Granular Sub-Base Test
Road QC GSB Test Report Excel is a complete, ready-to-use documentation sheet designed specifically for Granular Sub-Base (GSB) layer quality control in highway and road projects. This professionally built QC format allows site engineers, contractors and consultants to record and validate all essential laboratory and field test results without formatting errors, missing checkpoints or calculation mistakes — ensuring smooth approval during inspections and technical audits.
Granular Sub-Base is a crucial load-spreading layer consisting of well-graded crushed aggregates placed and compacted above the subgrade. It distributes wheel loads, improves drainage and enhances stability for the upper pavement layers. Any deviation in gradation, density, water absorption, CBR value or compaction effort can significantly impact pavement performance and accelerate surface distress. This GSB QC sheet ensures each performance-critical parameter is thoroughly tested and traceably documented to avoid settlement, rutting and premature failure in higher pavement layers.
📌 Key Tests Covered in the GSB QC Excel
The sheet includes the complete set of essential GSB QC test formats, including:
✔ Gradation (Grade I, II, III, IV, V & VI)
✔ Water Absorption
✔ Aggregate Impact Value (AIV)
✔ California Bearing Ratio (CBR)
✔ Proctor Test — MDD & OMC (Laboratory Compaction Test)
✔ Atterberg Limits (if applicable as per project specifications)
✔ Field Dry Density / Compaction Test
All test sheets are pre-formatted so engineers can input values directly and instantly produce a clean, consultant-friendly and audit-ready QC report.
🧾 Compliance and Standards
The GSB QC sheet aligns with:
🔹 MORTH – Specifications for Road & Bridge Works
🔹 IRC Guidelines for Granular Layers
🔹 Relevant IS Codes for material testing
This ensures seamless approval during:
• PMC / Authority Engineer inspections
• Third-Party Quality audits
• Client / Concessionaire evaluations
• Running bill (RA bill) submissions
🚀 Who can use this GSB QC Excel
This QC documentation sheet is suitable for:
• Highway EPC contractors
• QC / QA engineers
• PMC / Authority engineers
• Third-party inspection agencies
• DPR / Design consultants
• Government and private clients
• Civil engineering learners for QC practical training
🎯 Benefits of using this GSB QC Sheet
✔ Ready-to-use QC test formats — no manual formatting
✔ Ensures no laboratory or field QC test is omitted
✔ Professional and consultant-friendly report layout
✔ Fully meets MORTH / IRC testing requirements
✔ Eliminates calculation and documentation errors
✔ Supports faster RA bill processing and reduces site-level queries
Version Type
This product is available in three variations:
| Version | Details |
|---|---|
| Basic | Empty Excel — manual entry version |
| Standard | Excel with formulas — Auto-Calculation, Test Notes & Auto Remarks |
| Premium | Includes both Basic + Standard files |
Download Information
After purchase, the file becomes available for instant download.
The download link remains active for 14 days, allowing easy access and backup.
Once downloaded, the file can be used for lifetime without restrictions and runs smoothly on laptops, mobiles and tablets using any Excel-supported application.
Explore More QC Excel Templates
For Road, Building, Culvert, Drainage and other civil engineering QC test formats, explore the complete Civatrix QC library:
🔗 https://civatrix.com/shop/
Reference Standards and Official Guidelines
📌 MORTH Specifications & Circulars
🔗 https://morth.nic.in
📌 BIS – IS Codes for Road Materials & Testing
🔗 https://standardsbis.bsbedge.com
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