Thanks to these advances in technology even a classic grey concrete floor will look stunning with the right surface preparation and finishing.
Light weight concrete finish floor.
Plus rebar and concrete.
The water retained by the air entrained concrete and the more porous lightweight aggregates also greatly increases the cure time for fully dry material.
For instance you can t clean the surface with muriatic acid if you re planning on using an acid based stain and cracks or holes may need to be repaired for some finishes but can be left as is for others.
All our work is done with power trowels and when the slab is.
Excessive amounts of water or higher slumps will cause the lightweight aggregates to segregate from the mortar.
In fact today s concrete floors come in a range of stains colors and textures.
Suspended floors have been benefiting from lightweight concrete for years as it reduces the weight on the structure and increases fire resistance.
Finishing lightweight concrete on elevated decks.
These floors are constructed for different purposes but the reduction of dead loads on the structure is.
Finishing light weight concrete requires special attention.
When our client proposed a polished finish which requires grinding densifying and penetrant coatings the negatives for lightweight concrete began to emerge.
How to finish concrete floors.
Workability reduces bleeding and is recommended for lightweight concrete by both aci 211 2 and aci 302.
The other option is a wood structure with assumed 2 layers of 3 4 subfloor vapor barrier and then 2 3 of light weight concrete.
We have installed hundreds of thousands of square feet of suspended floor slab on metal decking using lightweight concrete and we ve found it s next to impossible to get a smooth level floor.
Lightweight aggregate air entrained concrete is increasingly used to cast interior above grade floors.
Prep work and cleaning.
Cost savings and fire resistance.
If the surface of interior floors are going to be hard troweled use precautions to minimize the formation of blisters and delaminations.
Modern day concrete floors are fully customizable with a variety of beautiful finishing options to choose from.
For existing surfaces most projects will consist of three phases.
Most notably renzo piano s the shard a marvelous 95 floor structure made of lightweight concrete that took only four years to build.
For workability and weight reduction escsi recommends 4 to 7 percent air entrainment.
How this is done will vary depending on the finish to be applied.
An example is lite deck which costs around 3 25 sqft of floor surface for the form.
Lightweight concrete floor provides more efficient strength to weight ratio in concrete floor systems when compared to other conventional concrete floor systems.
According to john ries executive director of the expanded shale clay and slate institute escsi salt lake city lightweight concrete floors are typically 25 to 35 lighter than regular concrete aggregate.