Development Application Part 2 of 2 Planning report Geotechnical report and plans MCU11/0168 & OPW11/0257

                                      Field Investigation Report cont'd
Client:           RIENMAC                                                              Job No:       15988
Site Location: Lot 34, Marcus Dunes Court, Marcus Beach                                Your Ref:



                                        GLOSSARY OF TERMS
                                  ROCK MATERIAL WEATHERING CLASSIFICATION

                  Term                  Symbol                              Definition
          Residual Soil                   RS         Soil developed on extremely weathered rock; the mass
                                                     structure and substance fabric are no longer evident;
                                                     there is a large change in volume but the soil has not
                                                     been significantly transported.

          Extremely weathered rock       XW          Rock is weathered to such an extent that it has 'soil'
                                                     properties, i.e. it either disintegrates or can be
                                                     remoulded, in water.

          Distinctly weathered rock       DW         Rock strength usually changed by weathering. The rock
                                                     may be highly discoloured, usually be ironstaining.
                                                     Porosity may be increased by leaching, or may be
                                                     decreased due to deposition of weathering products in
                                                     pores.

          Slightly weathered rock         SW         Rock is slightly discoloured but shows little or no
                                                     change of strength from fresh rock.
          Fresh rock                      FR         Rock shows no sign of decomposition or staining


                                        STRENGTH OF ROCK MATERIAL

              Term        Symbol       Point load                       Field guide to strength
                                      index (MPa)
                                          1,50

           Very Low          VL       >0.03    0.1     Material crumbles under firm blows with sharp end of
                                                       pick; can be peeled with knife; too hard to cut a
                                                       triaxial sample by hand. Pieces up to 3cm thick can
                                                       be broken by finger pressure.

           Low                L         >01 sO.3       Easily scored with a knife; indentations 1mm to 3mm
                                                       show in the specimen with firm blows of the pick point;
                                                       has dull sound under hammer. A piece of core
                                                       150mm long 50mm diameter may be broken by hand.
                                                       Sharp edges of core may be friable and break during
                                                       handling.

           Medium             M         >0.3 s 1.0      Readily scored with a knife; a piece of core 150mm
                                                        long by 50mm diameter can be broken by hand with
                                                       difficulty.


           High               H          >1 s 3        A piece of core 150mm long by 50mm diameter
                                                       cannot be broken by hand but can be broken by a pick
                                                       with a single firm blow; rock rings under hammer.




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