rj kendall pty ltd - wagga wagga1500mm in depth had been undertaken. we then witnessed proof rolling...

RJ Kendall Pty Ltd Building & Engineering Consultant 13 Clare Ave, Wagga Wagga, NSW 2650 ph 0467 552 263 Email: [email protected] ABN 13 687 800 389

_______________________________________________

______________________________________________________________________________

75 Baylis

5th May 2014

Peter Fitzpatrick

Director of Properties

Diocese of Wagga Wagga

RE: Fill Lots 541 – 549 & 525 – 528 Lloyd Estate Stage 5, Wagga Wagga

This is to confirm that I have received and examined the following documents:

1. Aitken Rowe Geotechnical Engineering compaction records and certificate of fill

placement dated 26th March 2014.

2. Detailed plan of subdivision from Esler and Associates Project 00016969 Sheets

42 & 43 Rev E

I have confirmed from these documents that

1. all fill has been placed as “controlled fill” across the whole of these allotments

2. all fill is to a depth of 1500mm or less.

3. the fill has an allowable bearing capacity of 100kPa.

In accordance with AS2870 Residential Slabs and Footings Code and the advice

from Aitken Rowe, this fill is suitable to use as a foundation material for any

foundation designed in accordance with that Code providing the required bearing

capacity is less than or equal to 100kPa. In this instance there is no requirement to

carry foundations down to natural ground.

I recommend that Aitken Rowe testing shall be further engaged to give a “site

classification” for these sites which will complete the site information required in order to

allow the foundation design to be carried out.

Rod Kendall B.E. (HONS), L.G.E, F.I.E.AUST.

4/2 Riedell Street (Po Box 5158), Wagga Wagga, NSW, 2650 – Tel (02) 69395555 – Fax (02) 69215992

60 Benerembah Street, Griffith, NSW, 2680 - Tel (02) 69645551 - Fax (02) 69645552 Email: [email protected]

G Geotechnical Engineering

Environmental Consultancy

Soil Concrete Aggregate Testing

NATA Accredited Laboratories

ABN 53 058 315 138 ACN 058 315 138

16 April 2014 Reg. No.: FC14-08

Turners Excavations Pty Ltd

14 Blaxland Road

Wagga Wagga NSW 2650

Attention: Mr. Lew Turner

Dear Sir,

CERTIFICATION OF FILL PLACEMENT – TREE BACKFILL AREA (South of Lot 526),

LLOYD ESTATE STAGE 5, WAGGA WAGGA, NSW

Further to your request, we inspected the exposed subgrade and tested the fill placement at the

above site between 4 and 7 March 2014. We confirm that placement of fill at the above site was

tested by Aitken Rowe Testing Laboratories Pty Ltd in accordance with AS 3798-2007 “Guidelines

on earthworks for commercial and residential developments”. The fill placement was inspected

and tested for the maximum depth of 1500mm in compacted layers of 300mm throughout tree

backfill area. The test reports are herewith attached.

The subject site is located at Lloyd Estate (Stage 5), Wagga Wagga, NSW and includes the tree

backfill area of an unidentified lot directly south of Lot 526 and north of the existing dam. We

inspected the exposed subgrade prior to the placement of the new fill to ensure topsoil and

unsuitable materials were removed and the exposed subgrade is properly proof rolled. It was

noted that topsoil was removed across the site at the time of inspection and an excavation up to

1500mm in depth had been undertaken. We then witnessed proof rolling of the exposed medium

plasticity sandy silty clay subgrade and no soft or heaving areas were detected. We also witnessed

proof rolling on the final fill layer and the exposed fill was found to be firm and stable at the time

of the inspection.

The medium plasticity sandy silty clay fill material was placed throughout the site. Five In-situ

density tests carried out on the fill placement indicated relative compaction ranging from 98.5% to

100.0% standard. The result shows achievement of required density in accordance with the

specification requirements.

It is considered that the fill is deemed “controlled fill” across the tree backfill area in accordance

with AS 3798. The controlled fill can then therefore be considered “suitable” to use as

foundation/subgrade, for which an allowable bearing pressure of 100kPa may be adopted. It

should be noted that this certification is limited to the backfilling of the tree area only and not

for the entire lot.

2 Registration No: FC14-08

Project/Location: Certification of Fill Placement – Tree Removal Area (South of Lot 526), Lloyd Estate Stage 5, Wagga Wagga, NSW

Client: Turners Excavations – Wagga Wagga

Should you have any queries, please do contact us.

