Concrete Floor Scaling

Best practices for pouring and curing concrete in cold weather.

Concrete floor scaling.

Proper management of concrete during pouring to ensure the provision of adequate cover and placement of joints at correct positions. A section is an area about 10 x 12 ft. Air entrained concrete having a low water cementing materials ratio a minimum portland cement content of 300 kg m3 and moderate slump up to 125. Repair flaking and repair scaling in industrial concrete floor.

The responsibility could lie with the specifier the concrete supplier or the contractor depending on what caused the trouble. Essentials tools for a concrete contractor. That is defined by the existing control joints. It is not usually caused by chemical corrosive action.

Apply a good water sealant to the finished surface to prevent water from entering into the concrete. Before starting power wash the entire surface and brush it with a stiff. In the guide for concrete floor and slab construction aci committee 302 explains how scaling occurs. Essentials for applying epoxy flooring over concrete.

It usually causes the top layer of industrial concrete to easily break off from the flooring system. Possibly the problem is scaling. The initial signs of surface flaking usually. Flatwork exposed to deicing salts requires air contents of 5 to 8 in freshly mixed concrete made with 14 mm or 20 mm coarse aggregate.

Spalling or concrete surface failure on a garage floor is caused by residual water in the concrete expanding and contracting during freeze thaw cycles. This is similar to spalling except that the concrete tends to come off in thin layers. Concrete overlay fixes the problem. Estimating costs for concrete formwork rebar labor and ready mix.

Scaling is often the result of the action of deicers during periods of freezing and thawing. Enlist a couple of helpers and overlay the concrete surface one section at a time. The resurfacing material simply spreads over the existing spalled concrete surface to create a fresh flawless finish. Flaking concrete and scaling concrete occurs when new concrete floors are being installed and the temperature is cold and or too much moisture is present.

To prevent scaling the use of air entrained concrete is a must. In concrete floor slab early entry dry cut helps prevent spalling. Gunite and shotcrete are products that can do much more than pools.