Page 81 - Lecture Notes DCC3113
P. 81

Figure 5-12: Diagrammatic representation of fixed-form paving train


                                                          Work
               Slip form paver

                       The   previous   method     is
               analogous  to  manually  placing  the
               concrete.  The  process  can  also  be
               completed  without  using  fixed-forms.
               This process is called slip-form paving. It
               works  on  the  basis  that  the  sides  of  the
               pavement  slab  will  support  themselves
               before an initial set has been developed within the concrete. It produces a fully compacted slab. It cannot
               therefore  be  subsequently  disturbed  in  order  to  place  dowel  or  tie-bars,  as  the  surrounding  concrete
               could not then be properly made good. The slip-form paver spreads, compacts and finishes the concrete
               with only the forming and finishing of the joint grooves, texturing and curing done using other pieces of
               equipment.




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