02:12PM | 02/17/03
Member Since: 07/25/01
9 lifetime posts
It has been about a year and I am getting ready to make contact with the company that layed the driveway in order to seek restitution.

We have a total of 4 long cracks (long meaning about 4-8 feet), and several smaller ones I am not so concerned about.

I am very sensitive to the characteristics of the cracks and it seems that the long cracks have widened by a few hairs in the last year or so. Will the cracks continue to widen? Why?

Jason Alden


03:59PM | 02/18/03
Member Since: 11/06/02
1281 lifetime posts
You would need to have this assessed by an engineer familiar with concrete and with soils before chasing restitution. Then you have some expert testimony on your behalf.

Who was responsible for the soils preparation on this job?
Most of this type failure comes from poor soils. If you handled the soils work and all they did was the concrete placement and finishing, then you have a hard time making your case. If the soils move, the crete will split.


01:37AM | 02/19/03
Member Since: 01/14/03
264 lifetime posts
Soils is part of the issue, but only part. True, if the subgrade and base perparations were not done correctly, the concrete may "heave" and crack. That would be due to a number of possibilities, but most prominantly poor compaction and/or poor drainage. Poor compaction will allow for movement of the earth under the slab, allowing for unwanted movement of the slab, thus cracking. Poor drainage will also allow for movement of the earth under the slab, thus cracking.

Remember that all concrete slabs are subject to cracking, though. Each and every one. Proper design of the slab will reduce cracking to negligible, or confine it to specific targeted places, like tooled or sawn joints. These joints are commonly referred to as control joints, as they provide a weak vertical plane in the slab, and will by the place cracks might occur, thus not marring the larger plain faces of the slab. Reinforcing is yet another issue. Was you slab reinforced with reinforcing steel? This steel is called rebar (short for reinforcing bars), it comes in various sizes, and when properly designed into the slab, will be yet another guard against crakcing, as it holds the slab together as one unit. But even well designed slabs like these will still have control joints to capture the errant crack that may still occur.

If your slab was not built upon a well compacted free-draining gravel base course, was not reinforced with even minimal reinforcing steel, and had no jointing pattern to direct the cracks to less visible places, then your slab was destined for large cracks right from the start.



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

All bookworms need a good bookmark that inspires them to keep reading. To make this colorful bookmark, cut a rectangular p... It turns out that many bath and kitchen cleansers contain chemicals that are dangerous to the skin and eyes, and often pro... So often we paint tiny nooks white to make them appear larger, but opting for a dark, dramatic wall color like this one—Be... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon