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

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’

Way forward Publishing of recommendations: –‘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’ test Develop on-site carpet test for high profile projects Develop a new frame work for Distributor Calibration

Customer’s Requirements Category 1: Major projects Process control & Quality Assessment Category 2: Minor projects No Quality Assessment High quality product Standard quality product

The South African Model

S.A. Model CONTENTS Introduction Mechanical requirements Calibration procedure Calibration test certificate Operator training requirements

S.A. Model 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

S.A. Model 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

S.A. Model CALIBRATION PROCEDURES General performance requirements Calibration test methods Procedure Functions to be calibrated or certified: –Pump output –Thermometers –Dipstick (volume indicator) –Road speed indicator (instrumental) –Road speed indicator (operational) –Pressure gauges

S.A. Model CALIBRATION TEST CERTIFICATE Accredited Testing Depot Distributor Certificate validity period Certificate distribution National Distributor Certification Registrar

S.A. Model 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

S.A. Model NATIONAL BITUMEN DISTRIBUTOR CALIBRATION SYSTEM

S.A. Model NATIONAL BITUMEN DISTRIBUTOR CALIBRATION SYSTEM National Calibration Body ( COTO ) National Calibration Service Provider ( R.P.F. ) Accredited Distributor Calibration Center Bitumen Distributor Contractor (1) Bitumen Distributor Contractor (2) Bitumen Distributor Contractor (n) National Accreditation Body (SANAS) Client

S.A. Model 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. Provide funds for implementing the system. Afterwards - the system must be financially self sustainable – generating own funds. Provide National policies. Provide National specifications.

S.A. Model NATIONAL CALIBRATION SERVICE PROVIDER 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 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 Provider responsible for:

S.A. Model 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. 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.