Assessor Resource

PMC552060C
Batch mix concrete

Assessment tool

Version 1.0
Issue Date: March 2024


This unit of competency applies to operators of concrete batching plants in the pre-mixed and/or manufactured concrete products industries. It includes both wet and dry batching.

It is NOT intended to apply to the use of manually charged/discharged concrete mixers such as might be used by builders on sites. PMC551003B Operate equipment applies to those mixers.

This unit of competency includes the operation of the batching plant using PLCs where applicable and of all equipment which is ancillary to the operation of the batching plant. The operation of equipment such as front end loaders, conveyors and hoppers are covered by other units (see PMC562070B Move materials, PMC562071C Operate bulk materials handling equipment).

In a typical scenario an operator runs the concrete batching equipment to meet product specifications and delivery requirements and/or production schedules. The operator is able to read and interpret these requirements and make necessary adjustments to meet the specifications.

This competency is typically performed by operators working either independently or as part of a team.

This unit of competency covers the selection of materials, batching and loading of different grades and amounts of concrete to meet production needs and the required standards.

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

Employability Skills

This unit contains employability skills.




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.

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

The unit will be assessed in as holistic a manner as is practical and may be integrated with the assessment of other relevant units of competency.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Competence must be demonstrated in the ability to recognise situations requiring action and then in implementing appropriate corrective action. Consistent performance should be demonstrated. In particular look to see that:

batches are produced on time and in specification

upstream and downstream communication is timely and effective

problems are anticipated and appropriate action is taken (i.e. problem fixed or reported).

Competence must be demonstrated in the operation of all ancillary equipment to the level required for this unit of competency.

Context of and specific resources for assessment

Assessment will require access to an operating plant over an extended period of time, or a suitable method of gathering evidence of operating ability over a range of situations.

Assessment will occur over a range of situations which will include disruptions to normal, smooth operation

Simulation or case studies/scenarios may be required to allow for timely assessment of parts of this unit of competency. Simulation should be based on the actual plant and will include 'walk-throughs' of the relevant competency components. Simulations may also include the use of case studies and scenarios. A bank of scenarios/case studies/what ifs will be required as will a bank of questions which will be used to probe the reasoning behind the observable actions.

Method of assessment

This unit may be assessed in conjunction with:

PMC561080B Organise self

MSAPMSUP106A Work in a team.

Individual enterprises may choose to add prerequisites and co-requisites relevant to their processes. In remote operations, this person may also need scheduling and other material ordering and handling competencies.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.


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.

Required skills

Required skills include:

recognising conditions which will lead to out of specification product

implementing the organisation's procedures and relevant regulatory requirementswithin time constraints and in a manner relevant to the operation of the equipment

conveying information relevant to the operation clearly and effectively

supervising delivery drivers as required by procedures

numeracy andliteracy to interpret workplace documents and technical information

Required knowledge

Required knowledge includes:

understanding of the equipment sufficient to operate it, recognise potential problems and to take appropriate action

organisation's procedures and relevant regulatory requirements, such as:

principles of operation of batching and mixing equipment

principles of batching and mixing these products

impact of variations in raw materials on the final product

impact of mixing on final product

organisation's production and/or delivery schedules

causes of faults such as those precipitated by:

raw material inaccuracies

equipment failures

mixing time/technique variations

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Procedures

All operations are performed in accordance with standard procedures and work instructions

Job requirements

Job requirements may be determined from:

work schedule

job specification

job card

batch card

computerised system

other

Sampling and testing

Sampling and testing may be required for:

moisture content

particle size

other

Variations

Variations may include:

nature and type of plant configuration

nature and type of material or product to be batched/mixed

conditions under which the product is to be employed including weather conditions

Typical problems

Typical problems include:

equipment malfunction

raw material specifications

mixing tolerance

uniform dispersion of minor ingredients/additives

mixing to colour/other special requirements

matching mixes produced with production requirements

adjusting mix formula to compensate for variations in raw materials (e.g. sand moisture content)

Occupational health and safety (OHS)

All operations are subject to stringent OHS requirements and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and OHS requirements, the OHS requirements take precedence

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
Identify job requirements 
Select the correct type and quantity of materials as required 
Meet special requirements and specifications 
Identify any material handling problems and take the appropriate action 
Update material records as required 
Set up and operate batching and/or mixing equipment to specifications and procedures 
Batch materials as required by specifications and procedures 
Check that materials prepared match requirements 
Use ancillary equipment as required according to procedures 
Discharge batched concrete into delivery trucks/mixers 
Check and adjust settings as required 
Make routine checks and recognise developing problems 
Recognise equipment in need of maintenance/repair 
Take samples and interpret test results as required 
Ensure the production process and product complies with the appropriate quality procedures 
Complete all required records 
Keep the area and equipment clean and in good order 
Shut down equipment as required 
Complete maintenance checklists as required 
Respond to routine faults according to procedures 
Report non-routine faults according to procedures 
Identify the range of faults that can occur during the operation 
Determine and rectify fault causes in accordance with procedures 
Identify and rectify equipment failure causes in accordance with procedures 
Ensure appropriate records and log books of equipment operations are maintained to meet procedures 
Identify non-routine problems and report to designated person 
Identify hazards from the job to be done 
Identify other hazards in the work area 
Assess the risks arising from those hazards 
Implement measures to control those risks in line with procedures 

Forms

Assessment Cover Sheet

PMC552060C - Batch mix concrete
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

PMC552060C - Batch mix concrete

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: