The lateral pressure of self-compacting concrete (SCC) it depends on the amount of pressure it exerts laterally when fresh. The design of formwork is governed by this pressure. For slump greater than 2.5 inch p= (3.28+0.26Rt)Wc>=630
@@nasseryariphdpe648 thank you for the reply. I’m preparing to build forms for an 8’H x 40’L x 10”W garden / privacy wall. Before I do, however, I need to figure out how much scc lateral pressure is / will be. Perhaps I need to just consult a structural engineer. Thanks again! Be well
The lateral pressure of fresh concrete is calculated as temporary like fluid liquid pressure so vibration from the concrete vibrator do not add any more pressure provided the contractor follows the designed rate (rate of placement per hour)
Lateral Pressure on formwork is addressed in both ASCE 37-02 and ACI 347-04, but there are few differences in both: - Column Forms ASCE states maximum limit of 3000 psf, however ACI has no upper limit. -Wall Forms ASCE doesn't consider the placement height, but ACI use 14' as one of the applied conditions. ASCE uses 2000 psf as maximum pressure but ACI again has no upper limit. They both are accepted . I would use ACI.
Thank you for sharing. How do I calculate lateral pressure for SCC?
The lateral pressure of self-compacting concrete (SCC) it depends on the amount of pressure it exerts laterally when fresh. The design of formwork is governed by this pressure. For slump greater than 2.5 inch p= (3.28+0.26Rt)Wc>=630
@@nasseryariphdpe648 thank you for the reply. I’m preparing to build forms for an 8’H x 40’L x 10”W garden / privacy wall. Before I do, however, I need to figure out how much scc lateral pressure is / will be. Perhaps I need to just consult a structural engineer. Thanks again! Be well
Great video. Is there a way to calculate extra load created by vibrating, or does the vibrater just make the whole column/wall liquid pressure?
The lateral pressure of fresh concrete is calculated as temporary like fluid liquid pressure so vibration from the concrete vibrator do not add any more pressure provided the contractor follows the designed rate (rate of placement per hour)
How do I decide to use either ACI 347 or ASCE 37-14?
Lateral Pressure on formwork is addressed in both ASCE 37-02 and ACI 347-04, but there are few differences in both:
- Column Forms
ASCE states maximum limit of 3000 psf, however ACI has no upper limit.
-Wall Forms
ASCE doesn't consider the placement height, but ACI use 14' as one of the applied conditions.
ASCE uses 2000 psf as maximum pressure but ACI again has no upper limit. They both are accepted . I would use ACI.