Do I need experience with every type of post-tensioning system?

The installation and stressing units require evidence against two of the specified system endorsements: Mono strand systems. Multi-strand systems. Post-tensioning bars. The learner does not have to claim all three, but the workplace must provide enough valid activity for the two being assessed.

Yes. This is a competence-based NVQ assessed through workplace evidence.

Do I need to be employed?

You need a suitable workplace role (employed or otherwise) where you can generate the required evidence.

Civil and Specialist Construction

Level 2 NVQ Diploma in Post-Tensioning Operations (Construction)

Work-based qualification for operatives who install and stress bonded or unbonded post-tensioning systems.

Overview

The Level 2 NVQ Diploma in Post Tensioning Operations (Construction) confirms occupational competence in assembling, installing and stressing post-tensioning systems used in structural concrete construction. It is a Diploma designed around performance in a real workplace rather than classroom knowledge alone.

The qualification covers the preparation and protection of the work area, interpretation of tendon layouts and specifications, handling of specialist components, installation of tendon systems, stressing operations, measurement and recording of extensions, and the safe completion of work. The bonded pathway also covers the grouting or waxing of post-tensioned tendons or bars.

Successful learners demonstrate that they can work safely and productively with post-tensioning equipment, materials and components while following drawings, method statements, risk assessments, manufacturers’ information and organisational procedures. The qualification also confirms competence in protecting the work, coordinating with other trades, identifying defects and reporting conditions that fall outside the operative’s authority.

The approved structure provides bonded and unbonded pathways. Both pathways include installation and stressing, but the bonded pathway requires an additional unit covering grouting or waxing. Installation and stressing competence must also be demonstrated against two specified system endorsements: mono strand systems, multi-strand systems or post-tensioning bars.

Earlier regulated versions have been withdrawn or closed to new registrations and may use older unit wording. Current availability should therefore be confirmed before enrolment, particularly where a specific pathway or occupational endorsement is required.

For employers, the qualification provides assessed evidence that an operative can perform defined post-tensioning activities to the required specification while observing the controls associated with high-force stressing equipment and structural concrete work.

Qualification structures, unit wording and assessment requirements may vary slightly depending on the approved awarding organisation.

Who It’s For

This qualification is primarily intended for people already working as post-tensioning operatives or carrying out equivalent duties within a specialist concrete or post-tensioning team. It is appropriate where the learner has responsibility for completing practical tasks under established designs, specifications, method statements and workplace controls.

Suitable learners may be involved in:

Installing ducts, tendons, strands, bars, anchorages, couplers, vents and associated components.
Setting out and profiling post-tensioning systems from drawings and schedules.
Preparing live-end and dead-end anchorage arrangements.
Operating or assisting with hydraulic stressing equipment.
Measuring and recording tendon or bar extensions.
Cutting, sealing, locking or capping stressed systems.
Pressure testing ducts and checking system integrity.
Grouting, greasing or waxing tendons or bars where required by the selected pathway.
Establishing and maintaining controlled work areas around installation and stressing operations.

Relevant workplaces include reinforced and post-tensioned concrete projects such as buildings, structural slabs, beams, civil engineering structures and other sites where approved post-tensioning systems are being installed.

Because practical competence must be assessed through genuine occupational activity, learners normally need employment, self-employment, subcontracted work or another legitimate workplace arrangement that gives them continuing access to post-tensioning operations. Training-centre exercises cannot replace the required workplace evidence.

Pathways and Occupational Endorsements

The qualification structure reflects the distinction between unbonded systems and systems requiring post-stressing grouting or waxing. There is no general optional-unit group: learners complete all units required for their pathway and must satisfy the relevant system endorsements.

Unbonded Post-Tensioning

This pathway is for operatives who install and stress post-tensioning systems without completing the additional grouting or waxing unit required by the bonded pathway.

The pathway covers work-area protection, site safety, productive working, resource handling, component installation and stressing. The learner must have access to installation and stressing activities for two of the following:

Mono strand systems.
Multi-strand systems.
Post-tensioning bars.

Completion of the unbonded pathway does not by itself confirm competence in grouting or waxing post-tensioned tendons and bars.

Bonded Post-Tensioning

This pathway includes the same core installation and stressing requirements as the unbonded pathway, together with grouting or waxing post-tensioned tendons or bars.

