Precautions and repair measures of masonry refractory concrete precast block

Masonry refractories concrete prefabricated block must pay attention to the following matters:
1) refractory concrete prefabricated blocks of brick masonry joints for the 5mm ~ 10mm.
2) Masonry mud used should be consistent with the pre-block material.
3) masonry should be on the bottom surface of the prefabricated block on the surface of pulp, and then re-line. When hanging, should also be in the corresponding side of the pulp.
4) After the completion of each layer of prefabricated blocks, fill the joints in the refractory brick concrete.
5) cut off the ring, tie or fill in the vicinity of mud.
6) dome arch, the arch should try to tighten the sides.
7) masonry prefabricated block, such as the gap is too large, can be used in place of cast-in-place refractory castable concrete or fire brick plug.
silica ramming mass concrete repair methods:
  1) crack repair lining lining cracks, may not repair. But the emergence of thick cracks, cracks should be looking at the location, analysis of whether the impact on the lining life, can not form a large peeling. Where important parts, must be repaired.
Repair, first with water to wet. Usually in the thick stitch filled with homogeneous refractory material concrete, tapping formation. If the seam can be repaired into V-shaped re-repair, the effect is better. If a large slit appears in the lining, two slightly larger round holes can be cut at the two ends of the seam

, Re-block, so to prevent the spread of further expansion of the crack.
  2) peeling patching repair, should first clean up the peeling, sprinkle some water, and then the preparation of good homogeneous refractory concrete fill. Be careful when patching tightly wiping light. Repair to pay attention to the oven, the time is about 12h, then you can put into use.