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Method Statement: On‑Site 3D Concrete Printing of Building Walls (Robotic Extrusion) inspection and test plan example.

Inspection and Test Plan for Method Statement: On‑Site 3D Concrete Printing of Building Walls (Robotic Extrusion)

AI-assisted inspection and test plan connected to a method statement, with PDF and Excel export.

Published 04 Nov 2026 Rev. 00 3 views 1 downloads
About this ITP: This ITP defines staged inspections and tests for on-site 3D printed walls, including hold/witness points from setup and trials through production, curing, and final acceptance.

More than a static template

Unlike a downloadable Word or PDF template, this ITP is an AI-assisted editable starting point directly connected to its method statement. Every inspection activity, hold point, and acceptance criterion is structured and ready to adapt to your project.

  • AI-assisted customization — Tailor inspection activities and acceptance criteria to your specific project scope.
  • Linked method statement — This ITP is connected to the corresponding method statement describing the work sequence.
  • Multiple export formats — Download as a formatted PDF or editable Excel spreadsheet.
  • Editable starting point, not a final document — Review and verify all content against your project specifications and standards before use.

What you can customize

When you save this ITP to your account, every inspection row becomes editable. You can add, remove, or modify:

  • Inspection activity — Description of what is being inspected.
  • Inspection type — Hold point (H), Witness point (W), Review (R), or Monitor (M).
  • Responsibility — Contractor, subcontractor, engineer, or client.
  • Frequency — How often the inspection occurs.
  • Acceptance criteria — Referenced standard or specification requirement.
  • Records — Forms, test reports, or checklists required as evidence.

Why this ITP is used

To ensure printed walls comply with approved design, standards, and project specifications through controlled inspections and tests.

Who uses this inspection and test plan

Contractor’s QA/QC and site teams, the Engineer/Client Representative, and the Designer/SER.

When this ITP is prepared and submitted

From pre-construction submittals and setup through trial and production printing, curing, testing, and final handover.

Who receives or approves this ITP

Engineer/Client Representative for approval prior to commencement.

Inspection scope

Submittals, equipment calibration, foundation interfaces, fresh printability, geometry, reinforcement/embeds, curing, and hardened testing.

Typical hold, witness, and review points

Hold: Submittals, trial print, foundation interface, top connections, final acceptance. Witness: Calibrations, fresh tests, geometry, reinforcement, sampling.

Typical inspection records

ITP checklists, calibration forms, print and batch logs, survey/as-built reports, lab results, photos, NCRs, handover certificates.

Important approval note

This ITP is an AI-assisted editable starting point, not a pre-approved document. Before use on any project, all inspection activities, hold points, and acceptance criteria must be reviewed and approved by the relevant parties (superintendent, principal contractor, or client representative) in accordance with your contract and project quality plan.

Always verify acceptance criteria against your applicable drawings, specifications, and regulatory requirements. Hold points must be confirmed with the relevant authority before work proceeds past that point.

Inspection and test plan

Activity Inspection / Test Acceptance Criteria Responsibility Record
Submittals and approvals Review/approval of method, ITP, mix qualification, print files (frozen version). Hold Point (H). All mandatory documents approved prior to site works. Contractor QA/QC; Engineer Approval letters; transmittals
Equipment setup and calibration E-stop test; nozzle height calibration; flow check; positional accuracy test. Frequency: each mobilization and after major maintenance. Meets OEM/project tolerances [Verify]. Printing Supervisor; OEM Tech; Engineer (W) Calibration forms; certificates
Foundation interface inspection Survey vs BIM; cleanliness; bonding agent (if specified); dowel locations/levels. Within specified tolerances [Verify]; surface prepared/approved. Surveyor; Site Engineer; Engineer (H) Interface inspection report; photos
Material printability (fresh) Extrudability/buildability/open time per approved protocol. Frequency: start of each shift and each batch change [Verify]. Within approved mix window [Verify]. Materials Engineer; QA/QC; Engineer (W) Printability logs; batch tickets
Pre-production trial print Dimensional survey; visual quality; trial embeds; green strength/bond checks if specified. Trial accepted by Engineer before production. Contractor; Engineer (H) Trial print acceptance certificate
Layer geometry control Measure layer height and bead width at defined intervals (e.g., every 3–5 m or every N layers) [Verify]. Within layer geometry tolerances [Verify]. Printer Operator; QA/QC Geometry check sheets; photos
Wall plumbness and alignment Plumbness with digital level/total station each wall panel and at corners. ≤ project limit (e.g., ≤10 mm in 3 m) [Verify]. Surveyor; QA/QC; Engineer (W) Survey report
Openings and embeds positioning Check size/position of doors/windows; location of boxes/sleeves vs model. Frequency: each embed/opening. Within ±5–15 mm as specified [Verify]. MEP Coordinator; QA/QC; Engineer (W) Embed inspection records
Reinforcement placement and post-grouting Bar size/grade/spacing/cover; grout flow/bleed; grout strength tests (if specified). Per structural design; grout per ASTM C1107 [Verify]. Site Engineer; SER/Engineer (W) Rebar/grout checklists; batch tickets; test results
Interruption/restart joint Surface roughening/cleaning; bonding agent (if any); overlap length; first layer re-height calibration. Per approved restart procedure [Verify]. Printing Supervisor; Engineer (W for first) Restart log; photos
Curing and protection Check curing method/duration; environmental logs (T/RH/wind). Per specification and manufacturer guidance [Verify]. Site Engineer; QA/QC Curing records; weather logs
Hardened property tests Compressive strength (printed coupons/cores) at 7/28 d; density/absorption; shrinkage; interlayer bond if specified. Frequency: per lot/segment [Verify]. Meet/exceed design criteria [Verify]. QA/QC; Independent Lab; Engineer (W for sampling) Lab test reports; chain of custody
As-built survey and final inspection Laser scan vs BIM; visual finish; completeness; closure of NCRs. Within dimensional tolerances; all documents complete. Surveyor; QA/QC; Engineer (H) As-built package; completion certificate

This table is a read-only public reference. Download the PDF or Excel version, or customize this ITP to edit it for your project.

Frequently asked questions

Set by the project QA plan; commonly at defined intervals by length or layers (e.g., every 3–5 m or each N layers) and at all corners/openings [Verify].

Yes, projects typically require printed coupon tests and may require cores from non-critical areas, with acceptance versus design values [Verify].

They are defined in the ITP activities; ‘H’ indicates Hold requiring Engineer approval before proceeding, ‘W’ indicates Engineer witness at the specified stage.

Related method statement

This Inspection and Test Plan is associated with the Method Statement: On‑Site 3D Concrete Printing of Building Walls (Robotic Extrusion) method statement, which describes the step-by-step construction sequence, resources, materials, equipment, safety controls, and environmental controls for this activity.

View the Method Statement: On‑Site 3D Concrete Printing of Building Walls (Robotic Extrusion) method statement →

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