Learners must be able to prepare grouting or waxing equipment, check duct integrity, identify leaks or blockages, mix or prepare the specified material, pump it through the system, manage vents, complete testing and seal the system after the applicable curing or completion stage.

As with the unbonded pathway, installation and stressing must be demonstrated for two endorsed system types: mono strand systems, multi-strand systems or post-tensioning bars.

System Endorsements

The system endorsements define the post-tensioning arrangements against which the learner’s installation and stressing competence has been assessed. They are not separate optional units.

The required evidence must cover two of these occupational systems:

Mono strand systems.
Multi-strand systems.
Post-tensioning bars.

Learners should confirm that their workplace provides sufficient access to two required systems before starting the qualification.

Workplace Requirements

Learners need sustained access to live post-tensioning work where they can generate valid evidence under normal workplace conditions. The work must be authorised, properly supervised and performed in accordance with the project design, safe system of work and the learner’s permitted responsibilities.

The workplace should provide opportunities to use or work with relevant resources, including:

Tendon layouts, construction drawings, specifications and stressing schedules.
Risk assessments, method statements and manufacturers’ instructions.
Strands, tendons, post-tensioning bars, ducts, couplers, chairs and vents.
Void formers, dead-end and live-end anchorages, wedges, nuts, washers and caps.
Setting-out and measuring equipment.
Hydraulic jacks, pumps, hoses, pressure gauges and specialist stressing equipment.
Current calibration information for stressing and measuring equipment.
Hand tools, portable power tools, lifting aids and access equipment.
Grout, wax, grease, mixers, pumps, gauges and testing equipment where the bonded pathway is being assessed.

Learners must also have opportunities to establish controlled work areas; confirm that specified pre-stressing conditions have been met; install and secure components; stress the endorsed systems; measure extensions; complete records; and identify results that require referral.

For the bonded pathway, workplace evidence must include the relevant duct preparation, integrity checks, material preparation, pumping, venting, testing, sealing and recording activities.

The learner is not expected to make structural design decisions or approve departures from the specification. Incorrect information, unsuitable materials, equipment defects, unexpected stressing results, leakage, blockages or other conditions outside the learner’s authority must be reported to an authorised person.

Learning Outcomes

A successful learner can:

Interpret post-tensioning drawings, tendon layouts, specifications, schedules, risk assessments, method statements and manufacturers’ information.
Establish, maintain and remove appropriate protection, barriers, notices and safety arrangements around post-tensioning work.
Plan and sequence assigned work while coordinating with supervisors, colleagues and other occupations.
Select, inspect, move, handle and store strands, bars, ducts, anchorages, fixings, equipment and consumable materials.
Set out tendon or bar positions and install post-tensioning components to the required profile and specification.
Prepare live-end and dead-end arrangements, ducting, couplers, vents and anchorages.
Use specialist stressing equipment safely and check that applicable calibration information is available.
Confirm that specified conditions, including the required concrete-strength release, have been authorised before stressing begins.
Stress tendons or bars to the specified load and complete any required second-stage stressing operation.
Measure, compare, record and communicate extensions and other stressing data.
Cut, seal, lock or cap tendons and bars in accordance with the system requirements.
Test duct integrity and complete grouting or waxing operations where required by the bonded pathway.
Recognise defects, abnormal results, unsuitable resources and circumstances requiring work to stop or be referred.
Protect completed work, minimise damage and dispose of waste in accordance with workplace and environmental procedures.
Complete installation, stressing, testing and material records clearly and within the required timescale.

Units

The qualification contains a group of mandatory competence units shared by both pathways. Installation and stressing are mandatory and must be assessed against two system endorsements. The bonded pathway contains an additional mandatory grouting or waxing unit. There is no unrestricted choice of optional units.

Extract relevant requirements from plans, risk assessments, method statements, specifications and site instructions.
Select suitable barriers, fencing, cones, tapes, signs, fixings and safety equipment.
Measure, position, assemble and secure temporary protection arrangements.
Protect identified services, surrounding work and areas used by other occupations.
Install and maintain safety notices and lighting where required.
Inspect the protected area and correct or report displaced, damaged or unsuitable equipment.
Maintain clear access and a tidy working space.
Dismantle and remove protection safely when authorised.
Report the work completed and any unresolved safety concerns.
Demonstrate competence specifically within a post-tensioning work area.

