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Elements and Performance Criteria

  1. Plan and prepare for operations
  2. Define and prepare work area
  3. Place concrete and compact
  4. Screed/level concrete
  5. Screed concreteto correct levels and grades using straight edged tool/formwork mounted screed
  6. Clean up

Required Skills

Required skills

Specific skill is required to achieve the Performance Criteria of this unit particularly for its application in the various circumstances in which this unit may be used This includes knowledge of the following as required to conduct placement and compaction of concrete including

using a vibrator

coordinating with other team members

following instructions

reading drawings and specifications

reporting faults and hazards

knowing responsibilities and team members responsibilities

Required knowledge

Specific knowledge is required to achieve the Performance Criteria of this unit particularly for its application in the various circumstances in which this unit may be used This includes knowledge of the following as required to conduct placement and compacting concrete including

cold joints

compaction

concrete materials

concrete reinforcement techniques

concreting techniques

general construction terminology

job safety analysis JSA and safe work method statements

levelling techniques

material safety data sheets MSDS

materials storage and environmentally friendly waste management

mix specifications

plans drawings and specifications

processes for the calculation of material requirements

quality requirements

segregation

slump testing

types characteristics uses and limitations of plant tools and equipment

workplace and equipment safety requirements

MSDS SWMS

testing procedures

spec

environmental hazardsconstraints

how to read a delivery docket

different methods of placing concrete ie kibble pump agitator tipper

hazards involved in the placement of concrete ie enviro plant movements chemicals

knowing what type of concrete is to be used and what specification

the importance of doing prepour checks before concrete arrives onsite formwork steel etc

the effects the weather has on concrete ie cold hot rain

the importance of planning your vehicle movements in and around your concrete pour

different styles and methods of vibrating concrete

the difference between harmonious concrete and nonharmonious concrete

how concrete compaction effects the strength and life span of concrete

what to look for when vibrating concrete

knowing the environmental and waste management procedures

inspection of tools and equipment at the end of the shift why it is important to clean tools

different products and ways of cleaning tools

storage and maintenance of concrete tools and gear

Evidence Required

Overview of assessment

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

The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria required skills and knowledge and the range statement of this unit and include evidence of the following

knowledge of the requirements procedures and instructions for the placement and compaction of concrete

implementation of requirements procedures and techniques for the safe effective and efficient placement and compaction of concrete

working with others to undertake the placement and compaction of concrete that meets all of the required outcomes

consistent timely placement and compaction of concrete that safely effectively and efficiently meets the required outcomes

conduct placement and compaction of concrete materials

Context of and specific resources for assessment

This unit must be assessed in the context of the work environment Where personal safety or environmental damage are limiting factors assessment may occur in a simulated environment 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

Assessment of this competency requires typical resources normally used in Civil Construction Selection and use of resources for particular worksites may differ due to the site circumstances

The assessment environment should not disadvantage the participant For example language literacy and numeracy demands of assessment should not be greater than those required on the job

Customisation of assessment and delivery environment to sensitively accommodate cultural diversity

Aboriginal people and other people from a non English speaking background may have second language issues

Where applicable physical resources should include equipment modified for people with disabilities Access must be provided to appropriate learning andor assessment support when required

Method of assessment

This unit may be assessed in a holistic way with other units of competency The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods

written andor oral assessment of the candidates required knowledge

observed documented andor first hand testimonial evidence of the candidates

implementation of appropriate requirement procedures and techniques for the safe effective and efficient achievement of required outcomes

consistent achievement of required outcomes

first hand testimonial evidence of the candidates

working with others to undertake and complete the placing and compacting of concrete

Guidance information for assessment

Consult the SkillsDMC User Guide for further information on assessment including access and equity issues


Range Statement

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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 includes:

diagrams or sketches

instructions issued by authorised organisational or external personnel

manufacturer specifications and instructions, where specified

MSDS

memos

regulatory and legislative requirements pertaining to placing concrete

relevant Australian standards

safe work procedures relating to placing concrete

signage

verbal, written and graphical instructions

work bulletins

work schedules, plans and specifications

Planning and preparation include:

assessment of conditions and hazards

determination of work requirements and safety plans and policies

equipment defect identification

work site inspection

Safety (OHS) is to be in accordance 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

handling activities that may require the assistance of others or the use of manual or mechanical lifting devices where size, weight or other issues, such as a disability are a factor

hazard control

hazardous materials and substances

organisational first aid

PPE prescribed under legislation, regulations and workplace policies and practices

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

earth leakage boxes

lighting

power cables, including overhead service trays, cables and conduits

restricted access barriers

surrounding structures

traffic control

trip hazards

work site visitors and the public

working at heights

working in confined spaces

working in proximity to others

use of fire fighting equipment

use of tools and equipment

work place environmental requirements and safety

Tools and equipment :

include:

chutes

measuring tapes and rules

screed boards

shovels

trowels

may include:

brooms

compressors

concrete placing booms

kibbles

line pumps

mechanised dumpers

rakes

stipple devices

trowelling machines

vibrators

wheelbarrows

Quality requirements include:

internal company quality policy and standards

manufacturer specifications where specified

relevant regulations, including Australian standards

workplace operations and procedures

Materials include:

concrete.

Environmental requirements include:

clean-up management

dust and noise

stormwater management

vibration

waste management

Concrete delivery includes:

crane and kibble

pre-mix truck

wheelbarrow

Placing of concrete includes:

kibble

pumping equipment

shovelling

tremmies

truck placed

vibrating

wheelbarrows

Methods to avoid segregation of concrete include:

using a tremmie, through minimising the height of a vertical drop (no greater than 2 metres high for 20MPA at 80 slump)

using pumps with a flexible hose.

Compaction or vibration methods include:

mechanical vibrators

Finishing techniques include:

broom finished

brushed

mechanical trowelling machine

steel trowel

wood float

Screed :

includes a hand screed

may include:

a mechanical vibrating screed

magic screeds