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Pre-job site assessment

Concrete Retrofitting

Site Assessment Form · Operation/Procedure  |  Rev 1.0
A

Project Basics

Project Name / Building Name
Project Location
Client / Company Name
Contact Person
Mobile / WhatsApp
Email ID
Type of ProjectSelect all that apply
Is the Structure New or Existing?
Approximate Age of Structure
Is the Building Currently Occupied?
Expected Start Date
Work Shift
B

Retrofitting Requirement

Why Is Retrofitting Required?Select all that apply
What Is the Main Concern?Select all that apply
Has a Structural Engineer Identified the Problem?
Structural Assessment / Report Available?
Retrofitting Design / Drawing Available?
ℹ Structural assessment Concrete retrofitting should be based on the actual condition and structural requirements of the member. Where structural drawings, assessment reports or strengthening designs are available, they should be reviewed before the repair methodology is finalised.
C

Structural Member

Structural ElementSelect all that apply
How Many Members?
Approx. Member Dimensions
mm / m
Number of Floors Affected
Approximate Area / Quantity
Access Available Around Member?
D

Existing Concrete Condition

Concrete Condition
Visible Cracks Present?
Crack TypeSelect all that apply
Approximate Crack Width
Are Cracks Active / Moving?Affects injection system selection
Concrete Spalling Present?
Reinforcement Exposed?
Reinforcement Corroded?Requires section loss assessment
Delamination / Hollow Concrete?
Concrete Honeycombing?
Significant Section Loss?May require structural engineer review
Exposure EnvironmentSelect all that apply
Carbonation / Chloride Testing?
ℹ Concrete damage Cracking, spalling, delamination and reinforcement corrosion can have different causes and require different repair or strengthening approaches. Damaged and unsound concrete is assessed and removed before the appropriate repair or strengthening system is installed.
E

Structural Loading & Performance

Has the Building Use Changed?
Previous Use
Proposed Use
Additional Load Expected?
Type of Additional LoadSelect all that apply
Heavy Equipment Being Installed?
Increased Span / Opening Required?
Walls Being Removed or Altered?
Strengthening for Deflection Control?
Seismic Strengthening Required?
ℹ Change of loading or use A structural member that was adequate for its original loading may require strengthening when building use, equipment, storage, spans or other loads change. The required strengthening system should follow the structural design and assessment.
F

Existing Reinforcement & Structural Information

Structural Drawings Available?
Reinforcement Details Available?
Concrete Grade Known?
Approximate Concrete Grade
Previous Structural Modifications?
Previous Repairs / Retrofitting?
Describe Previous Work
Rebar Scanning / Cover Meter Testing?
Concrete Strength Testing?
ℹ Existing structural information Available drawings, reinforcement details and testing results help determine the existing capacity and reinforcement arrangement. Where information is unavailable, suitable site investigation or testing may be required before strengthening is finalised.
G

Retrofitting / Repair System

Type of Retrofitting RequiredSelect all that apply
Section Enlargement Required?
Additional Reinforcement Required?
FRP / CFRP Strengthening Required?
CFRP ApplicationSelect all that apply
CFRP Form
Approx. Number of Layers
Member Corners Rounded?Sharp corners must be rounded before wrapping
Substrate Dry & Sound for Bonding?Moisture and weak concrete reduce CFRP bond
Protective Coating Over CFRP?Select all that apply
Epoxy / PU Injection Required?
Corrosion Protection Required?
Bonding / Interface Treatment Required?
ℹ Carbon fibre wrapping Carbon fibre reinforced polymer (CFRP) sheets and laminates are bonded to concrete with structural epoxy to add flexural, shear and confinement capacity. It adds almost no weight or section depth and does not corrode, which suits bridges, hospitals, hotels and older structures that must stay in service.
ℹ Retrofitting system selection The strengthening method depends on the existing member, structural demand, damage mechanism, available geometry, access and required increase in capacity. The final system should be selected from the approved structural repair or strengthening design.
H

