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Unit of competency details

PMC552007 - Heat accelerate the curing of precast concrete (Release 1)

Summary

Usage recommendation:
Superseded
Mapping:
MappingNotesDate
Is superseded by and equivalent to MSMPMC305 - Heat accelerate the curing of precast concrete 21/Oct/2018
Supersedes and is equivalent to PMC552007B - Heat accelerate the curing of precast concreteSupersedes and is equivalent to PMC552007B Heat accelerate the curing of precast concrete. 21/Jun/2016

Releases:
ReleaseRelease date
1 1 (this release) 22/Jun/2016


Classifications

SchemeCodeClassification value
ASCED Module/Unit of Competency Field of Education Identifier 030717 Plant And Machine Operations  

Classification history

SchemeCodeClassification valueStart dateEnd date
ASCED Module/Unit of Competency Field of Education Identifier 030717 Plant And Machine Operations  14/Oct/2016 
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Unit of competency

Modification History

Release 1. Supersedes and is equivalent to PMC552007B Heat accelerate the curing of precast concrete.

Application

This unit of competency covers the skills and knowledge required to operate steam curing equipment and ancillary equipment that is integral to the process in order to accelerate the curing of precast concrete.

This unit of competency applies to operators who are required to prepare the equipment, load and discharge moulds/products, monitor and adjust the equipment and rectify routine problems.

This unit of competency applies to an individual working alone or as part of a team or group and working in liaison with other shift team members, team leader and supervisor, as appropriate.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

Pre-requisite Unit

Nil

Competency Field

Operations

Unit Sector

Not applicable

Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare the equipment for production 

1.1

Conduct equipment pre-start procedures and visual checks according to enterprise procedures

1.2

Set up and configure equipment start-up function in accordance with procedures/work instructions

1.3

Ensure appropriate presetting period has been observed

1.4

Load mould (containing green concrete product) onto transfer car and move to steam chamber in accordance with procedures/work instructions

1.5

Cover mould as specified

1.6

Close and secure the steam chamber in accordance with procedures/work instructions

2

Operate equipment 

2.1

Start up equipment in accordance with procedures/work instructions

2.2

Ensure equipment is operated in accordance with established enterprise procedures

3

Monitor and record operation 

3.1

Monitor equipment performance in accordance with work instructions and manufacturer specifications

3.2

Monitor operating pressures and temperatures

3.3

Ensure the rate at which the concrete temperature increases is even, and that it doesn't exceed maximum temperature specified

3.4

Adjust and control equipment to ensure correct product quality

3.5

Complete appropriate records and logs

4

Rectify routine problems 

4.1

Identify the range of faults that can occur during the operation

4.2

Determine and rectify fault causes by procedures/work instructions

4.3

Identify and rectify equipment failure causes in accordance with procedures/work instructions

4.4

Ensure appropriate records and log books of equipment operations are maintained to meet procedures/work instructions

4.5

Identify non-routine problems and report to designated person

5

Shut down equipment 

5.1

Shut down steam and depressurise chamber in accordance with work instructions

5.2

Allow product to cool gradually and evenly

5.3

Open the chamber and discharge cured product

5.4

Complete appropriate records and logs

5.5

Ensure transfer cars are clear of all product and left ready for reuse

5.6

Shut down equipment in an emergency situation

6

Prepare equipment for maintenance 

6.1

Isolate equipment in accordance with work instructions

6.2

Remove any broken materials safely

6.3

Make sure area is clear and safe for maintenance

7

Control hazards 

7.1

Identify hazards from the job to be done

7.2

Identify other hazards in the work area

7.3

Assess the risks arising from those hazards

7.4

Implement measures to control those risks in line with procedures

Foundation Skills

This section describes those required skills (language, literacy and numeracy) that are essential to performance.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range of Conditions

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Regulatory framework 

The latest version of all legislation, regulations, industry codes of practice and Australian/international standards, or the version specified by the local regulatory authority, must be used.

Applicable legislation, regulations, standards and codes of practice include:

  • health, safety and environmental (HSE) legislation, regulations and codes of practice relevant to the workplace, equipment and production processes and hazardous materials
  • Australian/international standards relevant to the materials being used and products being made
  • any relevant licence and certification requirements.

All operations to which this unit applies are subject to stringent HSE requirements, which may be imposed through state/territory or federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and such requirements the legislative requirements take precedence.

Procedures 

All operations must be performed in accordance with relevant procedures.

Procedures are written, verbal, visual, computer-based or in some other form, and include one or any combination of:

  • job cards
  • emergency procedures
  • work instructions
  • standard operating procedures (SOPs)
  • safe work method statements (SWMS)
  • formulas/recipes
  • batch sheets
  • temporary instructions
  • any similar instructions provided for the smooth running of the plant.

Tools and equipment 

Tools and equipment include:

  • steam chamber which may be:
  • purpose built, low pressure steam chamber
  • an autoclave (high or low pressure)
  • temporary means of retaining low pressure steam near the curing concrete product (e.g. tarpaulin cover)
  • ancillary equipment that is integral to the process
  • programmable logic controllers (PLC), if fitted
  • pressure/temperature measuring and/or recording equipment
  • transfer cars
  • relevant personal protective equipment (PPE).

Problems 

Routine problems must be resolved by applying known solutions.

Routine problems are predictable and include one or more of:

  • equipment malfunctions
  • temperature or pressure fluctuations
  • product quality variations
  • material/feed variations
  • chamber pressure losses.

Known solutions are drawn from one or more of:

  • procedures
  • training
  • remembered experience.

Non-routine problems must be reported according to according to relevant procedures.

Hazards 

Hazards must be identified and controlled. Identifying hazards requires consideration of:

  • high temperatures
  • smoke, dust, vapours or other atmospheric hazards
  • weight, shape, volume of materials to be handled
  • hazardous products and materials
  • sharp edges, protrusions or obstructions
  • slippery surfaces, spills or leaks
  • electricity
  • gas
  • gases and liquids under pressure
  • noise
  • rotational equipment or vibration
  • plant services (steam, condensate, cooling water, etc)
  • structural hazards
  • equipment failures
  • machinery, equipment and product mass
  • limited head spaces or overhangs
  • working at heights
  • working in restricted or confined spaces
  • other hazards that might arise.

Records and reports 

Records include one or more of:

  • log books/sheets
  • electronic records
  • job/work sheets
  • other records used for the smooth running of the plant.

Reports include one or more of:

  • paper or electronic-based logs and reports
  • verbal/radio reports
  • reporting items found which require action.

Unit Mapping Information

Release 1. Supersedes and is equivalent to PMC552007B Heat accelerate the curing of precast concrete.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=45a7f1d5-61a5-447a-9688-7abbd7e1a5c7

 

Assessment requirements

Modification History

Release 1. Supersedes and is equivalent to PMC552007B Heat accelerate the curing of precast concrete.

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria and demonstrate the ability to:

  • set up, configure and operate the steam curing equipment according to procedures
  • prepare materials/products to meet job specifications
  • monitor and adjust the equipment to meet product quality and production output specifications
  • load and discharge products into/from the steam chamber
  • shut down equipment in normal and abnormal circumstances
  • identify hazards and apply relevant hazard controls
  • apply safety procedures
  • recognise out-of-specification products, process problems and materials faults
  • recognise routine and non-routine problems
  • identify when the operator is able to rectify problems, when assistance is required and who is the appropriate source for assistance
  • take action to resolve problems or report them to appropriate personnel
  • distinguish between possible causes of routine problems, including:
  • steam pressure differentials
  • time cycle irregularities
  • raw material variations
  • mechanical abnormalities
  • electrical/instrument reading failure
  • communicate effectively with team/work group and supervisors
  • read and interpret product specifications, job sheets, procedures, material labels and safety information
  • complete workplace records
  • do basic arithmetical manipulations, including additions, subtractions, divisions, fractions and percentages

