CPCCWP3004A
Apply waterproofing remedial processes

This unit of competency specifies the outcomes required to apply remedial waterproofing processes to external and below ground level wet areas, using injection epoxy, cement crystallisation or hydrostatic coating methods.It includes identification of the waterproofing system to be used, its preparation and its application.

Application

This unit of competency supports the attainment of skills and knowledge to apply waterproofing remedial processes while working with others and in teams.


Prerequisites

CPCCOHS2001A

Apply OHS requirements, policies and procedures in the construction industry


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. 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. Material quantity requirements are calculated in accordance with plans and 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. Identify waterproofing system.

2.1. Area to be waterproofed is identified from a technical report or diagnosed damp fault area and inspected for defects and soundness in accordance with job and manufacturer specifications.

2.2. Area of structure for waterproofing surface application is inspected for defects and soundness in accordance with job and manufacturer specifications.

2.3. Appropriate remedial waterproofing systems and products are identified, analysed and selected in accordance with job and manufacturer specifications and with material safety data sheet (MSDS) directions.

2.4. Range of waterproofing materials is checked for product suitability, conformity to specification and compatibility with surface material, preparation and waterproofing installation technique.

2.5. Type of waterproofing material is identified in accordance with type of substrate, job specification, state of structure and job safety requirements with MSDS directions.

3. Prepare for waterproofing process.

3.1. Site to be repaired is confirmed to be in accordance with drawings, specifications and manufacturers' specification.

3.2. Construction/installation site is set out to specified location, structure and dimensions in accordance with drawings and specifications.

4. Apply waterproofing using injection.

4.1. Injection hole set-out spacings and depth are determined and measured in accordance with manufacturer recommendations.

4.2. Materials are prepared for injection method application in accordance with manufacturer recommendations.

4.3. Injection equipment is prepared and set up for injection process in accordance with manufacturer recommendations.

4.4. Injection system is tested and flushed in accordance with manufacturer specifications.

4.5. Damp course is made water resistant and capped using injection method in accordance with manufacturer recommendations and to specifications.

5. Apply waterproofing using hydrostatic barrier coatings.

5.1. Area to be repaired is located from job instructions, drawings and specifications.

5.2. Materials are prepared for remedial coating method application in accordance with manufacturer recommendations.

5.3. Application equipment is prepared and set up for application process in accordance with manufacturer recommendations.

5.4. Injection system is tested and flushed in accordance with manufacturer specifications.

5.5. System is connected to tubing caps and damp course is made water resistant and capped using injection method in accordance with manufacturer recommendations and to specifications.

6. Clean up

6.1. Work area is cleared and materials disposed of, reused or recycled in accordance with legislation, regulations, codes of practice and job specification.

6.2. Plant, tools and equipment are cleaned, checked, maintained and stored in accordance with manufacturer recommendations and standard work practices.

Required Skills

Required skills

Required skills for this unit are:

communication skills to:

follow instructions

read and interpret:

documentation from a variety of sources

drawings and specifications

recognise procedures

report faults

enable clear and direct communication, using questioning to identify and confirm requirements, share information, listen and understand

use language and concepts appropriate to cultural differences

use and interpret non-verbal communication, such as hand signals

written skills to record results of checks and tests and relevant work completion procedures

evaluate own actions and make 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

respond to change and contribute to workplace responsibilities, such as current work site environmental and sustainability frameworks and management systems

teamwork skills to 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:

characteristics and applications of remedial waterproofing materials

construction systems and waterproofing considerations

general construction terminology

job safety analysis (JSA) and safe work method statements

materials storage and environmentally friendly waste management

MSDS

plans, drawings and specifications

plant, tools and equipment types, characteristics, uses and limitations

principles and considerations of water exclusion

processes for the calculation of material requirements

quality requirements

remedial waterproofing materials, processes and testing techniques

workplace and equipment safety requirements.

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 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

as a minimum:

repair a crack in a concrete basement wall or a suspended car park slab, identifying remedial waterproofing method to be used, determining the type of material to be used and the repair requirement (e.g. spacing of injection ports/packers if using an injection method), and testing the application

inject a chemical damp course into a solid 230 brick wall/party wall and a cavity brick wall, plugging each procedure with epoxy plug, ensuring:

correct identification of requirement and installation of the waterproofing

correct selection and use of appropriate processes, tools and equipment

completing all work to specification.

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:

workplace location or simulated workplace

materials relevant to remedial waterproofing processes

hand and power tools, plant and equipment appropriate to remedial waterproofing processes

realistic activities covering the mandatory task requirements

specifications and work instructions.

Assessment of this unit of competency may be in conjunction with assessment of other units commonly performed at the same time in normal job roles.

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

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 remedial waterproofing processes

relevant Australian standards

safe work procedures relating to remedial waterproofing processes

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, including cement and curing agents

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:

angle grinders

chisels

electric drills and screwdrivers

hammers

impact drills

measuring tapes and rules

mixing equipment

pressure injection equipment, including:

cartridge applications

compressors

hoses

pumps

vacuum pumps

spirit levels

straight edges.

Quality requirements include relevant regulations, including:

Australian standards

internal company quality policy and standards

manufacturer specifications

workplace operations and procedures.

Remedial injection materials include:

cementitious products

epoxies

expanding polyurethane foam

polyurethane resin systems

silicon, silane and siloxane products

single and dual component resins.

Environmental requirements include:

clean-up management

dust and noise

vibration

waste management.

Identification includes:

preparation of the waterproofing material

application to a structural substrate.

Defects that may be addressed using injection methods include:

cracks in concrete walls and floors

damp or wet areas occurring in structures.

Waterproofing surface applications include:

floor surfaces

roof surfaces

standard wet areas

wall surfaces.

Remedial waterproofing systems include:

barrier of silicon to stop rising damp

concrete crystallisation or by injection

concrete repair injection hydrostatic barrier coatings

membranes

saturants on an external wall (in case of flood).

Substrates include:

aerated autoclaved concrete materials:

Hebel

Thermolite

blockwork

brickwork

cement render

ferrous and non-ferrous piping

fibrous cement sheeting

pre-cast concrete

polyvinyl chloride (PVC)

reinforced in situ concrete

timber and timber-based products

wet area plasterboard.


Sectors

Unit sector

Construction


Co-Requisites

Nil


Employability Skills

This unit contains employability skills.


Licensing Information

Not Applicable