In the dome of the Pantheon in Rome, several construction techniques were used to allow such a bold construction to stand. One concerns the composition of the concrete (in this case, non-reinforced ...

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

Harvey Haynes, inventor of Trak Joints, says his new tool for ground slab joints makes installation easier, lowers the risk of random cracks, is cheaper than traditional methods and does not produce ...