concrete Pumping, pipelines and accessories

The pumping of concrete has become one of the fastest growing methods of trans- porting and handling at the job site. Pumping is a point-to- point delivery system in which con- crete is moved under pressure  through rigid pipe, flexible hose or a combina- tion ofboth to its final destination in the forms with little ne- cessity for further handling of the mix. Hence, with pumping there is less chance for segregation. There are a number of other advantages in pumping  concrete that should be con- sidered when evaluat-ing job site transport-ing     and      handling methods. The use of pumps can eliminate or greatly reduce the need for access roads, scaffolding, and other concrete handling equipment.  Hoists and cranes are freed to handle other con- struction materials concurrently with concrete placing. Where tower cranes are being used the use of pumps permits them to be small-er and to speed…