Mat Foundation Concrete Placement
Mat Foundation Concrete Placement
(OP)
I have a mat foundation with a 150'x80' footprint and 6' deep - Roughly 2670 CY of concrete. Are there additional placement requirements you would specify for the 6' deep mass of concrete?






RE: Mat Foundation Concrete Placement
Some specifications say that concrete is to be placed without causing separation. If you want to be more specific you could say concrete should not fall more than 5'.
RE: Mat Foundation Concrete Placement
RE: Mat Foundation Concrete Placement
I know this is more of a means and methods issue, so I do appreciate your input. I like to be somewhat educated on which means and methods Don't Work, so I can express concerns if they are proposed.
RE: Mat Foundation Concrete Placement
ACI 207.1.
You definitely need to address means and methods, as this will affect the final product.
Low heat of hydration mix design and temperature controls are a minimum.
A roughened construction joint ("cold joint") in the middle with a 3 day delay between pours will reduce self-restraint.
RE: Mat Foundation Concrete Placement
A thickness of 6 feet of concrete can cast in place in three phases, with intermediate horizontal reinforcement.
ing. FERRARI Alberto - www.ferrarialberto.it
RE: Mat Foundation Concrete Placement
Michael.
Timing has a lot to do with the outcome of a rain dance.