Page 44 - UNIT 6 - HIGHWAY MAINTENANCE
P. 44

Civil Engineering Department  | DCC3113 : Highway & Traffic Engineering




                                                        Surface dressing





                                                                                      Surface dressing is an application of
                                                                                       bitumen followed with an aggregate
                                                                                       cover in a single or multiple
                                                                                       application.

                                                                                      The aggregates used have to be
                                                                                       cleaned and free from dust. This will
                                                                                       cohesion between the aggregates
                                                                                       and the bitumen. If dusty
                                                                                       aggregates are used, then pre-
                                                                                       coating them first is more suitable.

                                                                                      Commonly used as a wearing course
                                                                                       on low volume roads.
                                                                                      Also been used as a resurfacing
                                                                                       technique to treat surface failure on
                                                                                       these roads
















          Prepared by : SITI ZURAIFA BINTI MD SAH, zuraifa@pmu.edu.my
   39   40   41   42   43   44   45   46   47   48   49