Commercial site investigation data and classification report

                             Shrink-Swell Index and Insitu Moisture Content

CLIENT: HR Design Consulting Engineers                                  CSI JOB NUMBER: 12186
PROJECT: Proposed Dwelling                                              DATE SAMPLED: 11/06/18
SITE ADDRESS: Lot 5 Taylor Court, Cooroy                                DATE TESTED: 11/06/18


SAMPLE INFORMATION

SAMPLE LOCATION:          Borehole 6

DEPTH RANGE:              0.3 – 0.4                  (m)

SAMPLE
DESCRIPTION:              CLAY (CH), high plasticity fines, orange brown mottled pale grey and red brown, moist, stiff, DPP
180 kpa (FILL)


                                                    TEST RESULTS

INSITU SOIL MOISTURE:                                22.7                       (%)

( Cu ) SHEAR STRENGTH -                              185                        Kpa
based on pocket penetrometer.
                                                                                      3
BULK DENSITY:                                        1.887                      t/m

SHRINKAGE STRAIN:                                    7.6                        (%)

SWELLING STRAIN:                                     0                          (%)

( Iss ) SHRINK-SWELL INDEX***                        4.2                        (%)



On all clay sites we recommend a minimum ‘M’ Classification, regardless of the shrink/swell results, due to the
ability of clay reactivity and depth to change over a site.

                                              SPECIMEN PROPORTIONS

SHRINK * (mm) .Diameter:              47.0.
SWELL ** (mm) .Diameter:              45.0.

Notes:
* Standard shrinkage specimen proportions are:- length within range of 1.5 to 2.0 specimen diameters.
** Swell measured in one-dimensional consolidation cell, loaded 25 kpa. Maximum specimen ratio:- diameter to
thickness should be 2.5:1.
*** Determined with Guidance from AS2870, “Residential Slabs and Footings” and test method AS1289.7.1.1.

Reported by: Brian Croke Assoc Dip Civil Eng




CSI: 12186Lot5TaylorCourtCooroy

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