Cracked conncrete floor.

devonman · 03-04-2011, 06:05 PM

A friend of mine has a problem with his concrete floor. It has some large cracks in it, and it seems to be bulging upwards by about an inch in the centre. Does anyone know what may be the cause of this?

Bud Cline · 03-04-2011, 06:12 PM

The footings or foundation could be sinking. The soild under the slab could be heaving. There could be several things going on.

How about some more information.

Is this a basement floor?
Is it a house on a slab?
Is it even a structure of any kind?
In what part of the country?
How old is the concrete?

You know...unimportant stuff like that!

devonman · 03-04-2011, 06:31 PM

The house was built in the 1950's in Dorset, England.
There is no basement. I would think that the house has normal foundations and the concrete floor sits on the ground. It is mainly in his lounge where the problem is.
Thanks for your help.

Bud Cline · 03-04-2011, 07:19 PM

Well, one would have to consider soil content. What's the weather been like lately? How long has this been going on? Where's the water table? Does he/she have proper drainage away from the structure? Is there gutters and downspouts? I don't know anything about England's weather or building techniques.

Just some things to think about.

devonman · 03-05-2011, 01:50 PM

A friend has suggested that the causes may be a sulphide attack. Does this sound like a possibility? If so what would be the next course of action.

Ron6519 · 03-05-2011, 02:12 PM

Quote:

Originally Posted by devonman

A friend has suggested that the causes may be a sulphide attack. Does this sound like a possibility? If so what would be the next course of action.

According to this article, it should be easy to check if it's a Sulfate attack.
http://www.nature.com/nature/journal.../342663a0.html
Ron

03-04-2011, 06:05 PM	#1
devonman Newbie Join Date: Sep 2010 Posts: 17	Cracked conncrete floor. A friend of mine has a problem with his concrete floor. It has some large cracks in it, and it seems to be bulging upwards by about an inch in the centre. Does anyone know what may be the cause of this?

03-04-2011, 06:12 PM	#2
Bud Cline Tileguy Join Date: Mar 2006 Posts: 9,104	Cracked conncrete floor. The footings or foundation could be sinking. The soild under the slab could be heaving. There could be several things going on. How about some more information. Is this a basement floor? Is it a house on a slab? Is it even a structure of any kind? In what part of the country? How old is the concrete? You know...unimportant stuff like that!

03-04-2011, 06:31 PM	#3
devonman Newbie Join Date: Sep 2010 Posts: 17	Cracked conncrete floor. The house was built in the 1950's in Dorset, England. There is no basement. I would think that the house has normal foundations and the concrete floor sits on the ground. It is mainly in his lounge where the problem is. Thanks for your help.

03-04-2011, 07:19 PM	#4
Bud Cline Tileguy Join Date: Mar 2006 Posts: 9,104	Cracked conncrete floor. Well, one would have to consider soil content. What's the weather been like lately? How long has this been going on? Where's the water table? Does he/she have proper drainage away from the structure? Is there gutters and downspouts? I don't know anything about England's weather or building techniques. Just some things to think about.

03-05-2011, 01:50 PM	#5
devonman Newbie Join Date: Sep 2010 Posts: 17	Cracked conncrete floor. A friend has suggested that the causes may be a sulphide attack. Does this sound like a possibility? If so what would be the next course of action.

Cracked conncrete floor.