Planned and Existing Characteristics:
Concrete contains multiple variations, just like in wood. Each piece of concrete has its own character. There are a number of characteristics to be considered when polishing your concrete floor. Like wood or other natural materials, there is multiple variations in concrete. Each piece of concrete has its own character, and it will always differ from place to place and could from pour to pour.
Below is a list of some of the characteristics that can be planned, and unplanned. We try our best to work with our clients and contractors in advance to help reduce the variations and set the right expectation for all our projects.
– Metal strips for aesthetic purposes
– Stained and exposed aggregate
– Imbedded recycled glass or other aggregates
– Integral coloring added to concrete
Different mixes separated by a joint causing difference in color and aggregate exposure
Patched cracks or filled expansion joints
Surface crazing created by improper curing or a mix that dried too fast
Debris imbedded in the concrete (ex. wood chunks, foam, etc.)
Exposed rebar from improper placement
Low Floor Flatness (low areas)
Improper floor protection
Helicopter or Screed marks- This is a very common phenomenon in slabs that were not poured with the intention of polishing
Varying Aggregate usually happens when a floor that hasnt been poured level.
Exposed foam on edges of slab
– Vapor barrier left on surface of concrete creating discoloration
– Stains on surface caused by chemicals, paint, caulking, spray foam etc. during building process
– Improper curing and or mix