Dehumidifier For Concrete Drying in 2023
Desiccant Dehumidifiers for Concrete Slab Drying
Desiccant Dehumidification is the most effective equipment for drying a concrete slab. It lowers the relative humidity (RH) to near 0% and substantially decreases drying times.
Other dehumidification options can be used but are less effective than a desiccant dehumidifiers. For example, Low Grain Refrigerant (LGR) type dehumidifiers can only lower relative humidity to around 25% and conventional dehumidifiers only lower the RH to around 35%.
For RH, the lower percentage (i.e. 0%) the lower the moisture content in the air. The lower the RH, the faster the concrete slab dries.
Desiccant Dehumidifiers combined with air movements can be the most effective way to quickly dry a concrete slab., however CAUTION should be used as over-drying of the slab is a possibility. The process should be closely monitored by experienced technicians.
Minimising the volume of air (and concrete) being dried is a practical way to optimise the drying process. Plastic sheeting is normally used to create a thin layer of dry air above the slab. Doing this helps reduce the volume of air being dried but is still not as ideal as using a dehumidifier
Concrete Slab Drying Options
Waiting for a slab to dry naturally would be the most cost effective method of drying, however time constraints are often a factor - especially on building sites. Using LGR dehumidifiers combined with air movers in a closed environment can have some success in drying a slab, however this could still take several weeks. Alternatively, heating the slab in an open environment using infrared lamps may also help however this method relies heavily on good ambient conditions.
Desiccant Dehumidifier Options
Humiscope designs, sells, installs and rents dehumidifiers. We have had many companies hire a desiccant dehumidifier on a temporary basis in order to optimally dry a concrete slab.
Visit the links below - one showing our desiccant dehumidifiers options, the other shows the range of dehumidifiers in our rental fleet.
Humiscope can help with set up and ducting
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