Concrete Floor Slab Design For Freezer

Floors are classified based on the intended use of the floor see the table below that was adapted from aci 302 1 r 04 concrete floor and slab construction.

Concrete floor slab design for freezer.

Concrete sub slab 10 mill poly vapor barrier 2 layers of extruded polystyrene 5 6 7. Protective layers of insulation vapor barriers mud slabs and sub slab glycol heating prevent the soil from freezing and swelling below your. Concrete slab design the concrete slab must be designed to resist the punching shear and weight of the pallet racks. Freezer floor heave occurs when the moisture in the soil freezes and expands below your slab.

Under normal conditions no moisture or ice is on a freezer floor. Because of this stable environment with no freeze thaw cycles air entrainment is not required. What are the key design elements of a freezer floor. The actual design of normal concrete warehouse floors depends on the supporting ground beneath.

If it is of a variable nature or not weight supporting and the imposed loads will be relatively large then piling may be needed. If the soil then begins to thaw it will also sink and settle causing massive damage to the concrete above. Freezer store concrete floors or wearing slabs must incorporate all the requirements of normal warehouse floors with a. If it is of a variable nature or not weight supporting and the imposed loads will be relatively large then piling may be needed.

In this case the minimal insulation in the freezer floor became saturated with water from floor washing operations further reducing its insulating value. The freezer slab must be insulated to retain the loss of heat from the slab and balance the vapor pressure with the warm ground below the freezer floor. The pink and black coloring on the concrete is microbial growth due to constant and heavy condensation. The actual design of normal concrete warehouse floors depends on the supporting ground beneath.

However virtually all freezer floor slabs stay at the freezer s operating temperature until the end of the freezer s useful life. Freezer store concrete floors or wearing slabs must incorporate all the requirements of normal warehouse floors with a. Many of these requirements are defined by the class of floor the owner wants note that decorative concrete is typically a class 1 floor. Get a specific design completed from outside drill holes under the freezer add heat to these holes to melt the ice.