Self leveling compound for damp basement floor.

dhc

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Hi,
I want to level a concrete basement floor. The floor isn't saturated although some points show higher damp content readings after wet weather and only a surface damp-proof-barrier is feasible. What's the correct type of self leveling compound to use, cement or latex?
If cement, can a waterproofer be included in the mix?
If latex, what damp proofing treatment can be applied to the concrete which the latex will then stick to.
Thanks,
dhc.
 
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Use a floor levelling compound by all means but don't expect either latex or regular to offer any degree of damp proofing, nor will they stick to any dpm you put down either.

You either need to apply the flc in isolation and forget the dpm or prepare tank the floor properly.
 
You will need a proper liquid DPM such as Ball F75 or F76 and then your self levelling stuff

Even so, you need to check that any surface DPM is suitable for moisture under pressure, as the two mentioned above may not be
 
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Hi,
I want to level a concrete basement floor. The floor isn't saturated although some points show higher damp content readings after wet weather and only a surface damp-proof-barrier is feasible. What's the correct type of self leveling compound to use, cement or latex?
If cement, can a waterproofer be included in the mix?
If latex, what damp proofing treatment can be applied to the concrete which the latex will then stick to.
Thanks,
dhc.

I have had this problem in the past and used an sbr in a screed. The system used was as follows.

do surface preparation
remove all debris
damp with water
make up a slurry mix of sbr and cement in equal quantities
brush apply onto damp surface
make up screed using 1 part cement:2 parts sharp sand
make up sbr/water solution in a 50/50 mix and add to cement and sand to achieve a semi dry screed
apply onto wet slurry at about 10mm thick
cove up wall about 150mm
allow to cure

that should do the job. there are many sbr on market some are better than others.
 

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