Follow site inductions, briefings, safety notices and approved systems of work.
Use collective protection, personal protective equipment and other identified controls correctly.
Recognise hazards created by changing workplace conditions.
Report defects, hazards, near misses and incidents through organisational procedures.
Stop work when there is serious or imminent danger.
Follow emergency, evacuation, fire and accident-reporting arrangements.
Store safety equipment correctly and help maintain workplace welfare facilities.
Dispose of consumables and waste in accordance with site procedures.
Behave responsibly where personal actions could affect colleagues, other trades or the public.
Follow security arrangements for equipment, materials and controlled areas.

Communicate appropriately with supervisors, colleagues, clients and other relevant people.
Interpret workplace procedures and plan the sequence of assigned tasks.
Coordinate installation and stressing activities with concreting, reinforcement, formwork and associated operations.
Use labour, materials, equipment and time efficiently.
Identify circumstances that may delay or disrupt the work programme.
Report changes affecting access, resources, concrete readiness or scheduled stressing.
Complete job sheets, worksheets, resource lists and time records.
Maintain cooperative working relationships and respect the needs of other occupations.
Contribute to efficient resource use and reduced waste.

Interpret handling and storage instructions for occupational resources.
Select and use suitable lifting aids, containers and securing systems.
Move, position, secure and store strands, bars, ducts, anchorages, tools and equipment safely.
Apply safe manual-handling and kinetic-lifting techniques.
Protect components from contamination, deformation, impact, corrosion and adverse weather.
Segregate or store materials in accordance with product and site requirements.
Prevent damage to completed work and surrounding areas.
Identify damaged, unsuitable or incorrectly stored resources.
Report handling problems and conditions outside personal authority.
Maintain a clean work area and dispose of packaging and waste correctly.

Interpret tendon layouts, drawings, specifications, schedules and manufacturers’ instructions.
Set out the positions and profiles of tendons or post-tensioning bars.
Select and inspect ducts, chairs, couplers, vents, strands, bars, anchorages, wedges and associated components.
Measure, mark, fit, position, finish and secure components accurately.
Prepare live-end anchorage locations and install dead-end arrangements.
Install ducting, couplers, strands or bars according to the selected systems.
Profile and secure ducts, seal joints and position vents.
Locate and secure tendons or bars before the relevant concrete operation.
Complete specified pressure or integrity checks where applicable.
Confirm and record that the installed tendon assembly is complete.
Use specialist equipment, hand tools, portable power tools and access equipment safely.
Protect installed components from damage, displacement and contamination.
Communicate installation data and report deviations, damaged components or unsuitable conditions.
Demonstrate installation competence for two of the required system endorsements.

Interpret stressing schedules, drawings, specifications and equipment instructions.
Select suitable anchor assemblies, wedges, nuts, washers, caps and stressing equipment.
Check pumps, hoses, gauges, jacks and ancillary equipment before use.
Confirm that the required equipment calibration information is current and applicable.
Establish or comply with the specified stressing exclusion zone.
Confirm through authorised information that the specified concrete strength has been achieved.
Remove void formers and prepare anchor arrangements for stressing.
Confirm the required measuring regime and initial reference measurements.
Stress mono tendons, multi-strand tendons or post-tensioning bars to the specified load.
Complete a second-stage stressing operation where it is required by the specification.
Measure and record extensions, loads and relevant stressing data.
Recognise unexpected extension readings, equipment problems or anchorage behaviour requiring referral.
Lock off the system and cut, seal or cap tendons and bars as specified.
Safely store and maintain stressing equipment after use.
Demonstrate stressing competence for two required system endorsements.

Interpret drawings, specifications, schedules, method statements and product information.
Select vents, connectors, grout, wax, grease, mixers, pumps, gauges and testing equipment.
Prepare grouting, greasing or waxing equipment for use.
Blow out or otherwise prepare ducts in accordance with the approved method.
Test duct integrity and check for leakage or blockages.
Rectify permitted defects or refer them to an authorised person.
Mix pre-bagged grout or prepare the specified wax or grease correctly.
Conduct required tests or assist authorised personnel carrying them out.
Pump grout, wax or grease through the tendon or bar system.
Monitor flow, pressure and material at vents.
Bleed and seal vents in the required sequence.
Top up the system where specified.
Remove vents and seal the system after the applicable curing or completion stage.
Cap, seal and protect tendons or bars against environmental exposure.
Clean equipment and the work area while controlling waste and spillages.
Complete grouting, waxing, testing and sealing records.

