Assessor Resource

PMC552094
Prepare for and apply shotcrete for installation

Assessment tool

Version 1.0
Issue Date: May 2024


This unit of competency covers the skills and knowledge required to prepare for and apply shotcrete refractory installation. Shotcrete is the generic term used to describe the placement of cementitious products, such as concrete or refractory monolithics, by high volume and high velocity air. It is also known as guniting.

This unit of competency applies to installation with shotcrete alone and with shotcrete that needs to join to brick/block, moulded or cast refractory. The refractory may be applied by wet or dry processes.

This unit of competency applies to operators who are required to prepare for and apply shotcreting to procedures and specifications, mix the shotcrete, correct any deficiencies in the quality of work and identify and take action on any 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.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Elements describe the essential outcomes.

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

1

Establish the suitability of resources

1.1

Check all information conforms with resources

1.2

Record discrepancies in information

1.3

Report any inaccuracies in information to the person in charge

1.4

Identify and select materials, components, tools and equipment

2

Apply shotcrete to prepared surface

2.1

Prepare backgrounds, cutting out, demolition and keying

2.2

Mix shotcrete

2.3

Assemble and operate shotcreting equipment

2.4

Apply shotcrete

2.5

Remove and reinstate damaged shotcrete material

2.6

Maintain tools and equipment

3

Contribute to controlling hazards in work area

3.1

Identify hazards in work area

3.2

Assess risks arising from those hazards

3.3

Take appropriate action to control risks to procedures and duty of care

4

Respond to problems

4.1

Identify possible problems in equipment or process

4.2

Determine problems needing action

4.3

Determine possible fault causes

4.4

Rectify problem using appropriate solution within area of responsibility

4.5

Follow through items initiated until final resolution has occurred

4.6

Report problems outside area of responsibility to designated person

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:

read and interpret manufacturer's technical information, job sheets, procedures, material labels and safety information

confirm information/procedures are available and conform with resources

identify and select materials, components, tools and equipment

use and maintain tools and equipment

mix and apply shotcrete to achieve required specifications

monitor key variables, including:

uniformity and thickness of course

consistency of mix

correct compaction

conforming to required curves and angles

adhesion to surface

tying to structure

keying to existing refractory

cutting requirements

support requirements

monitor installation integrity and conformance to specification and make adjustments to meet specifications

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:

raw material variations

equipment faults/abnormalities

process/procedure errors

identify hazards and apply relevant hazard controls

apply safety procedures

communicate effectively with team/work group and supervisors

complete workplace records

do basic arithmetical manipulations, including additions, subtractions, divisions, fractions and percentages.

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:

types, uses and operation of shotcreting equipment

types and characteristics of shotcreting materials

methods of mixing and applying shotcreting materials

methods of avoiding lamination of applied shotcreting materials

methods of protecting applied shotcreting material during application and curing

types and methods of finishing the surface of the shotcrete

methods of curing shotcrete

types and characteristics of background surfaces and their preparation methods

types, uses and operation of tools and equipment

methods of preparing background surfaces

types, uses and operation of tools and equipment

reasons for, and timing of, dedicated curing and heat-up programs and the consequences of the installed concrete if the program is not correctly followed

types and uses of temporary support/formwork

methods of protecting work during installation

reasons for, and methods of, providing test panels

methods of cutting

safeguards to take during reinstatement

methods of removing damaged refractory

methods of keying and bonding new to existing refractories

reasons for, and methods of, obtaining seals between new and existing refractory

routine problems, their probable causes and relevant corrective actions

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.

The unit should be assessed holistically and the judgement of competence shall be based on a holistic assessment of the evidence.

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, focusing 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.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Elements describe the essential outcomes.

