This can either be the use of a damp proof coating which is applied on the surface of the concrete or a membrane on top of the concrete.
How to dry out damp concrete floor.
If it is damp or even darkened by moisture it will skew your test results.
There are several ways to reduce moisture problems in floor slabs.
Preparation will be key to this solution working effectively.
Preparation is key with these coatings and the substrate must be sufficiently clean and dry.
Wet concrete can take anywhere from 24 hours to a few days to completely dry out if left on its own.
The first being touch dry normally an hour and the second coat needs to be applied within 24 hours of the first.
Damp proof floor coating.
This damp proofing concrete floor treatment is most commonly seen in industrial settings.
A damp proof coating will be applied onto the concrete floor with a roller or brush.
How to remove moisture from a concrete floor waiting for wet concrete to dry out before applying musclegloss 100 solids epoxy can significantly hold up your application.
Make sure that the concrete where you place the plastic is dry.
In the design and construction phases the development of concrete mixes that dry more quickly installing subgrade vapor barriers that preven moisture intrusion from below and using finishing techniques that keep the surface open to allow slab drying.
How to dry out a damp concrete floor.
Most damp proof floor coatings are applied directly to the concrete floor surface using a brush or roller.
Tape a small square of clear plastic to the floor using painter s tape.
Humid air is moved across a desiccant material that binds and holds the moisture.
A hot air stream is then used to release the moisture from the desiccant and vent it away from the slab s environment.
If so your floor may be too damp to seal.
Which type of coating is chosen will depend on the intended use of the floor.
After 24 hours check the plastic to see if water has condensed underneath it.