Quick set cement moisture question

[Bobharford]

Hi
Very long story short, plumbers appointed by insurance company to repair water leak under floor of lounge left a trail of disaster. They filled the trench they had dug the length of the lounge with quick set concrete. Few weeks after decorator noticed there was a leak because they hadn't connected the water supply pipe to the stop tap correctly. The metre of concrete there had become saturated. Floor layer can't lay the flooring and a humidifier or dryer can't be used as they are old plastic tiles that contain asbestos . (mind you the plumbers ripped a load up to dig the trench- which is against regs.) Floor layer says he can't put floor down as the moisture in the concrete is still reading 800 this is nearly two months on.
My question if the section of damp concrete is replace with new quick set how long would it take for the new stuff to dry out or should I stick with the wait and the ripped up floor!

 

[JohnD]

When was the leak fixed? Have you got a water meter? Is there a screed over the concrete?

Where is the dpm in this floor?

BTW, do you think you know a regulation that prohibits removal of the tiles? What is it?

Who told you a dehumidifier can't be used? Why?

 

[Bobharford]

Some info here
http://www.cila.co.uk/files/Asbestos Article for CILA 1008.pdf
I questioned wether they had replaced the DCM and they said there was none there when they excavated. So they didn't put one in This a house built in the early 1970's as iy is covered up I can't prove otherwise. The company who checked the moisture level said heat and humidifier couldn't be used due to the damaged tiles and asbestos risk.

 

[Bobharford]

No screed over the concrete the leak from the dodgy connect was 'fixed' by the decorator who found it 7 weeks ago

 

[JohnD]

What were the results of the asbestos tests that were carried out in accordance with your document?

If you have a concrete floor with no dpm there is no reason it should ever become dry. Was it a radiator pipe or water supply pipe?

Have you got a water meter?

 

[Bobharford]

I didn't see the report but it was positive for asbestos it was a water supply pipe. I heard back today that the floor layer spoke with the specialist company who say high salt levels can give false readings so they used several devices to take account and the result of this is that it is dry.
. The floor layer is now going to screed and the other company will do another moisture test5 days after.

 

[JohnD]

have you got a water meter?