Zapof

Commercial Building Project - Concrete Pour Pre-Authorization Checklist

1. Section 1: Project Identification, Location & Structural Grid Coordinates

This section establishes the precise location and scope of the proposed concrete pour. Accurate grid coordinate documentation is critical for as-built records, quality traceability, and structural verification against approved drawings.

 

Project Name

Project Number

Pour Identification Code

Physical Address or Site Location Description

Structural Grid Start Column Reference

Structural Grid End Column Reference

Structural Grid Start Row Reference

Structural Grid End Row Reference

Pour Area Dimensions & Elevation Data

Dimension Parameter

Length (meters)

Width (meters)

Thickness/Depth (mm)

Top of Pour Elevation (mASL)

Bottom of Pour Elevation (mASL)

A
B
C
D
E
F
1
Primary Pour Zone
25.5
18
350
15.35
15
2
Beam Integration Zone
25.5
1.2
600
15.35
14.75
3
Column Stub Zone
0.8
0.8
750
15.35
14.6
4
 
 
 
 
 
 
5
 
 
 
 
 
 
6
 
 
 
 
 
 
7
 
 
 
 
 
 
8
 
 
 
 
 
 
9
 
 
 
 
 
 
10
 
 
 
 
 
 

Scheduled Pour Date & Start Time

Estimated Pour Duration (hours)

Current Ambient Temperature (°C)

Weather Forecast for Pour Window

Are weather conditions within acceptable parameters per project specifications?

 

Specify protective measures for marginal conditions:

 

Detail contingency plan or reason for postponement:

Concrete Delivery Access Route Description

Is the access route clear, stable, and rated for fully loaded mixer trucks?

 

Describe required remedial actions:

Safety Exclusion Zone Perimeter & Barricading Details

2. Section 2: Rebar Placement, Cover Verification & Formwork Integrity Inspection

This section documents the critical inspection of reinforcement steel and formwork systems. Any non-conformance must be rectified prior to pour authorization. Follow-up questions will capture defect details and corrective actions. Photographic evidence is mandatory for all inspection points.

 

Has the rebar placement been inspected and approved against the latest structural drawings?

 

List all drawing revision discrepancies:

Rebar Detail Verification Matrix

Component Type

Bar Size/Grade

Spacing (mm)

Design Cover (mm)

Actual Cover Min (mm)

Actual Cover Max (mm)

Within Tolerance?

A
B
C
D
E
F
G
1
Top Mesh
T16-200
200
35
34
38
Yes
2
Bottom Mesh
T20-150
150
45
44
48
Yes
3
Edge Beam
T25-100
100
50
49
53
Yes
4
 
 
 
 
 
 
 
5
 
 
 
 
 
 
 
6
 
 
 
 
 
 
 
7
 
 
 
 
 
 
 
8
 
 
 
 
 
 
 
9
 
 
 
 
 
 
 
10
 
 
 
 
 
 
 

Are all rebar laps and splices positioned correctly with adequate overlap lengths?

 

Detail lap splice non-conformances:

Are rebar chairs, spacers, and supports adequate to maintain cover during pour operations?

 

Specify additional support requirements:

Is the formwork system constructed from approved materials and in sound condition?

 

Describe formwork defects or material issues:

Formwork Deflection Under Load (measured in mm)

Is measured deflection within design limits?

 

Specify required formwork reinforcement:

Formwork Release Agent Application Details

Are all embedded items (conduits, bolts, plates) correctly positioned and secured?

 

List all embedment discrepancies:

Select all formwork inspection items that have been physically verified:

Upload Rebar Placement Photographs (minimum 6 angles)

Choose a file or drop it here

Upload Formwork Interior & Support System Photographs

Choose a file or drop it here

Has a pre-pour inspection meeting been conducted with all trade supervisors?

 

Explain communication gaps and mitigation:

3. Section 3: Concrete Mix Design Specifications, Temperature Controls & Slump Test Protocol

This section captures the concrete mix parameters and quality control testing regime. Temperature differentials and slump consistency directly impact structural integrity and finish quality. All test equipment must be calibrated and ready.

 

Approved Mix Design Reference Number

Specified Concrete Strength Grade

Maximum Aggregate Size (mm)

Cement Type & Class

Specified Slump Range (mm)

Maximum Permissible Water-Cement Ratio

Select Admixtures Included in Mix Design:

Batch Plant Supplier Name & Facility Code

Maximum Transit Time from Plant to Site (minutes)

Current Substrate Temperature (°C)

Maximum Allowable Concrete Placement Temperature (°C)

Will ambient conditions require temperature-controlled delivery or ice addition?

 

Specify temperature control methodology:

Slump Test & Sampling Location Plan

Test Location ID

Grid Reference

Scheduled Test Time

Sample Batch Number

Target Slump (mm)

Critical Control Point?

