CPCCCO3026A Carry out repair and rectification of concrete

Release: 1

CPCCCO3026A Carry out repair and rectification of concrete

Modification History

Not Applicable

Unit Descriptor

Unit descriptor	This unit of competency specifies the outcomes required to repair or rectify minor or major defects in concrete work to fix damaged areas. The unit includes patching, refinishing, sealing and colouring concrete.

Application of the Unit

Application of the unit	This unit of competency supports the attainment of the understanding and skills to repair and rectify concrete work, which may include working with others and as a member of a team.

Licensing/Regulatory Information

Not Applicable

Pre-Requisites

Prerequisite units
CPCCOHS2001A	Apply OHS requirements, policies and procedures in the construction industry

Employability Skills Information

Employability skills	This unit contains employability skills.

Elements and Performance Criteria Pre-Content

Elements describe the essential outcomes of a unit of competency.	Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide.

Elements and Performance Criteria

ELEMENT	PERFORMANCE CRITERIA
1. Plan and prepare.	1.1. Work instructions and operational details are obtained using relevant information, confirmed and applied for planning and preparation purposes. 1.2. Safety (OHS) requirements are followed in accordance with safety plans and policies. 1.3. Signage and barricade requirements are identified and implemented. 1.4. Plant, tools and equipment selected to carry out tasks are consistent with the requirements of the job, checked for serviceability and any faults are rectified or reported prior to commencement. 1.5. Materials quantity requirements are calculated in accordance with plans, specifications and quality requirements. 1.6. Materials appropriate to the work application are identified, obtained, prepared, safely handled and located ready for use. 1.7. Environmental requirements are identified for the project in accordance with environmental plans and regulatory obligations and applied.
2. Carry out minor repairs.	2.1. Types of surface which may require repair are identified and repair work is categorised as major repairs or general repairs. 2.2. Colour variations are repaired by the application of a concrete staining agent. 2.3. Effects of dusting are repaired by the correct application of an appropriate surface hardener/dust inhibiting agent or removal of the weak top layer. 2.4. Damaged or blistered concrete is repaired either by grinding or topping. 2.5. Repair mortars and self-levelling floor compounds are applied according to manufacturer specification. 2.6. Sealers and coloured paints are applied to concrete surfaces in accordance with manufacturer specification.
3. Carry out rectification of cracks and other major defects.	3.1. Root cause of the defect is determined and rectified. 3.2. Concrete is prepared and flexible epoxy resins are applied to manufacturer specification. 3.3. Toppings are applied to concrete using correct materials and techniques. 3.4. Acid etching/cleaning is applied safely in accordance with manufacturer requirements.
4. Clean up.	4.1. Work area is cleared and materials disposed of, reused or recycled in accordance with legislation, regulations, codes of practice and job specification. 4.2. Plant, tools and equipment are cleaned, checked, maintained and stored in accordance with manufacturer recommendations and standard work practices.

Required Skills and Knowledge

REQUIRED SKILLS AND KNOWLEDGE
This section describes the skills and knowledge required for this unit.
Required skills
Required skills for this unit are: communication skills to: determine requirements enable clear and direct communication, using questioning to identify and confirm requirements, share information, listen and understand follow instructions read and interpret: documentation from a variety of sources drawings and specifications report faults use language and concepts appropriate to cultural differences use and interpret non-verbal communication, such as hand signals evaluating own actions and making judgments about performance and necessary improvements identifying and accurately reporting to appropriate personnel any faults in tools, equipment or materials organisational skills, including the ability to plan and set out work recognising procedures, following instructions, responding to change and contributing to workplace responsibilities, such as current work site environmental and sustainability frameworks or management systems teamwork skills to coordinate own work with others to action tasks and relate to people from a range of cultural and ethnic backgrounds and with varying physical and mental abilities technological skills to: use a range of mobile technology, such as two-way radio and mobile phones voice and hand signals to access and understand site-specific instructions.
Required knowledge
Required knowledge for this unit is: concrete repairing materials and techniques concrete structures control joints formwork and reinforcement 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 mortar mix composition and additives placing and finishing of concrete plans, drawings and specifications processes for the calculation of material requirements quality requirements types, characteristics, uses and limitations of plant, tools and equipment workplace and equipment safety requirements.

Evidence Guide

EVIDENCE GUIDE
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 in the workplace or a close simulation of the workplace environment, provided that simulated or project-based assessment techniques fully replicate construction workplace conditions, materials, activities, responsibilities and procedures.
Critical aspects for assessment and evidence required to demonstrate competency in this unit	A person who demonstrates competency in this unit must be able to provide evidence of the ability to: locate, interpret and apply relevant information, standards and specifications comply with site safety plan and OHS legislation, regulations and codes of practice applicable to workplace operations comply with organisational policies and procedures including quality requirements safely and effectively operate and use tools, plant and equipment communicate and work effectively and safely with others remove a section or whole defective area, cleaning and preparing the effected area and applying the necessary bonding identify and apply the correct rectification method and top coat to a minimum of one square metre of affected area for three of the minor repairs and one major repair listed in the range statement.
Context of and specific resources for assessment	This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints. Assessment of essential underpinning knowledge will usually be conducted in an off-site context. Assessment is to comply with relevant regulatory or Australian standards' requirements. Resource implications for assessment include: an induction procedure and requirement realistic tasks or simulated tasks covering the mandatory task requirements relevant specifications and work instructions tools and equipment appropriate to applying safe work practices support materials appropriate to activity workplace instructions relating to safe work practices and addressing hazards and emergencies material safety data sheets research resources, including industry related systems information. 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.
Method of assessment	Assessment methods must: satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application reinforce the integration of employability skills with workplace tasks and job roles confirm that competency is verified and able to be transferred to other circumstances and environments. Validity and sufficiency of evidence requires that: competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence. 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. Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.

Range Statement

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 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 repairing concrete relevant Australian standards safe work procedures relating to repairing 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 firefighting equipment use of tools and equipment workplace environmental requirements and safety.
Tools and equipment include:	brooms concrete mixers floats grinders hoses polishers power trowels rollers screeds shovels trowels water blasters 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 may include: bonding agents curing compounds retardants.
Environmental requirements include:	clean-up management dust and noise stormwater management vibration waste management.
Types of surface which may require repair include:	beams columns concrete aprons pathways ramps slabs stairs walls.
Repair work includes:	dowelling drilling formwork patching replacing concrete resurfacing self-levelling compounds.
Major repairs include:	cracks (wet, live and dormant) non-bonding of new to old interfaces non-compliant surfaces subsidence.
General repairs involve:	acid etching/cleaning bonded toppings levelling compounds mortars slippery surfaces topping existing concrete un-bonded toppings.
Dusting is a fault where:	concrete is too soft as a result of poor curing where the surface is breaking up.
Damaged or blistered concrete includes:	blow holes dusting rain damage spalling stamped concrete defects stencilled concrete defects wavy or uneven surfaces.

Unit Sector(s)

Unit sector	Construction

Co-requisite units

Co-requisite units	Nil

Functional area

Functional area