Site Access & Execution Conditions

Retrofitting Area Accessible?
Scaffolding Required?
Work Over Live Traffic or Railway?Affects safety measures, permits and working windows
Traffic Block / Possession Windows
Authority Approvals Required?Select all that apply
Under-Deck / Soffit Access Method
Vibration From Traffic During Work?Affects curing of injection and bonding resins
Material Lifting Required?
Temporary Support / Propping Required?Must be confirmed before concrete removal begins
Structural Member Can Be Taken Out of Service?
Building Occupied During Work?
3-Phase Power Available?Required for cutting, drilling and mixing equipment
Water Available?
Restricted Working Hours?
Other Site Restrictions
I

Testing, Quality & Handover

Concrete Strength Testing Required?
Rebar Scanning Required?
Load Testing Required?
Crack Monitoring Required?
Pull-Off / Bond Strength Testing?
Third-Party Inspection Required?
Structural Engineer Inspection Required?
As-Built Drawings Required?
Handover DocumentationSelect all that apply
Additional InformationAttach photographs & drawings separately
✓

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OPS

How We Deliver Your Project

01
Structural Assessment & Site Inspection

The affected structural members are inspected to understand their existing condition, visible damage, access conditions and intended strengthening requirement. Available structural drawings, assessment reports and strengthening designs are reviewed before work begins.

Structural assessmentExisting condition review
02
Member Identification & Condition Mapping

The structural members requiring treatment are identified and their condition is documented. Cracks, spalling, exposed reinforcement, corrosion, delamination, honeycombing and other visible defects are mapped before repair.

Crack mappingDamage assessment
03
Temporary Support & Work Area Preparation

Where required by the approved strengthening methodology, temporary supports, propping or load restrictions are established before damaged concrete is removed or strengthening work begins.

Where structurally required
04
Concrete Removal & Surface Preparation

Unsound, loose and deteriorated concrete is carefully removed until sound substrate is reached. The exposed concrete and reinforcement are cleaned and prepared for the specified repair or strengthening system.

Unsound concrete removalSurface preparation
05
Reinforcement Assessment & Corrosion Treatment

Exposed reinforcement is inspected for corrosion and section loss. Corroded steel is cleaned and treated using the specified corrosion-protection system. Additional reinforcement is installed where required by the approved strengthening design.

Reinforcement treatmentAs specified
06
Crack & Defect Repair

Cracks and localised defects are repaired using suitable compatible materials. Depending on the crack condition and approved methodology, treatment may include resin injection, flexible injection, repair mortar or other specified systems.

Epoxy / PU / Repair mortar as specified
07
Interface & Bonding Preparation

The existing concrete surface is prepared to achieve the required bond with the new repair or strengthening material. Bonding agents, mechanical preparation or other interface treatments are applied where specified.

As per approved system
08
Structural Strengthening

The selected strengthening system is installed according to the approved structural design. Depending on the project, this may include micro-concrete or RCC jacketing, steel strengthening, FRP / CFRP reinforcement, section enlargement or other approved strengthening methods.

For carbon fibre wrapping, corners are rounded, the substrate is ground and primed, and CFRP sheets or laminates are bonded with structural epoxy in the designed number of layers and orientation — then finished with a UV, fire or plaster protective coat where specified.

System and dimensions as designedCorner roundingEpoxy-bonded CFRPProtective coat where specified
09
Micro Concrete / Repair Material Placement

Where specified, micro concrete or suitable structural repair material is placed into the prepared strengthening zone. Formwork and confinement are maintained as required to achieve complete filling and proper consolidation.

Where specified
10
Curing & Protection

Repair and strengthening materials are allowed to cure under the conditions required by the selected system. The treated structural members are protected from impact, loading and disturbance during the specified curing period.

Curing as per system specification
11
Testing & Quality Verification

Where required, the completed repair or strengthening work is inspected and tested. Testing may include concrete strength, bond strength, crack monitoring, load testing or other verification specified for the project.

As specified by design / consultant
12
Final Inspection & Handover

The completed structural repair or strengthening work is inspected against the approved scope and methodology. Photographs and applicable test or completion records are compiled for handover.

Final inspectionDocumentationHandover
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