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A crack is a linear discontinuity produced by fracture. Cracks may be longitudinal, transverse, edge, crater, centreline, fusion zone, underbead, weld metal or parent metal.

If you maintain the paver regularly, then you can have the same glow for a long period of time. Even the small cracks have to be considered at the initial stage and rectified otherwise it leads to the major damage.

If you maintain the paver regularly, then you can have the same glow for a long period of time. Even the small cracks have to be considered at the initial stage and rectified otherwise it leads to the major damage.

The repair of defects that occur during welding ranges from simple welding operations to improve weld profile to extensive metal removal and subsequent welding to rectify extensive cracking.

A special dye is applied to the surface of the article to be tested. A suitable time interval allows it to soak into any surface defects. The surface is then freed from surplus dye and the dye in the crack revealed by either

The defect may be in a single run fillet weld requiring only a small amount of metal to be removed or it may be a large crack extending deep into parent metal.

Contech Services has years of experience with this process. Filling of cracks as small as .002 inches can be achieved with epoxy pressure injection and we guarantee remarkable results.

Our company mission statement is to provide the absolute best quality service and materials in the pavement maintenance industry. We are the industry leaders in this area for seal coating, crack sealing, striping, patching, paving, asphalt paving, airports and chipsealing. We look forward to serving our community.

Occurs in the HAZ due to the precipitation of chromium carbides. In the 5500C - 8500C range, the chromium leaches out of the grain and reacts with the carbon to form chromium carbides, due to the chromium having a greater affinity for carbon.