Summary for Test 2026-03-23-41-1
Test performed: ASTM C39-21Project Information
| Project Identifiers | Project ID: 1001825 DEA: 040J5404 EFIS: 0414000011 |
|---|---|
| DIST-CO-RTE-PM | 04-CC-24-R5.8/R6.2 |
| Award Date | 10/30/2026 |
| Closeout Date | Not set |
| Work Description | Caldecott Tunnel Bores 1, 2, & 3 Rehab |
| Location Description | Not set |
| QA Service Level | 1 (Verified on 11/18/2025) |
Sample Information
| Sample Taken Date | 03/23/2026 | Sample Unique Key | 41 |
|---|---|---|---|
| Date that the sample was received by the laboratory/organization performing the testing | 03/26/2026 | Sample type | Informational |
| A brief description of the sample | Core samples from Bend 1, Niche 1 | The quantity of what the sample constitutes | Bore 1: Niche 1 |
| From where was the sample collected | Job Site | First name of sampler or witnessed by | Dylan |
| Last name of sampler or witnessed by | LaRose | Title of sampler | Field Technician |
| Telephone number of sampler | Laboratory sample identification | ||
| Linked DIME Sample ID | The fabricator/manufacturer/facility name | Caldecott Tunnels | |
| Transportation Laboratory (TL) Number | Inspector Lot Number from the Transportation Laboratory (TL) Form | ||
| Structure unique identifier | Structure name | Caldecott Tunnels | |
| Bid Item | Not set |
Material Information
| Material Type | Concrete Core | Detail description | 3 Cores taken form Bore 1 Niche 1 of the Caldecott Tunnels |
|---|---|---|---|
| Structure names | Calldecot Tunnels | Type of material | Concrete core |
Test Details
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DIME Sample ID: 2026-03-23-41
DIME Test ID: 2026-03-23-41-1
Testing Lab: Kleinfelder - Hayward
Test Method: ASTM C39-21: Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
Test Release Date: 2026-03-31
Test Results
Unit system used?: US Units
Number of specimens: 3
Test performed: With no density determined
Input Type: Measured
Tester's full name: Bryce
Date of test: 03/30/2026
Capped in accordance with?: ASTM C617 - Sulfur Mortar Cap
Apparent mass of submerged cylinder 1: 9 lb
Average diameter of cylinder 1: 3.33 in
Average diameter of cylinder 2: 3.33 in
Average diameter of cylinder 3: 3.33 in
Maximum load on cylinder 1: 60570 lb
Maximum load on cylinder 2: 68287 lb
Maximum load on cylinder 3: 65189 lb
Type of fracture pattern of cylinder 1: 3
Type of fracture pattern of cylinder 2: 3
Type of fracture pattern of cylinder 3: 3
Comment on any defect in either specimen or caps (Max 250 Characters): no data
Correction factor for cylinder 1: 1.00
Correction factor for cylinder 2: 1.00
Correction factor for cylinder 3: 1.00
Age of specimen: 7 days
Age of specimen in hours: 0 hours
Cross sectional area of cylinder 1: 8.71 in^2
Cross sectional area of cylinder 2: 8.71 in^2
Cross sectional area of cylinder 3: 8.71 in^2
Compressive strength of cylinder 1: 6950.0 psi
Compressive strength of cylinder 2: 7840.0 psi
Compressive strength of cylinder 3: 7480 psi
Compressive strength (to nearest 10 psi): 7420 psi
Serial number of delivery ticket, if available: no data
General comments (publicly viewable) (Max 1000 characters): 2 day prep, 5 day cure = 7 day breaks. Cored sampled using ASTM C42, and tested under compliance C39 per C42 spec
Test was verified on 3/31/2026 ✔