For starters, the material used in the body of ... designed for water runoff, creates a surface that doesn’t match with the utility cover, which is level, Wehr said. Also, the covers themselves ...

Manning says the auger-fed Magnum moves roughly 50% more material than ... should make sure the utility constructs the patch at least 3/8 inch below the pavement surface. "That's so we have ...

The unique pattern laid down limits surface area and has an overhanging structure that limits adhesion. Also, tiny air pockets between the beads prevent materials from actually touching other ...

Ceramic surfaces do not have a regular structure in most cases. The surface finish quality is hugely influenced by the geometrical deviation of the material and the crystal size. A finish with lapping ...