Yours truly,

Tin Maung

Senior Geotechnical Engineer

Attachments:

• Addendum

• In-situ density test report

• Proof roll inspection report

ADDENDUM

LIMITS OF INVESTIGATION

The recommendations made in this report are based on the assumption that the test results are representative of the overall subsurface conditions. However, it should be noted that even under optimum circumstances, actual conditions in some parts of the building site may differ from those said to exist, because no geotechnical engineer, no matter how qualified, and no subsurface exploration program, no matter how comprehensive, can reveal all that is hidden by earth, rock and time. The client should also be aware that our recommendations refer only to our test site locations and the ground level at the time of testing. The recommendations in this report are based on the following: - a) The information gained from our investigation. b) The present "state of the art" in testing and design. c) The building type and site treatment conveyed to us by the client. d) Historical Information Should the client or his agent have omitted to supply us with the correct relevant information, or make significant changes to the building type and/or building envelope, our report may not take responsibility for any consequences and we reserve the right to make an additional charge if more testing is necessary. Not withstanding the recommendations made in this report, we also recommend that whenever footings are close to any excavations or easements, that consideration should be given to deepening the footings. Unless otherwise stated in our commission, any dimensions or slope direction and magnitude should not be used for any building costing calculations and/or positioning. Any sketch supplied should be considered as only an approximate pictorial evidence of our work.

PAGE: 1

OF: 1

ORDER NO : *

TEST METHODS : AS1289.2.1.1

CLIENT : TURNERS EXCAVATIONS - WAGGA WAGGA AS1289.5.4.1

JOB DESCRIPTION : CERTIFICATION AS1289.5.7.1

LLOYD ESTATE - STAGE 5 AS1289.5.8.1

WAGGA WAGGA *

SECTIONS REPRESENTED : TREE REMOVAL BACKFILL (South of Lot 526) SAMPLING PROCEDURE: AS1289.1.2.1

LOT No. : * CLAUSE: 6.4b

LAYER & MATERIAL : FILL - SANDY SILTY CLAY REGISTRATION No. : R12b FC14-08

SAMPLE OR SITE No.: 1 2 3 4 5 *

CHAINAGE (m): WEST CENTRE WEST EAST CENTRE *

OFFSET (m) : CENTRE CENTRE CENTRE CENTRE CENTRE *

DATE OF TEST : 5/03/14 5/03/14 5/03/14 7/03/14 7/03/14 *

TIME OF TEST : 1210 1220 1225 0840 0845 *

DEPTH BELOW FINAL LEVEL (mm) : 1200 900 600 300 NIL *

REDUCED LEVEL (m) : * * * * * *

TESTED DEPTH (mm) : 300 300 300 300 300 *

FIELD DRY DENSITY (t/m3): 1.69 1.69 1.66 1.66 1.67 *

FIELD WET DENSITY ( t/m3 ) : 1.96 1.98 1.95 1.94 1.96 *

PCWD. PEAK CONVERTED WET DENSITY ( t/m3 ) : 1.98 1.98 1.98 1.96 1.97 *

APCWD. ADJUSTED PEAK CONVERTED WET DENSITY ( t/m3 ) : * * * * * *

MAXIMUM DRY DENSITY ( t/m3 ) : 1.71 1.69 1.68 1.67 1.68 *

AITKEN ROWE Testing Laboratories Pty Ltd

2 Riedell St. Wagga Wagga N.S.W. 2650

TEST REPORT

DENSITY IN SITU

MAXIMUM DRY DENSITY ( t/m3 ) : 1.71 1.69 1.68 1.67 1.68 *

APPARENT OPT. MOISTURE CONTENT %: 2.0 DRY 1.1 DRY 1.0 DRY 1.8 DRY 1.9 DRY *

OPTIMUM MOISTURE CONTENT (%) : 18.2 18.5 18.8 19.0 19.1 *

FIELD MOISTURE VARIATION % : 2.3 DRY 1.3 DRY 1.2 DRY 2.1 DRY 2.2 DRY *

CONTENT ACTUAL % : 15.9 17.2 17.6 16.9 16.9 *

% of OPTIMUM MOISTURE CONTENT : 87.0 93.0 94.0 89.0 88.0 *

% of OVERSIZE: NIL NIL NIL NIL NIL *

DENSITY OF OVERSIZE ( if any ) t/m3 : N/A N/A N/A N/A N/A *

FRACTION TESTED (mm): -19.0 -19.0 -19.0 -19.0 -19.0 *

COMPACTIVE EFFORT : STANDARD STANDARD STANDARD STANDARD STANDARD *

TIME FROM ADDITION OF ADDITIVE TO LAB. COMPACTION: * * * * * *

MD DETERMINATION BEFORE/AFTER COMPACTION : BEFORE BEFORE BEFORE BEFORE BEFORE *

RELATIVE COMPACTION (%) : 98.5 100.0 99.0 99.0 99.5 *

SPECIFIED (%) : 98.0 98.0 98.0 98.0 98.0 *

REMARKS: *

*

APPROVED SIGNATORY : ....................................

G.R.LYONS

DATE : 17/03/2014

Form R12b revised 17/03/2014

Accredited for compliance with

ISO/IEC 17025. The results of the

tests, calibrations and/or

measurements included in this

document are traceable to

Australian/national standards.

Number: 4679

PAGE: 1

4/2 Riedell St. Wagga Wagga N.S.W. 2650 OF: 2

TEST METHOD: T198

ORDER No.: *

CLIENT : TURNERS EXCAVATIONS - WAGGA WAGGA DATE OF TEST: 4/03/14

*

CERTIFICATION

TREE REMOVAL BACKFILL (South of Lot 526)

LLOYD ESTATE - STAGE 5, WAGGA WAGGA REGISTRATION No : FC14-08

TOPSOIL REMOVED (mm): 100 DEPTH BELOW FINAL LEVEL(mm): 0 - 1500

UNSUITABLE MATERIAL REMOVED: 1500

ROLLER DESCRIPTION: GRADER

CAT

18t

N/K

SURFACE DEFORMATION / CONDITION PERCIEVED AS:

1. NON PERCEPTIBLE

2. NO DEFLECTION, FIRM

ROLLING PATTERN (% OF OVERLAP): 70

TIME OF PROOF ROLL: 0845

SURFACE NOT WETTED PRIOR TO PROOF ROLL


TYPE:

MODEL:

GROSS MASS:

TYRE PRESSURE:

PROOF ROLLING TEST

JOB DESCRIPTION :

LOCATION/SECTION/LOT No.:

TEST REPORT

Site Plan

REMARKS: *

*

*

*

APPROVED BY : ....................................

G.R.LYONS

DATE : 17/03/2014

Proof Rolled Area

(Failed)

Proof Rolled Area

(Passed)

Form R38 Dated 25/09/13

PAGE: 2


TEST METHOD: T198

ORDER No.: *


*

CERTIFICATION

TREE REMOVAL BACKFILL (South of Lot 526)

LLOYD ESTATE - STAGE 5, WAGGA WAGGA REGISTRATION No : FC14-08

TOPSOIL REMOVED (mm): N/A DEPTH BELOW FINAL LEVEL(mm): NIL

FILL MATERIAL PLACED (mm): 0-1500


CAT

18t

N/K


1. NON PERCEPTIBLE





MODEL:

GROSS MASS:

TYRE PRESSURE:


TEST REPORT

PROOF ROLLING TEST

JOB DESCRIPTION :


TYPE:

Site Plan

REMARKS: *

*

*

*

APPROVED BY : ....................................

G.R.LYONS

DATE : 17/03/2014

Proof Rolled Area

(Failed)

Proof Rolled Area

(Passed)


4/2 Riedell Street (Po Box 5158), Wagga Wagga, NSW, 2650 – Tel (02) 69395555 – Fax (02) 69215992

60 Benerembah Street, Griffith, NSW, 2680 - Tel (02) 69645551 - Fax (02) 69645552 Email: [email protected]

G Geotechnical Engineering

Environmental Consultancy

Soil Concrete Aggregate Testing

NATA Accredited Laboratories

ABN 53 058 315 138 ACN 058 315 138

26 March 2014 Reg. No.: FC14-02

Turners Excavations Pty Ltd

14 Blaxland Road

Wagga Wagga NSW 2650

Attention: Mr. Lew Turner

Dear Sir,

CERTIFICATION OF FILL PLACEMENT – LOTS 541-549 & 525-528, LLOYD ESTATE STAGE 5,

WAGGA WAGGA, NSW

Further to your request, we inspected the exposed subgrade and tested the fill placement at the

above site between 21 January and 17 March 2014. We confirm that placement of fill at the above

site was tested by Aitken Rowe Testing Laboratories Pty Ltd in accordance with AS 3798-2007

“Guidelines on earthworks for commercial and residential developments”. The fill placement was

inspected and tested for the maximum depth of 800mm (for lots 525-528) and 1000mm (for lots

541-549) in compacted layers of 300mm throughout with the exception of the top layer which was

tested in a 100mm layer for lots 541-549 and 200mm layer for lots 525-528 at the site. The test

reports are herewith attached.