A
B
C
D
E
F
1
LOC-01
C-D/8-9
9:30 AM
1
140
Yes
2
LOC-02
E-F/10-11
10:15 AM
2
140
 
3
LOC-03
G/12
11:00 AM
3
140
Yes
4
 
 
 
 
 
 
5
 
 
 
 
 
 
6
 
 
 
 
 
 
7
 
 
 
 
 
 
8
 
 
 
 
 
 
9
 
 
 
 
 
 
10
 
 
 
 
 
 

Is calibrated slump test equipment available on-site and ready for use?

 

Specify equipment calibration status and availability:

Minimum Frequency of Slump Testing (per cubic meters)

Are standby test cylinders, cube molds, and curing facilities prepared?

 

Detail curing facility preparation status:

Contingency Plan for Out-of-Specification Slump or Temperature Results

4. Section 4: Pour Sequence Strategy, Vibration Equipment Readiness & Placement Logistics

This section verifies the operational readiness of placement equipment and confirms the pour sequence strategy. Proper vibration prevents voids and ensures consolidation, while a clear sequence minimizes cold joints and structural weaknesses. Communication protocols are essential for coordination.

 

Pour Sequence Description (start point, direction, section breaks)

Maximum Allowable Time Between Adjacent Pour Sections (minutes)

Will construction joints be required? If yes, are they at approved locations?

 

Specify construction joint locations and preparation details:

Primary Concrete Placement Method

 

Specify boom reach capability and pump station location:

 

Specify line layout and pipe diameter:

Estimated Concrete Pour Rate (cubic meters per hour)

Vibration Equipment Inventory & Readiness Check

Equipment ID

Type/Model

Vibration Frequency (Hz)

Tip Diameter (mm)

Equipment Condition

Tested & Operational?

A
B
C
D
E
F
1
VIB-01
High-Frequency Poker
200
50
 
Yes
2
VIB-02
High-Frequency Poker
200
60
 
Yes
3
VIB-03
Surface Vibrator
150
300
 
Yes
4
 
 
 
 
 
 
5
 
 
 
 
 
 
6
 
 
 
 
 
 
7
 
 
 
 
 
 
8
 
 
 
 
 
 
9
 
 
 
 
 
 
10
 
 
 
 
 
 

Is backup vibration equipment available on-site in case of primary equipment failure?

 

Specify backup equipment arrangement:

Vibrator Spacing Plan (maximum distance between insertion points in mm)

Maximum Vibration Duration Per Insertion (seconds)

Are vibration operators trained and certified for proper technique?

 

Detail operator competency status:

Communication Protocol Between Pour Crew, Pump Operator, and Testing Team

Is adequate lighting available for the entire pour area if operation extends beyond daylight hours?

 

Specify lighting arrangement and backup power:

Curing Materials & Method Ready for Immediate Application After Screeding

Is emergency wash-down and spill containment equipment positioned nearby?

 

Detail spill response preparedness:

5. Section 5: Professional Sign-Off, Authorization & Hold-Point Release

This final section constitutes the formal authorization to proceed with the concrete pour. The Site Structural Engineer and Quality Control Manager must independently verify all preceding sections and provide digital signature confirmation. Any conditions or reservations must be explicitly documented. This sign-off represents acceptance of responsibility for structural integrity and quality compliance.

 

Site Structural Engineer: Have you physically inspected the rebar and formwork and verified compliance with structural drawings?

 

Specify areas not personally inspected and reason:

Site Structural Engineer Full Name

Professional Registration Number

Engineering Discipline & Jurisdiction

Site Structural Engineer Digital Signature

Engineer Sign-Off Timestamp

Quality Control Manager: Have all quality control pre-checks been completed and documented?

 

List outstanding QC documentation items:

Quality Control Manager Full Name

Quality Certification Number

Quality Control Manager Digital Signature

QC Manager Sign-Off Timestamp

Do both signatories unconditionally authorize the pour to proceed?

 

Detail all conditions, reservations, or required corrective actions before authorization:

Final Authorization Comments & Hold-Point Release Statement

Final Authorization Issue Time

Has this form been reviewed and acknowledged by the Concrete Foreman?

 

Explain communication status with placement crew:

6. Additional Documentation & Post-Pour Follow-Up Scheduling

This supplementary section ensures all supporting documentation is attached and establishes the schedule for post-pour quality verification activities. Proper closure of the pre-pour process includes planning for subsequent inspections.

 

Attached Supporting Documents (select all that apply):

Upload Consolidated PDF of All Supporting Documents

Choose a file or drop it here
 

Scheduled Post-Pour Surface Finish Inspection

Scheduled Concrete Strength Test (Cube/Cylinder Break)

Special Monitoring Requirements During Initial Curing Period

Is a follow-up structural survey required after formwork removal?

 

Schedule structural survey date:

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