Assessment

Assessment establishes whether the learner can perform post-tensioning work safely and competently under genuine site conditions. Every learning outcome and assessment requirement in the selected pathway must be achieved, including the required system endorsements.

Workplace Observation

Direct observation is central to the qualification. An occupationally competent assessor must observe normal work activities that demonstrate the required practical skills.

Observed activities may include:

Establishing and maintaining the controlled work area.
Setting out tendon positions and profiles.
Installing ducts, strands, bars, anchorages, couplers and vents.
Checking completed assemblies before concrete placement or stressing.
Preparing calibrated stressing equipment.
Stressing tendons or bars and locking off the system.
Measuring and recording extensions.
Cutting, sealing and capping completed systems.
Testing duct integrity and completing grouting or waxing operations for the bonded pathway.

Observation must cover the pathway and system endorsements claimed by the learner.

Portfolio and Work Products

A portfolio brings together authenticated evidence from the learner’s normal work. Evidence must be relevant, current, sufficient and attributable to the learner.

Suitable occupational evidence may include:

Approved tendon layouts, drawings or marked-up installation information.
Installation checklists and tendon-completion records.
Work-area inspection or exclusion-zone records.
Pressure or duct-integrity test results.
Equipment inspection records and applicable calibration certificates.
Authorised confirmation that the required concrete strength was achieved before stressing.
Stressing sheets showing loads, gauge readings and measured extensions.
Records of deviations, defects or abnormal results reported for review.
Grout or wax preparation, testing, pumping and venting records.
Photographs linked to identifiable work activities.
Completed job sheets, resource records and handover documentation.

Commercially sensitive information may be controlled, but evidence must remain detailed enough for the assessor to make a valid judgement.

Questioning and Professional Discussion

Oral or written questioning is used to confirm knowledge that cannot be fully established from observation or work products. Professional discussion may connect different pieces of evidence and confirm why particular actions were taken.

Knowledge assessment may address:

Hazards associated with stored energy, hydraulic pressure and stressing zones.
Selection and limitations of components and equipment.
Calibration and equipment-defect reporting.
Tendon profiles, anchor arrangements and installation sequences.
Concrete-strength release requirements.
Extension measurement and reporting of unexpected results.
Duct leakage, blockage and grout or wax control.
Emergency procedures, environmental protection and waste handling.
Limits of the operative’s authority.

Knowledge evidence supports practical assessment but does not replace the requirement to demonstrate occupational skills.

Witness and Employer Evidence

Testimony from a credible supervisor or other occupationally knowledgeable person may support evidence of work completed when the assessor was not present. Employer records can also help authenticate dates, locations, systems and responsibilities.

Supporting testimony cannot normally replace direct assessor observation of the principal installation, stressing and pathway-specific competence.

Recognition of Prior Learning

Relevant previous experience may be considered where it produces current, authentic and sufficient evidence against the qualification requirements. Existing experience does not remove the need to demonstrate every required outcome, pathway activity and endorsement.

Where evidence is incomplete, outdated or cannot be authenticated, further workplace assessment will be necessary.

Restrictions on Simulation

The qualification is based on real workplace competence. Workplace evidence for general safety, productive working, resource handling and work-area protection cannot be simulated.

Installation, stressing and grouting or waxing must also be assessed through genuine workplace activity. The limited exception identified in the applicable unit guidance concerns the demonstration of safe fire-extinguisher use. This does not permit simulation of tendon installation, stressing, extension measurement, duct testing, grouting, waxing or sealing.

To complete the qualification, the learner must achieve every mandatory unit for the selected pathway and satisfy the required system endorsements.

Career Progression

The qualification supports continued work and development within specialist post-tensioning operations. Progression depends on the pathway achieved, workplace experience, employer requirements and any additional technical or supervisory competence needed for the intended role.