The subject site is located at Lloyd Estate (Stage 5), Wagga Wagga, NSW and includes lots 541-549

and lots 525-528. We inspected the exposed subgrade prior to the placement of the new fill to

ensure topsoil and unsuitable materials were removed and the exposed subgrade is properly proof

rolled. It was noted that 150mm of topsoil was removed across the site at the time of inspection.

We then witnessed proof rolling of the exposed medium plasticity sandy silty clay subgrade and no

soft or heaving areas were detected. We also witnessed proof rolling on the final fill layer and the

exposed fill was found to be firm and stable at the time of the inspection.

The medium plasticity sandy silty clay fill material was placed throughout the site. Eighteen In-situ

density tests carried out on the fill placement indicated relative compaction ranging from 98.5% to

102.5% standard. The result shows achievement of required density in accordance with the

specification requirements.

It is considered that the fill is deemed “controlled fill” across the site in accordance with AS 3798.

The controlled fill pad can then therefore be considered “suitable” to use as foundation/subgrade,

for which an allowable bearing pressure of 100kPa may be adopted.

2 Registration No: FC14-02

Project/Location: Certification of Fill Placement – Lots 541-549 & 525-528, Lloyd Estate Stage 5, Wagga Wagga, NSW

Client: Turners Excavations

Should you have any queries, please do contact us.

Yours truly,

Tin Maung

Senior Geotechnical Engineer

Attachments:

• Addendum

• In-situ density test report

• Proof roll inspection report

PAGE: 1

OF: 3

ORDER NO : *





WAGGA WAGGA *

SECTIONS REPRESENTED : LOTS 525-528 & 541-549 SAMPLING PROCEDURE: AS1289.1.2.1


LAYER & MATERIAL : FILL; Sandy Silty CLAY REGISTRATION No. : R12b FC14-02

SAMPLE OR SITE No. 1 2 3 4 5 6

CHAINAGE (m) LOT 548 LOT 547 LOT 544 LOT 525 LOT 527 LOT 541

OFFSET (m) EAST EAST N/W S/E SOUTH WEST

DATE OF TEST 3/02/14 3/02/14 3/02/14 3/02/14 3/02/14 4/02/14

TIME OF TEST 1340 1345 1350 1355 1400 1425

DEPTH BELOW FINAL LEVEL (mm) 700 700 700 500 500 400

REDUCED LEVEL (m) * * * * * *

TESTED DEPTH (mm) 300 300 300 300 300 300

FIELD DRY DENSITY (0.01 t/m3) * * * * * *

FIELD WET DENSITY (0.01 t/m3) 2.00 2.01 2.00 2.00 1.95 2.00

PCWD. PEAK CONVERTED WET DENSITY (0.01 t/m3) 1.97 1.99 2.00 2.01 1.98 2.00

APCWD. ADJ. PEAK CONVERTED WET DENSITY (0.01 t/m3) * * * * * *

MAXIMUM DRY DENSITY (0.01 t/m3) * * * * * *

OPTIMUM MOISTURE CONTENT (0.5 %) 20.0 20.0 19.5 20.0 20.5 20.5

FIELD MOISTURE VARIATION (0.5 %) 2.0 3.0 2.5 1.0 1.5 2.5

(WET/DRY): DRY DRY DRY DRY DRY DRY

CONTENT ACTUAL (0.5 %) 18.0 17.0 17.0 19.0 19.0 18.0

MOISTURE RATIO (0.5 %) 89.0 86.0 88.0 96.0 93.0 89.0

OVERSIZE (0.1 %) NIL NIL NIL NIL NIL NIL

DENSITY OF OVERSIZE (if any) (0.01 t/m3)

