1:1 cement mortar to joint with a joint width of 10mm, and the remaining joints shall have a smaller joint width of 2mm Therefore, 1:3 lime mortar grouting method is adopted.

4. Use a scraper to treat the unsuitable places one by one. The joints of the paved bricks should be uniform and uniform in width. The brick surface should be dense, flat and smooth.