Knowledge Evidence

Must provide evidence that demonstrates knowledge relevant to their job sufficient to operate under routine only supervision and to solve routine problems, including knowledge of:

  • principles of heat curing process
  • functions, limitations and principles of operation of steam chamber and equipment
  • composition and nature of finished product
  • basic physics and where appropriate chemistry relevant to the equipment/process
  • the potential effects of variations in raw materials and equipment operation in relation to quality of product/output
  • factors which may affect product quality or production output and appropriate remedies
  • routine problems, their probable causes and relevant corrective actions
  • start-up and shutdown processes
  • sequence of isolation procedures and related hazards
  • signals and alarms
  • enterprise production schedules
  • organisation procedures relevant to the work environment/job role
  • hierarchy of control
  • hazards that may arise in the job/work environment and:
  • their possible causes
  • potential consequences
  • appropriate risk controls.

Assessment Conditions

  • The unit should be assessed holistically and the judgement of competence shall be based on a holistic assessment of the evidence.
  • In all plants it may be appropriate to assess this unit concurrently with units such as:
  • teamwork
  • communication.
  • The collection of performance evidence:
  • should occur over a range of situations which include typical disruptions to normal, smooth operation of an operating plant
  • will typically include a supervisor/third-party report or other evidence, focussing on consistent performance and problem recognition and solving. A supervisor/third-party report must be prepared by someone who has a direct, relevant, current relationship with the person being assessed and who is in a position to form a judgement on workplace performance relevant to the unit of competency
  • must include the use of an appropriate industrial item/s of equipment requiring demonstration of operation, start-up and shutdown procedures and responding to problems
  • may use industry-based simulation for all or part of the unit particularly where safety, lack of opportunity or significant cost is an issue.
  • Assessment should occur in operational workplace situations. Where this is not possible or where personal safety or environmental damage are limiting factors assessment must occur in a sufficiently rigorous simulated environment that reflects realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills.
  • Assessment in a simulated environment should use evidence collected from demonstration of skills and one or more of:
  • walk-throughs
  • pilot plant operation
  • industry-based case studies/scenarios
  • ‘what ifs’.
  • Knowledge evidence may be collected concurrently with performance evidence (provided a record is kept) or through an independent process such as workbooks, written assessments or interviews (provided a record is kept).
  • Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.
  • Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications associated with this unit.
  • The regulatory framework will be reflected in workplace policies and procedures and is not required to be independently assessed.
  • Foundation skills are integral to competent performance of the unit and should not be assessed separately.
  • Assessors must satisfy the assessor competency requirements that are in place at the time of the assessment as set by the VET regulator.
  • In addition the assessor or anyone acting in subject matter expert role in assessment shall demonstrate both technical competency and currency. If the assessor cannot demonstrate technical competency and currency they shall assess with a subject matter expert who does meet these requirements.
  • Technical competence can be demonstrated through one or more of:
  • relevant VET or other qualification/Statement of Attainment
  • appropriate workplace experience undertaking the type of work being assessed under routine and non-routine conditions
  • appropriate workplace experience supervising/evaluating the type of work being assessed under routine and non-routine conditions
  • Currency can be demonstrated through one or more of:
  • being currently employed undertaking the type of work being assessed
  • being employed by the organisation undertaking the type of work being assessed and having maintained currency in accordance with that organisation’s policies and procedures
  • having consulted/had contact with an organisation undertaking the type of work being assessed within the last twelve months, the consultation/contact being related to assessment
  • conducting on the job training/assessments of the type of work being assessed
  • being an active member of a relevant professional body and participating in activities relevant to the assessment of this type of work.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=45a7f1d5-61a5-447a-9688-7abbd7e1a5c7