Q.: We're considering grooving a slippery concrete floor in our manufacturing plant to reduce the danger of accidents. However, I'm concerned about the effect of such grooving on the floor's structural strength and abrasion resistance. Is this a valid concern?

A.: Larry Mosher, executive director of the International Grooving and Grinding Association, says this isn't a concern. Grooved bridge decks can withstand the forces applied by 18-wheelers, and many industrial floors have been grooved successfully.

In one case, chemical plant ramps with 1/4 x 1/4-inch grooves on 2-inch centers showed no signs of wear after several years of forklift traffic. Floors have performed well even when the grooves have been cut on 2-inch centers both ways, producing a square groove pattern.