Project: [Project Name] Location: [Site Location] Contract Package: Structural Works NCR Reference: NCR-CIV-.... Date Issued: [Date]
Issued By: [Consultant/Engineer] Issued To: [Main Contractor]
1. Description of Non-Conformance
During post-formwork inspection of reinforced concrete shear wall at Level ...., localized honeycombing and poor concrete surface finish were observed.
The condition was found to be not in compliance with:
Project Specifications, Approved Method Statement for Concrete Works, Relevant standards (BS EN 206/MS EN 206)
This non-conformance may potentially affect durability if left unrectified.
2. Immediate Action Taken
Affected areas were clearly marked and isolated, Structural Engineer assessed the extent and severity of defects and Decision made to proceed with approved repair methodology
3. Root Cause Analysis
The Contractor has identified the following root causes:
Inadequate concrete compaction due to improper vibration technique
Congestion of reinforcement restricting concrete flow, Insufficient supervision during concrete pouring activity, Inexperienced workers assigned to critical structural works
The non-conformance resulted from EXECUTION AND SUPERVISION deficiencies, NOT from DESIGN issues.
4. Corrective Actions Implemented
Honeycombed concrete chipped back to sound substrate, Surface cleaned and prepared in accordance with repair method statement and Approved non-shrink repair mortar applied, Repaired areas properly cured, Post-repair inspection conducted and verified by Engineer
Status: Completed and accepted
5. Preventive Actions
To prevent recurrence, the Contractor has implemented the following:
Mandatory slump test prior to all concrete pours, Enhanced supervision during structural concrete works, Toolbox briefings on concrete placement and vibration techniques, Assignment of experienced personnel for critical activities and Introduction of inspection "hold points" before concrete pouring
6. Risk Assessment Review
The Contractor has reviewed and updated the project Risk Register to reflect this incident. Additional mitigation measures have been incorporated to reduce recurrence risk.
7. Conclusion
The non-conformance has been fully rectified, and preventive measures have been strengthened. The Consultant is satisfied that corrective and preventive actions are adequate, and the NCR is recommended for closure.
NCR Status: Closed
Verified By: [Name / Designation]
Date: [Date]
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