NZQA registered unit standard
20445 version 2
Page 1 of 5
Title
Demonstrate knowledge of asphalt production plants
Level
4
Purpose
Credits
10
This unit standard is for people who need a technical
understanding of how asphalt production plants operate, such
as plant operators and asphalt mix designers.
People credited with this unit standard are able to: demonstrate
general knowledge of asphalt production plants; describe
material handling equipment and processes of an asphalt
production plant; describe heating and mixing equipment and
processes at an asphalt production plant; describe asphalt
transfer, hot storage, and loadout equipment and processes;
and demonstrate knowledge of health and safety hazards and
adverse effects on the environment associated with asphalt
production plants and describe requirements for their control.
Classification
Pavement Surfacing > Asphalt Surfacing
Available grade
Achieved
Explanatory notes
1
The following legislation and requirements apply to this unit standard, and must be
complied with:
Health and Safety in Employment Act 1992;
Hazardous Substances and New Organisms Act 1996;
Health and Safety in Employment Regulations 1995;
Health and Safety in Employment (Prescribed Matters) Regulations 2003;
Resource Management Act 1991;
Hot Work on Tanks and Drums, Occupational Health and Safety Service, available at
http://www.osh.govt.nz;
Confined Spaces: Planning Entry and Working Safely in a Confined Space,
Occupational Health and Safety Service, available at http://www.osh.govt.nz;
The Safe Handling of Bituminous Materials Used in Roading – Code of Practice RNZ
9904:2006, Roading New Zealand, available for purchase at
http://www.roadingnz.org.nz;
Safety management plans.
Any legislation or other requirements superseding any of the above will apply,
pending the review of this unit standard.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20445 version 2
Page 2 of 5
2
For Outcome 1, a general understanding of the two types of asphalt production plant
is required. For all other Outcomes, detailed knowledge of the operating manuals
and company procedures for at least one plant, either batch mix or drum mix, is
required.
3
Assessment against this unit standard must be based on evidence from a workplace
context.
4
Definitions
Binder means any bituminous or modified bituminous binder.
Company procedures refers to all documented policies, procedures and
methodologies of the candidate’s employer at the time of training including but not
limited to those relating to health, safety, environment, quality and operations.
Outcomes and evidence requirements
Outcome 1
Demonstrate general knowledge of asphalt production plants.
Range
hot binder storage, cold aggregate bins, cold aggregate metering and feed
equipment, binder pumping and metering equipment, mineral filler storage and
feed equipment, special additive feed equipment, burner, dryer and mixing
drum, cyclones, wet scrubber or baghouse, exhaust stack, product transfer and
hot storage equipment;
where applicable – filler collector, filler feed, hot aggregate elevator, screening
unit, hot aggregate storage bins, weigh box, pugmill.
Evidence requirements
1.1
Batch plants are described in terms of their components and processes.
1.2
Drum mix plants are described in terms of their components and processes.
Outcome 2
Describe material handling equipment and processes of an asphalt production plant.
Evidence requirements
2.1
Aggregate handling equipment and processes, and stockpile management are
described in accordance with company procedures.
Range
2.2
equipment includes but is not limited to – cold feed bins, metering
systems;
processes include but are not limited to – bin loading, aggregate
feeding.
Binder storage, heating, pumping, and metering equipment and processes are
described in accordance with company procedures.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
2.3
20445 version 2
Page 3 of 5
Filler and additive storage, metering, and feeding equipment and processes are
described in accordance with company procedures.
Range
additives include but are not limited to – binder modifiers,
adhesion agent, diluents, emulsions, fibres, recycled asphalt
pavement.
Outcome 3
Describe heating and mixing equipment and processes at an asphalt production plant.
Evidence requirements
3.1
Material drying and heating systems and processes are described in
accordance with company procedures.
Range
3.2
Material mixing systems and processes are described.
Range
3.3
burner, dryer.
binder addition, aggregate addition;
batch plant equipment includes – hot aggregate elevator, screens,
hot aggregate storage, hot aggregate measuring system, weigh
hopper, bitumen meter, additive meter, pugmill;
drum mix plant equipment includes – mixing flights or lifters.
Safety protection of heating and mixing processes are described in accordance
with company procedures.
Range
purge cycles, dust collection, discharge.
Outcome 4
Describe asphalt transfer, hot storage, and loadout equipment and processes.
Evidence requirements
4.1
Product transfer systems are described in terms of types and function.
4.2
Asphalt storage systems are described in terms of function, segregation control,
and storage time.
4.3
Asphalt loadout systems are described in terms of operation and control.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20445 version 2
Page 4 of 5
Outcome 5
Demonstrate knowledge of health and safety hazards and adverse effects on the
environment associated with asphalt production plants and describe requirements for their
control.
Evidence requirements
5.1
Health and safety hazards are identified and the procedures and equipment to
control and monitor them are described in accordance with company
procedures, and legislation.
Range
5.2
health hazard control measures include – knowledge of plant
health and safety management plan.
safety hazard control measures include – knowledge of plant
health and safety management plan, hazard management plan,
and emergency response plan.
Adverse effects on the environment are identified and the procedures and
equipment to control and monitor them are described in accordance with
company procedures and legislation.
Range
includes but is not limited to – atmospheric emissions, ground
contamination, water contamination.
5.3
Personal protective equipment is described in terms of supply, training, and
compliance monitoring.
5.4
First aid equipment is described in terms of requirements for asphalt production
plants.
Range
5.5
includes but is not limited to – location, procedures.
Fire-fighting equipment is described in terms of location, suitability for types of
fire likely at asphalt production plants, and use.
Range
fire types include but are not limited to – bitumen, petroleum
product, plant fuel, electrical, dryer, mixing drum, building;
5.6
Accidents are described in terms of reporting procedures, investigation, and
corrective actions.
5.7
Procedures for plant servicing, repairs, and maintenance are outlined and
suitable safety equipment is identified.
Range
5.8
procedures include but are not limited to – isolation, lockout,
tagout.
Requirements for control in confined space entry, hotwork, working at height
and notifiable works in accordance with company procedures, codes of practice
and legislation are explained.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
20445 version 2
Page 5 of 5
Replacement information
This unit standard replaced unit standard 13512.
Planned review date
31 December 2016
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
27 October 2005
31 December 2013
Review
2
15 March 2012
N/A
Consent and Moderation Requirements (CMR) reference
0101
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact Infrastructure ITO askus@infratrain.co.nz if you wish to suggest changes to
the content of this unit standard.
Infrastructure ITO
SSB Code 101813
 New Zealand Qualifications Authority 2016