Post-Tensioning Operative Roles

The qualification is directly relevant to roles such as:

Post-tensioning operative.
Post-tensioning installer.
Tendon installation operative.
Stressing operative.
Post-tensioning bar operative.
Bonded-system grouting or waxing operative, where the relevant pathway has been achieved.

Actual duties must remain consistent with the learner’s assessed pathway, system endorsements, workplace authorisation and experience.

Broader System Experience

An operative initially assessed on two system types may develop additional experience in mono strand, multi-strand or post-tensioning bar systems. Further workplace instruction and competence assessment may be required before independently undertaking unfamiliar systems or specialist equipment.

A learner who completed the unbonded pathway may also develop towards bonded operations by gaining genuine experience in duct testing, grouting or waxing and completing the required additional competence.

Supervision and Technical Development

With suitable experience, learners may progress towards chargehand, team-leading or post-tensioning supervisory responsibilities. These roles require competence beyond operative installation and stressing, including planning, coordination, monitoring, problem escalation and control of work teams.

Relevant progression may include an occupational work supervision qualification or, where the individual’s duties justify it, construction site supervision. Specialist manufacturer training, post-tensioning supervisor training and further health and safety responsibilities may also be required.

The Diploma does not qualify its holder to design post-tensioning systems, approve structural changes or independently authorise work reserved for engineers, designers or appointed supervisors.

CSCS Card

The bonded pathway is officially mapped to the Post Tensioning Operative occupation for the Blue Skilled Worker CSCS card. The corresponding qualification mapping specifies the Level 2 NVQ Diploma in Post Tensioning Operations (Construction) – Bonded.

Holding the bonded-pathway qualification may support an application, but the qualification does not automatically issue or guarantee a card. The applicant must make a separate application and provide the required qualification evidence.

Applicants must also pass the CITB Health, Safety and Environment Operatives test within the required validity period, currently the two years before application.

The official mapping specifically identifies the bonded pathway. The unbonded pathway should not be assumed to support the same card solely because it shares installation and stressing units. Applicants should check their exact pathway, certificate wording, occupation and current requirements through the official Card Finder before applying.

FAQs

These questions address the pathway, workplace and assessment issues most relevant to post-tensioning operatives considering this qualification.

Both pathways assess work-area safety, resource handling, post-tensioning component installation and stressing operations. The bonded pathway contains an additional mandatory unit covering the grouting or waxing of post-tensioned tendons or bars.

The selected pathway should match the activities the learner genuinely performs and can demonstrate in the workplace.

The qualification requires extensive evidence from real post-tensioning operations. Learners therefore normally need an existing job, subcontract, self-employed role or another genuine workplace arrangement providing access to installation and stressing work.

The bonded pathway additionally requires access to grouting or waxing operations. Training-centre practice alone cannot establish the occupational competence required.

The installation and stressing units require evidence against two of the specified system endorsements:

Mono strand systems.
Multi-strand systems.
Post-tensioning bars.

The learner does not have to claim all three, but the workplace must provide enough valid activity for the two being assessed.

Evidence normally includes preparing the work area, checking stressing equipment and calibration information, confirming authorised concrete-strength information, preparing anchor arrangements, applying the specified load, measuring extensions, locking off the system and completing the stressing record.

The assessor must also confirm that the learner can recognise and report abnormal readings, defective equipment and other conditions outside personal authority.

The principal occupational skills cannot be simulated. Installation, stressing, extension measurement and pathway-specific grouting or waxing must be demonstrated through genuine workplace activity.

The limited simulation exception concerns safe fire-extinguisher use. It does not extend to the structural post-tensioning operations themselves.

No. It confirms competence in the operative activities included within the selected pathway and endorsements. Structural design, approval of departures, engineering acceptance and authorisation of specialist work remain the responsibility of appropriately appointed and competent personnel.

Operatives must report information conflicts, defects, unexpected stressing results and other matters beyond their authority.

The bonded pathway is mapped to the Post Tensioning Operative occupation for a Blue Skilled Worker card. Applicants must apply separately, provide the required qualification evidence and hold a valid CITB Health, Safety and Environment Operatives test pass.

The current official mapping does not establish the same route for the unbonded pathway. The exact certificate and pathway should therefore be checked through the official Card Finder before applying.

Application Form