DEPARTMENT OF TRANSPORTATION
DIVISION OF ENGINEERING SERVICES
MATERIALS ENGINEERING AND TESTING SERVICES
Concrete Materials Testing Branch
5900 Folsom Blvd.
Sacramento, CA 95819
916-227-7205
Contract # 042J7404 Cty SM Rte 101 PM 0.9/23.4
Vendor #
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Gavin Newsom, Governor |
DEPARTMENT OF TRANSPORTATIONDIVISION OF ENGINEERING SERVICES MATERIALS ENGINEERING AND TESTING SERVICES Concrete Materials Testing Branch 5900 Folsom Blvd. Sacramento, CA 95819 916-227-7205 |
Contract # 042J7404 Cty SM Rte 101 PM 0.9/23.4 Vendor # |
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REPORT OF LABORATORY TESTING |
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Resident Engineer: |
Peter Lam |
Date Reported: |
04/03/2024 |
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Address: |
TL Number: |
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City: |
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Project Name: REMOVE BRIDGES (PORTIONS), BRIDGE BARRIERS, CONCRETE BARRIERS, & HMA. |
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Prime Contractor: Graniterock (Matt Christie) |
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Sample Taken Date: |
03/06/2024 |
Mix Design: |
577750 |
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Contractor: Unknown |
Location: SAN MATEO COUNTY AT VARIOUS LOCATIONS FROM UNIVERSITY AVENUE OVERCROSSING TO SIERRA POINT OFF RAMP OVERCROSSING |
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Structure unique identifier: 35-0131S |
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Structure name: Sierra point off-ramp separation bridge |
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Location of Pour: West Portion of barrier rail on the Bridge |
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The following testing has been tested in accordance with:
ASTM C39-17a : Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
Capped in accordance with ASTM C617/CTM521
| Specimen | Average diameter of cylinder (in) | Cross sectional area of cylinder (in^2) | Maximum load on cylinder (lb) | Compressive strength of cylinder (psi) | Type of fracture pattern of cylinder |
|---|---|---|---|---|---|
| 1 | 4.01 | 12.63 | 67020 | 5307.0 | 1 |
| 2 | 4.01 | 12.63 | 68726 | 5442.0 | 1 |
| 3 | 4.01 | 12.63 | 70467 | 5580 | 1 |
DIME Test ID: 2024-03-06-19-1
Number of specimens: 3
Compressive strength (to nearest 10 psi): 5440
Age of specimen: 28 days
Certified By: Spencer Adams
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*Subject to final inspection by the Resident Engineer. |
TL- Report of Laboratory Testing