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

1

Establish the suitability of resources

1.1

Check all information conforms with resources

1.2

Record discrepancies in information

1.3

Report any inaccuracies in information to the person in charge

1.4

Identify and select materials, components, tools and equipment

2

Apply shotcrete to prepared surface

2.1

Prepare backgrounds, cutting out, demolition and keying

2.2

Mix shotcrete

2.3

Assemble and operate shotcreting equipment

2.4

Apply shotcrete

2.5

Remove and reinstate damaged shotcrete material

2.6

Maintain tools and equipment

3

Contribute to controlling hazards in work area

3.1

Identify hazards in work area

3.2

Assess risks arising from those hazards

3.3

Take appropriate action to control risks to procedures and duty of care

4

Respond to problems

4.1

Identify possible problems in equipment or process

4.2

Determine problems needing action

4.3

Determine possible fault causes

4.4

Rectify problem using appropriate solution within area of responsibility

4.5

Follow through items initiated until final resolution has occurred

4.6

Report problems outside area of responsibility to designated person

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:

manufacturer's technical information

job cards

drawings

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.

Problems

Routine problems must be resolved by applying known solutions.

Routine problems are predictable and include one or more of:

damaged/worn tools/equipment

incorrect tools/equipment for job

incorrect/incomplete information for job

variations in materials

preparation problems.

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.

Tools and equipment

Tools and equipment include:

mixing equipment

air compressors

water addition equipment

gunning equipment/nozzles

equipment allowing access.

Hazards

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

heat, 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.

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:

read and interpret manufacturer's technical information, job sheets, procedures, material labels and safety information

confirm information/procedures are available and conform with resources

identify and select materials, components, tools and equipment

use and maintain tools and equipment

mix and apply shotcrete to achieve required specifications

monitor key variables, including:

uniformity and thickness of course

consistency of mix

correct compaction

conforming to required curves and angles

adhesion to surface

tying to structure

keying to existing refractory

cutting requirements

support requirements

monitor installation integrity and conformance to specification and make adjustments to meet specifications

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:

raw material variations

equipment faults/abnormalities

process/procedure errors

identify hazards and apply relevant hazard controls

apply safety procedures

communicate effectively with team/work group and supervisors

complete workplace records

do basic arithmetical manipulations, including additions, subtractions, divisions, fractions and percentages.

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:

types, uses and operation of shotcreting equipment

types and characteristics of shotcreting materials

methods of mixing and applying shotcreting materials

methods of avoiding lamination of applied shotcreting materials

methods of protecting applied shotcreting material during application and curing

types and methods of finishing the surface of the shotcrete

methods of curing shotcrete

types and characteristics of background surfaces and their preparation methods

types, uses and operation of tools and equipment

methods of preparing background surfaces

types, uses and operation of tools and equipment

reasons for, and timing of, dedicated curing and heat-up programs and the consequences of the installed concrete if the program is not correctly followed

types and uses of temporary support/formwork

methods of protecting work during installation

reasons for, and methods of, providing test panels

methods of cutting

safeguards to take during reinstatement

methods of removing damaged refractory

methods of keying and bonding new to existing refractories

reasons for, and methods of, obtaining seals between new and existing refractory

routine problems, their probable causes and relevant corrective actions

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.

The unit should be assessed holistically and the judgement of competence shall be based on a holistic assessment of the evidence.

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, focusing 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.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Check all information conforms with resources 
Record discrepancies in information 
Report any inaccuracies in information to the person in charge 
Identify and select materials, components, tools and equipment 
Prepare backgrounds, cutting out, demolition and keying 
Mix shotcrete 
Assemble and operate shotcreting equipment 
Apply shotcrete 
Remove and reinstate damaged shotcrete material 
Maintain tools and equipment 
Identify hazards in work area 
Assess risks arising from those hazards 
Take appropriate action to control risks to procedures and duty of care 
Identify possible problems in equipment or process 
Determine problems needing action 
Determine possible fault causes 
Rectify problem using appropriate solution within area of responsibility 
Follow through items initiated until final resolution has occurred 
Report problems outside area of responsibility to designated person 

Forms

Assessment Cover Sheet

PMC552094 - Prepare for and apply shotcrete for installation
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

PMC552094 - Prepare for and apply shotcrete for installation

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: