Features
On a Seattle foundation job in the summer of 1988, nine concrete pumps set West Coast records for placing concrete. After the first hour of pumping, with no truck-waiting time, a remarkable 1,350 cubic yards of concrete were in the hole. The boom pumps had placed a record-breaking volume that averaged 150 yards per unit. The nine pumps kept pace with the 115 ready mix trucks, enabling the continuous pour to be completed in 13.5 hours.