CPCCST3020A
Produce reconstituted stone

This unit of competency specifies the outcomes required to create or use specific moulds; and mix, pour and finish to detailed specifications to produce reconstituted stone products, such as terrazzo and epoxy-based stone repairs.

Application

This unit of competency supports the work of stonemasons who create stone products using different types of concrete mixes. The work may be completed individually or in a team.


Prerequisites

CPCCOHS2001A

Apply OHS requirements, policies and procedures in the construction industry


Elements and Performance Criteria

1

Select and prepare materials and equipment.

1.1

Work instructions are obtained using relevant information, confirmed and applied for planningandpreparation purposes.

1.2

Work health and safety (WHS) requirements are followed according to safety plans and policies.

1.3

Toolsandequipment selected to carry out tasks are consistent with job requirements, checked for serviceability, and faults are rectified and reported before work begins.

1.4

Material quantity requirements are identified and calculated according to plans, specifications and quality requirements.

1.5

Materials appropriate to the work application are obtained, prepared, safely handled and located ready for use.

1.6

Environmentalrequirements are identified for the project according to environmental plans and statutoryandregulatoryauthorityrequirements.

2

Produce reconstituted stone.

2.1

Forms or moulds are constructed, or cleaned and prepared, according to job specifications ready for placement of aggregate mix.

2.2

Aggregates are measured, proportioned and mixed according to job specifications.

2.3

Mould is filled with mix and light vibration is applied to consolidate material and eliminate voids.

2.4

Level of filled mould is screeded to form a flat surface and cured according to job specifications.

2.5

Reconstituted stone section is removed from mould, carefully handled and placed on table ready for grinding process.

2.6

Surface of mould is ground thoroughly to expose aggregate and voids are filled evenly with matching colour cement mortar.

2.7

Surface is polished to produce finish that is flat and free from blemish.

3

Clean up.

3.1

Area is cleared of waste material, dust and equipment according to workplace requirements.

3.2

Unused materials are stored and waste materials disposed of according to environmental and workplace requirements.

3.3

Tools and equipment are cleaned, maintained and stored.

Required Skills

Required skills

communication skills to:

enable clear and direct communication

use questioning to identify and confirm requirements

share information

follow instructions

use and interpret non-verbal communication

use language and concepts appropriate to cultural differences

innovation skills to select appropriate tools and equipment, respond to workplace challenges and put ideas into action

numeracy skills to apply measurements and calculate material requirements

planning and organising skills to identify requirements, apply relevant resources and sequence tasks

problem-solving skills to recognise and take action to rectify minor faults and problems

reading skills to read and interpret drawings and specifications

teamwork skills to work with others to action tasks

Required knowledge

materials used to produce reconstituted stone and their characteristics

methods for placing, levelling and compacting concrete

polishing and grinding processes

proportion of materials for different mortar mixes

procedures for safely handling of materials

safe operating methods for plant, tools and equipment used for producing reconstituted stone

types of formwork and moulds for concrete and how they are constructed, cleaned and prepared

workplace and equipment safety requirements, including relevant statutory regulations, codes and standards

Evidence Required

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

This unit of competency could be assessed by observation in the workplace or simulated workplace setting.

Assessment may be conducted while tasks are undertaken either individually or as part of a team under limited supervision.

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

A person should demonstrate the ability to construct a terrazzo panel and repair terrazzo, marble or granite in situ, including the ability to:

apply organisational quality procedures within the context of producing reconstituted stone

select and use appropriate processes tools and equipment to produce reconstituted stone

select stone materials consistent with job specification

ensure accurate setting up of forms or moulds for placement of mix

proportion materials according to specification for mix

adopt and use safe and effective procedures to apply grinding and polishing processes

complete produced stone to specifications for mix and finish

comply with work health and safety regulations and requirements, including safe handling and placement procedures

identify typical faults and problems that may occur when creating moulds, and taking necessary action to rectify them

communicate with others to ensure safe and effective workplace operations.

Context of and specific resources for assessment

Assessment of this unit:

must be in the context of the work environment

may be conducted in an off-site context, provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills

must meet relevant compliance requirements.

Resource implications for assessment may include:

drawings and specifications relevant to proposed tasks

materials required for composition of proposed mix

moulds or material for formwork appropriate to activities

tools, plant and equipment appropriate to the application processes

work area suitable to tasks.

Method of assessment

Assessment for this unit must verify the practical application of the required skills and knowledge, using one or more of the following methods:

direct observation of tasks in real or simulated work conditions

questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application

review of relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.

Guidance information for assessment

This unit could be assessed on its own or in combination with other units relevant to the job function.

Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.

Assessment processes and techniques should, as far as is practical, take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.


Range Statement

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.

Information may include:

diagrams or sketches

instructions issued by authorised organisational or external personnel

memos

regulatory and legislative requirements

current Australian standards relating to the production of reconstituted stone

safe work procedures

safety data sheets (SDS)

signage

verbal, written and graphical instructions, including manufacturer specifications and instructions where specified

work bulletins

work schedules, plans and specifications.

Planningandpreparation may include:

assessing conditions and hazards

determining work requirements and safety plans and policies

identifying equipment defects

inspecting work sites.

Work health and safetyrequirements must comply with state and territory legislation and regulations and project safety plan and may include:

emergency procedures, including extinguishing fires, organisational first aid requirements, and evacuation procedures

hazard control

hazardous materials and substances

personal protective equipment (PPE) prescribed under legislation, regulations and workplace policies and practices

safe operating procedures, including operational risk assessment and treatments associated with:

concealed services (water, power and gas)

lighting

restricted access barriers

traffic control

working at heights

work site visitors and the public

working in proximity to others

use of firefighting equipment

use of tools and equipment

workplace environmental requirements and safety.

Toolsandequipment may include:

concrete mixers

floats

forklifts

gantry cranes

grinding machines

hammers

measuring tapes and rules

polishing machines

screed boards

shovels

spirit levels

wheelbarrows.

Qualityrequirements may include:

attention to specifications of work

control of handling procedures

finishing of stone surfaces

quality of materials

relevant regulations, including:

Australian standards

internal organisational quality policy and standards

manufacturer specifications where specified

workplace operations and procedures.

Materials used in the production of reconstituted stone may include:

basalt (bluestone)

coloured cement

igneous rocks

river gravel

sand.

Environmentalrequirements may include:

clean-up management

dust and noise control

vibration management

waste management.

Statutoryandregulatoryauthority includes:

federal, state and local authorities administering applicable Acts, regulations and codes of practice.


Sectors

Construction


Employability Skills

This unit contains employability skills.


Licensing Information

Check with relevant state and territory licensing and regulatory authorities. State and territory jurisdictions may have different regulatory requirements for work carried out on heritage structures.