N/A N/A N/A N/A N/A N/A

FRACTION TESTED (mm) -19.0 -19.0 -19.0 -19.0 -19.0 -19.0

COMPACTIVE EFFORT STANDARD STANDARD STANDARD STANDARD STANDARD STANDARD

TIME FROM ADDITION OF ADDITIVE TO LAB. COMPACTION * * * * * *

MD DETERMINATION BEFORE/AFTER COMPACTION AFTER AFTER AFTER AFTER AFTER AFTER

DENSITY RATIO (0.5 %) 102.0 101.0 100.0 99.5 98.5 100.0

SPECIFIED DENSITY RATIO (%) 98.0 98.0 98.0 98.0 98.0 98.0

REMARKS: *

*


G.R.LYONS

DATE : 25/03/2014




TEST REPORT

DENSITY IN SITU







Number: 4679

PAGE: 2

OF: 3

ORDER NO : *





WAGGA WAGGA *




SAMPLE OR SITE No. 7 8 9 10 11 12


OFFSET (m) SOUTH N/E S/E NORTH NORTH SOUTH

DATE OF TEST 4/02/14 4/02/14 4/02/14 4/02/14 11/02/14 11/02/14

TIME OF TEST 1430 1435 1445 1450 0935 0940

DEPTH BELOW FINAL LEVEL (mm) 400 400 200 200 100 100


TESTED DEPTH (mm) 300 300 300 300 300 300









CONTENT ACTUAL (0.5 %) 17.0 16.5 16.0 17.0 16.0 16.0

MOISTURE RATIO (0.5 %) 84.0 83.0 87.0 88.0 83.0 83.0








DENSITY RATIO (0.5 %) 102.5 99.0 100.5 98.5 98.5 99.5


REMARKS: *

*


G.R.LYONS

DATE : 25/03/2014




TEST REPORT

DENSITY IN SITU







Number: 4679

PAGE: 3

OF: 3

ORDER NO : *





WAGGA WAGGA *




SAMPLE OR SITE No. 13 14 15 16 17 18


OFFSET (m) WEST N/W SOUTH N/W N/W S/E

DATE OF TEST 11/02/14 11/02/14 11/02/14 17/03/14 17/03/14 17/03/14

TIME OF TEST 0945 0950 1000 1615 1620 1625

DEPTH BELOW FINAL LEVEL (mm) 100 NIL NIL NIL NIL NIL


TESTED DEPTH (mm) 300 200 200 100 100 100









CONTENT ACTUAL (0.5 %) 17.0 16.5 17.0 16.0 17.0 16.0

MOISTURE RATIO (0.5 %) 88.0 83.0 88.0 82.0 88.0 87.0








DENSITY RATIO (0.5 %) 100.5 101.0 100.5 98.5 98.5 99.0


REMARKS: *

*


G.R.LYONS

DATE : 25/03/2014




TEST REPORT

DENSITY IN SITU







Number: 4679

PAGE: 1


TEST METHOD: T198

ORDER No.: *


*

CERTIFICATION

LLOYD ESTATE - STAGE 5, WAGGA WAGGA

LOTS 541-549 & 525-528 REGISTRATION No : FC14-02

TOPSOIL REMOVED (mm): 150 DEPTH BELOW FINAL LEVEL(mm): 800-1000

UNSUITABLE MATERIAL REMOVED: N/A


CAT

18t

N/K


1. NON PERCEPTIBLE





REMARKS: *

*

*

*

APPROVED BY : ....................................

G.R.LYONS

DATE : 25/03/2014


TYPE:

MODEL:

GROSS MASS:

TYRE PRESSURE:

PROOF ROLLING TEST

JOB DESCRIPTION :


TEST REPORT

Site Plan

Proof Rolled Area

(Failed)

Proof Rolled Area

(Passed)

Lots 541-549

1000mm B.F.L

Lots 525-528

800mm B.F.L

N

Goldstein Crescent

Waterhouse Avenue

Ansett Place

Chipp Place

Clunies Ross Crescent


PAGE: 2


TEST METHOD: T198

ORDER No.: *


*

CERTIFICATION

LLOYD ESTATE - STAGE 5, WAGGA WAGGA

LOTS 541-549 & 525-528 REGISTRATION No : FC14-02

TOPSOIL REMOVED (mm): N/A DEPTH BELOW FINAL LEVEL(mm): NIL

UNSUITABLE MATERIAL REMOVED: N/A


CAT

18t

N/K


1. NON PERCEPTIBLE





REMARKS: *

*

*

*

APPROVED BY : ....................................

G.R.LYONS

DATE : 25/03/2014

MODEL:

GROSS MASS:

TYRE PRESSURE:


TEST REPORT

PROOF ROLLING TEST

JOB DESCRIPTION :


TYPE:

Site Plan

Proof Rolled Area

(Failed)

Proof Rolled Area

(Passed)

Lots 541-549 NIL

B.F.L

Lots 525-528 NIL

B.F.L

N

Goldstein Crescent

Waterhouse Avenue

Ansett Place

Clunies Ross Crescent

Chipp Place


rj kendall pty ltd - wagga wagga1500mm in depth had been undertaken. we then witnessed proof rolling...

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