What is polished concrete?
The term polished concrete describes a decorative floor finish which leaves the concrete exposed as the final finish. Polished exposed aggregate finishes are achieved by grinding the surface of the slab to expose the stone/aggregate within the concrete or topping mix followed by polishing of the surface to achieve the desired finish.
Do I have to have the exposed aggregate look?
No, the degree of grinding can give different degrees of stone/aggregate showing in the final finish. If required, the look of no stone at all can be obtained.
What is the process?
The first step involves grinding the concrete to reveal the aggregate within. The degree of uniformity of exposure needs to be specified. Once a satisfactory level of aggregate exposure is achieved, the concrete is polished using progressively finer grinding pads. Once polished, the final step is to apply a suitable sealer.
Can I choose the aggregate for a new concrete slab?
Yes, if you are laying a new concrete slab. As well as selecting different cement colours in concrete, there are various aggregate colours, types, sizes and minerals to choose for the topping mix. You will need to discuss these options with your concrete supplier or concretor.
How do I achieve a uniform aggregate finish?
The uniformity of the finished floor is determined by the distribution of the aggregate in the concrete which depends upon the placement and finishing of the concrete by the concretor.
What options are available if I have an old concrete slab?
Depending on the state and level of damage to the concrete floor, the option is to grind and polish the concrete. Each individual slab may differ in stone exposure and type of stone. Every existing concrete slab will have its own unique finish.
What sealers are applied?
Depending on the finish and affordability there are various sealers to suit every application from penetrating sealers through to topcoat sealers.
How much does polished concrete cost?
The price varies according to the condition of the slab, the size of the area, the level of grinding/polishing required and the sealer used.
When should I obtain a quote for concrete polishing?
At the very earliest planning stage is best for new concrete, however, for existing concrete you can obtain a quote at anytime.