Transcript Binder Distributors Task Team Feedback

Binder
Distributors Task
Team Feedback
Progress since May
• Resolution #7
– To review the process of binder distributor
certification as fit for purpose & investigate
scope of a system for self regulation
• Met twice since last RPF
– Hosted Australian study tour on seals
– Representatives from all Provincial DoT’s and
some Municipalities
– TMH 2 sub committee
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Calibration
committee
Barry Dumas PAWC
Karl Arnold FSPA
Theuns Lewis Gautrans
Mias Wiese SANRAL
Jacques Myburgh Tosas
Devah Naidu Colas
Owen Single Spray Pave
Trevor Frost Strocam
Update on previous
recommendations
• Feedback on implementation:
– 12 month calibration certificate validity period
– Reduce minimum lot size to 1,500 litres for
assessing spray rates
– Update Sabita Manual 8 on safe handling of
binders to incorporate Austroads experience
– Modify ‘bakkie’ test method to incorporate
tolerance limits for adjacent ‘bakkies’
Tolerance for adjacent
‘bakkies’
10
% deviation
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0
-5
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-10
-15
trough number
10 11 12 13 14
Normal readings and stepped readings
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70
Way forward
Volumetric Reading
• Publishing of recommendations:
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– ‘Bakkie’ test method on CSIR website
– Drafting interim guideline (TG 3) to incorporate
recommendations until COLTO reactivated
• Develop computer programme to correlate
fix pit transverse distribution with ‘Bakkie’
55
test
50 • Develop on-site carpet test for high profile
projects
45 • Develop a new frame work for Distributor
Tray
Calibration
Customer’s Requirements
Category 1:
Major projects
Process control & Quality Assessment
High
quality
product
Category 2:
Minor projects
No Quality Assessment
Standard
quality
product
The
South African
Model
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CONTENTS
Introduction
Mechanical requirements
Calibration procedure
Calibration test certificate
Operator training requirements
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INTRODUCTION
Vehicle roadworthiness
Authorized to transport hazardous material
Mechanical & functional compliance of distributor
Certification of all measuring / indicator devices
Start-up checklist (prior spraying)
Distributor operator qualification / certification
Health and safety
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MECHANICAL
REQUIREMENTS
• Main engine and / or pump engine to be certified
operationally in good condition by a certified mechanic.
• Tyre pressures prior spraying
• Dipstick (volume indicator) condition
• Heaters type & capacity required as well as condition
• Thermometers as well as pressure gauges
• Road speed control
• Circulation and output operational condition
• Pump and drive mechanism functioning
• Spraybar condition and position adjustment
• Opening and closing of spraybar system
• Nozzles type and condition
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CALIBRATION
PROCEDURES
General performance requirements
Calibration test methods
Procedure
Functions to be calibrated or certified:
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Pump output
Thermometers
Dipstick (volume indicator)
Road speed indicator (instrumental)
Road speed indicator (operational)
Pressure gauges
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CALIBRATION
TEST CERTIFICATE
Accredited Testing Depot
Distributor Certificate validity period
Certificate distribution
National Distributor Certification
Registrar
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OPERATOR TRAINING
REQUIREMENTS
Types of bitumen distributors
Types of bituminous binders
Spray specifications
Determination of spray quantities
Road speed control function & operation
Spray related mechanical function of distributor
Specifications required for distributor calibration
certificate
• Safety aspects of handling bituminous products
• Maintenance procedures of functional components of a
distributor
• Examination & certificate
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NATIONAL BITUMEN
DISTRIBUTOR CALIBRATION
SYSTEM
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NATIONAL BITUMEN
DISTRIBUTOR CALIBRATION
SYSTEM
National Calibration
Body ( COTO )
National Calibration
Service Provider ( R.P.F. )
National Accreditation
Body (SANAS)
Accredited Distributor
Calibration Center
Bitumen Distributor
Contractor (1)
Bitumen Distributor
Contractor (2)
Client
Bitumen Distributor
Contractor (n)
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NATIONAL
CALIBRATION BODY
• Provide funds for implementing the system.
• Afterwards - the system must be
financially self sustainable – generating own
funds.
• Provide National policies.
• Provide National specifications.
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NATIONAL CALIBRATION
SERVICE PROVIDER
Provider responsible for:
• Specifications and Standards guide lines.
• Process control procedures.
• Process control test methods.
• Specifications and standards criteria.
• Maintaining an calibration certification info database.
• Providing and maintaining a calibration computer program
• Providing information to client
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Accredited Bitumen Distributor
Calibration Center
• Must be accredited and certified as testing center.
• Carry out bitumen distributor calibration compliance
inspection .
• Carry out the required calibration test methods.
• Provide calibration reports.
• Provide calibration certificates.
• Provide National Service Provider with required info.