Proof Rolling

PROJEK LEBUHRAYA PANTAI TIMUR FASA 2, TERENGGANU PAKEJ 1A : DARI CH.0.00 KE CH.3750 JABATAN KERJA RAYA PASUKAN PROJEK LPT FASA 2

Ref No.

METHOD STATEMENT

MainContractor. Q-BENA RESOURCES SDN BHD

Date :

Title:

PROOF ROLLING CH 0.00 – CH 3750

QBR/MS/PW/0212/02

07-02-2012

1. INTROD INTRODUC UCTION TION & PURPO PURPOSE SE

 This method statement statement has been prepared for the work which carries out at

location as highlighted in drawings. The purpose is to

locate any soft spots

and to determine determine difference settlement settlement in the

pavement pavement structure structure before

placing the sub base. By locating

soft spots early, proof rolling avoids costly

repairs after the asphalt

concrete surface has been placed.

2. WORK WORK SEQU SEQUEN ENCE CE.

•

Perform proof rolling as directed.

Adjust the load and tire inflation pressures within the range of the manufacturer’s charts or tabulations, as directed.

•

Make Make at least least 2 cove coverag rage e with with the the proof proof roller roller machi machine ne within the width of the main carriageway.

•

•

Offset each trip of the roller by at most 1 tire width.

Operate Operate proof rolling rolling machine machine at a speed speed between between 8-10 kilometres per hour or as directed by the S.O.

•

Rev. Rev.00 00 Page Page 1

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PROJEK LEBUHRAYA PANTAI TIMUR FASA 2, TERENGGANU PAKEJ 1A : DARI CH.0.00 KE CH.3750 JABATAN KERJA RAYA PASUKAN PROJEK LPT FASA 2

Ref No.

METHOD STATEMENT

Q-BENA RESOURCES SDN BHD

Date :

Title:

QBR/MS/PW/0212/02

MainContractor.

PROOF ROLLING CH 0.00 – CH 3750

07-02-2012

Proof rolling shall be carried out with proof rolling machine that have a weight of 50 tonnes. Tires shall be inflation pressures in between 0.5 N/mm² to 0.7 N/mm². •

Operate proof rolling machine in longitudinal direction and from lower to the higher edge. •

 The different settlement shall be measured with a long straight edge with the length similar to the width of the proof  rolling machine. •

If areas of subgrade upon proof rolling are found to be weak and/or fail, the area shall be demarcate and to be excavated to the depth of 600 mm and recompacted to required compaction by performing in situ CBR. •

3. EQUIPMENT

Proof Rolling Machine - 1 No Pneumatic Tyre Rollers -1 No Steel Wheel Tandem Roller - 1 No  Tip truck - 1 No Power Broom - 1 No Motor grader - 1 No Back Pusher - 1 No

4. MANPOWER

Rev.00 Page 2

Supervisor

- 1 person

General Worker

- 1 person

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PROJEK LEBUHRAYA PANTAI TIMUR FASA 2, TERENGGANU PAKEJ 1A : DARI CH.0.00 KE CH.3750 JABATAN KERJA RAYA PASUKAN PROJEK LPT FASA 2

Ref No.

METHOD STATEMENT PROOF ROLLING CH 0.00 – CH 3750

Machine Operator

- 6 persons

5. RELEVANT DRAWING

KPKR/J/R/130507 (LPT2)/1A/KL1A - KL34A

6. RELEVANT FORM

Request for Inspection Form  JKR SPK form 7. RELEVANT SPECIFICATION IN ACCORDANCE TO  JKR/SPJ/2008-S4

Rev.00 Page 3

of 3

Q-BENA RESOURCES SDN BHD

Date :

Title:

QBR/MS/PW/0212/02

MainContractor.

07-02-2012