As long as there are homes and cars, there will be driveways--those personal sections of highway that link Main Street U.S.A. with the garages, carports and backyards of suburbia. And, like the public ...

Q: My concrete driveway has eight large slabs. The driveway slopes down from my garage to the street. The straight-line gaps between the slabs have enlarged, and some cracks are as wide as 2 inches. I ...