2013-3 Drum Mix Plant Checklist

PINDAAN 3/2013 1

ASPHALT PLANT CHECKLIST (DRUM MIX) Asphalt Plant

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Date

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No.

ACTIVITIES

BITUMEN, AGGREGATES, MIX DESIGN & LAB EQUIPMENT 1

PAST RECORDS ● Aggregate approval/test results. ● Bitumen approval/test results. ● Mix design approval (including trial lay). ● Binder content, aggregate gradation & Marshall test results. Satu (1) ujian setiap 200 tan asphalt.

2

BITUMEN ● Source of bitumen approved.

M

3

Bitumen diuji sepenuhnya di ‘independent lab’ berdasarkan MS 124 dan semua keputusan ujian ‘lulus’.

AGGREGATES ● Source of coarse aggregate approved.

M

Agregat kasar diuji sepenuhnya di ‘independent lab’ berdasarkan JKR/SPJ/1988 atau JKR/SPJ/2008 dan semua keputusan ujian ‘lulus’.

● Source of fine aggregate approved. M

Agregat halus diuji sepenuhnya di ‘independent lab’ berdasarkan JKR/SPJ/1988 atau JKR/SPJ/2008 dan semua keputusan ujian ‘lulus’.

M

● Each aggregate is stored in a separate stockpile.

M

● Stockpile of fine aggregate is kept under a waterproof roof structure.

4

MIX DESIGN ● Mix design prepared and approved by KPPS/JD.

M

Laporan rekabentuk campuran hendaklah disertakan dengan kelulusan bitumen dan agregat di atas.

5

LABORATORY TEST EQUIPMENT

M

● Is a laboratory available?

M

● Is the laboratory capable to carry out the following tests?  Bitumen content.

M

 Aggregate gradation.

M

 Thickness.

M

 Density.

M

● Equipped with the following laboratory test equipment;  Penetration.

M

 Ring & Ball Softening Point.

M

 Flash Point.

YES

NO

PINDAAN 3/2013 2

No.

ACTIVITIES ● Equipped with laboratory test equipment to determine binder content of bituminous tack coat (i.e. grade of tack coat).

M

Kuari mestilah menyediakan tiga (3) beaker berisipadu 1 liter (low form) dan tiga (3) glass rod selain oven dan balance walaupun tidak membekalkan tack coat dan menjalankan kerja paving.

M

● Have laboratory test equipment been checked and certified/calibrated (annually)?  Date checked ………….  Certified by …………….  Is copy of certification/calibration available?

6

QC SYSTEM ● QC system is available. ● Competent quality officer is available.

PLANT OPERATIONS 7

COLD FEED BINS ● Cold feed system shall consist of not less than 5 bins with suitable capacity.

M

● Each aggregate is stored in a separate cold bin.

M

● No spill over of aggregates into adjacent bins. ● Each bin is equipped with a control gate and measuring feeder for accurate blending of aggregates on to cold feed collecting conveyor. ● Cold feed system shall incorporate a device for moisture compensation capable of producing an accurate and continuous blend of aggregates from the cold feed bins. ● Separate dry storage is provided for mineral filler.

M

● Equipped with a screen of size ≤ 50 mm to discard oversized aggregates before entering the drum mixer.

8

DRUM MIXER ● Drum mixer shall be inclined, oil-fired and sufficiently insulated. ● Samples of aggregates can be obtained before entering the drum mixer eg. from the link conveyor. ● Fresh mixed asphalt is delivered and stored in a surge silo through a proper conveyor system.

9

M M

PLANT SETTING ● Computer able to display details of mixing proportion (and flow rate) according to approved mix design, and mix temperatures. ● The accuracy of aggregates, filler and bitumen flow rates have been checked and verified. ● Print out of recent mix production (< 1 month) which shows the aggregates, filler and bitumen tonnages is available. ● The accuracy of the plant setting as displayed on the computer screen have been checked and verified.

YES

NO

PINDAAN 3/2013 3

No.

ACTIVITIES

10

YES

NO

BITUMEN STORAGE TANK ● Have means of indicating the volume of bitumen at all times. ● Have means of drawing off samples. ● Provides for continuous circulation of hot bitumen through the bitumen feeding system and back into the bitumen storage tank. ● The end of the return line discharging into the bitumen storage tank shall be kept submerged in the bitumen to prevent oxidation of the returning hot bitumen. ● A thermometer is fitted to the bitumen storage tank or bitumen feed line. ● Have thermometers been checked and certified/calibrated (annually)?  Date checked ………….  Certified by …………….  Is copy of certification/calibration available? ● Bitumen storage tank and bitumen feeding system are equipped with heating system and insulating jackets.

M

M

M

11

LORRY TRANPORTER SCALES

M

● Has weigh bridge been checked and certified/calibrated (annually)?  Date checked ………….  Certified by …………….  Is copy of certification/calibration available?

Note: M – Mandatory Remarks:……………………………………………………………………………………………… ……………………………………………………………………………………..……..…………….. ………………………………………………………………………………………………………….

Is the plant qualified to produce asphalt for use in JKR paving works? YES

NO

Nota: i) YES – semua item mandatori DIPATUHI dan minimum 50% daripada item bukan mandatori LULUS. ii) NO – mana-mana item mandatori TIDAK DIPATUHI atau minimum 50% daripada item bukan mandatori GAGAL.

Auditor:

Auditee:

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(Name: …………………………………) (Organisation: …………………………) Head of Audit Team

(Name: …………………………………) (Organisation: …………………………)

PINDAAN 3/2013 4 The Members of Audit Team 1.

Name: ……………………………………….. Organisation: …………………………….....

2.

Name: ……………………………………….. Organisation: ………………………………..

3.

Name: ……………………………………….. Organisation: ………………………………..

4.

Name: ……………………………………….. Organisation: ………………………………..

5.

Name: ……………………………………….. Organisation: ………………………………..