Precast architectural concrete section 03 45 00.
Architectural rubbed concrete finish.
The exterior skin designed as a rainscreen facade consists of 25 000 square feet of architectural precast tracery and ornamental panels gracefully integrated with brick masonry.
I recommend the following when placing architectural concrete.
Immediately after concrete has been placed in forms concrete finishers utilize a screed to level out the concrete surface.
The new aci 301 10 specifications for structural concrete lays out the requirements for surface finish 1 0 2 0 and 3 0 and unspecified as cast finishes.
It s like paying for a hamburger and wanting the cheese for free.
Available in gray or white.
The most basic type of concrete finish is a smooth surface created through the use of screeds and trowels.
Rub out new concrete walls for added protection.
When the bids hit they always accept the class c but hold the concrete contractor to the class a guidelines.
After the panel is removed from the form the retarder is removed by sandblasting.
After you have formed and poured your new concrete walls you will need to apply a finish to the surface to help seal it and to make it more visually appealing.
Architectural concrete finishes can cost up to three times more than a class c finish.
Concrete finish covers color and texture variations in poured concrete with a uniform finish eliminating the need for costly rubbing.
Part 3 execution 3 01 repair of surface defects.
Cleveland concrete contractor ron simonetti says a smooth rubbed finish done with an abrasive stone should look the same as a grout cleaned sacked finish.
Where concrete surfaces will receive architectural finishes such as resilient floor coverings or paint or membrane waterproofing membrane forming curing compound shall not leave a coating or residue that will impair bond of adhesives paints and coatings with concrete.
A popular easy to apply and long lasting finish is called rubbing.
1 8 to 3 8 portland cement based.
Provides a uniform texture and architectural finish.
The end result is a panel with coarse aggregate exposed to the degree called for by the design.