We did these pours on Saturday 13 October and Sunday 14 October on the Colesburg interchange project. (Basil Reed and Newport Construction Joint venture)
Here are some photos and specs.
Volumes of 820m3+560m3 concrete was pumped between 2 pumps (40mpa with a 19mm dolerite aggregate)
• Slab thickness of 2100mm poured in layers of 500mm at a time
• 420 tons of cement used
• 120 tons of fly ash used
• 120 tons of steel used
• Total Bridge weight of 5500 tons
Concrete4U supplied readymix from 2 batch plants running with an average supply of 48m3/hr which was pumped between 2 concrete boom pumps.
First pour started at 6:30am and was completed in 18 hrs. Second pour started at 7:40am and was completed in 14 hrs.