The attached picture better shows the location/extent of the blotches - they seem to be concentrated around the dywidag bars and spacers which in this pour were of the "wagon wheel" type. Perhaps the vibration in this area was increased as these items also acted as vibrator when the poker came...
Hi,
I was hoping somebody might be able to shed some light on how the concrete in the attached photos has ended up blotchy (see attached photos) and how we might avoid it in the future... There was no issue during the pour of this sample panel but the discolouration has got us all stumped...
