Q. Can Exposed Aggregate Concrete be placed over existing concrete?
A. Yes – provided certain practices are in place. It is best to discuss your particular situation with us at the time of choosing your mix.
Q. Does Exposed Aggregate Concrete require reinforcing mesh?
A. This is most important, as it helps reduce and control the incidence of cracking. Most cracks are formed within the first 24 hours of the concrete being placed but only become noticeable at a later date. Properly placed reinforcing mesh and acceptable concrete slumps are two ways to reduce the potential for cracking.
Q. Does Exposed Aggregate Concrete require Expansion Control Joints?
A. Yes – carefully planned Expansion Control Joints are also essential and are used to reduce the potential for random cracking. Methods used include:
- Saw Cutting
- Aluminum Strips
- Rubber Foam
Sometimes the clever use of pavers or bricks can disguise the crack control joint.
Q. Should Exposed Aggregate Concrete be sealed?
A. Yes – after your job has been laid and acid-washed correctly it is advisable to seal your new investment. This will:
- Offer some protection against staining
- Enhance the natural colours of aggregate in the mix design
Q. Can any Concrete lay Exposed Aggregate Concrete?
A. No – we strongly advise you to use one of our Preferred Contractors that we have specifically trained to apply our products. However, if you are an enthusiastic concreter who would like to become a Mentone Premix Preferred Applicator then please contact Gary or Glenn Finemore at Head Office for further details.