The Washington Post, August 12th, 1999
Q. What causes a section of concrete driveway to fail after only eight years? The apron between the street and sidewalk remains strong and unpitted. However, the section between the sidewalk and house is crumbling to stone, sand and powder. Both sections were poured the same day but from different truckloads. A. It is possible that the concrete mixes in the truckloads were different even though they came from the same supplier. Concrete with too much water or not enough cement is likely to be too weak to withstand an automobile load. The deteriorating driveway section may be collecting water ...
HighBeam Research, Free Preview: 'Q & A'... Full Membership required for unlimited access. Free 7-day trial.
Subscribers: HighBeam content is only available to HighBeam subscribers. Click the link above for more information.
