Project Information

Project ID: 994803 DEA: 043J0704 EFIS: 0415000077 QA Service Level: 1

DIST-CO-RTE-PM: 04-CC-80-10.1/13.5

Work Description: Remove PCC and AC, place PCP and AC Resurfacing.

Location Description: Construction on State Highway in Contra Costa County in Hercules and Crockett from Route 80/4 separation to 0.1 mile west of Crockett Viaduct.

Contractor Name: VANGUARD CONSTRUCTION, INC.

Contractor Address: 651 ENTERPRISE CT, LIVERMORE, CA 94550

Resident Engineer: Ta Seng Structure Rep.: Unknown

Sample Information

DIME Sample ID: 2023-09-03-55

TL Number from the TL Form:

Sample Submitted By Organization: CT D04 - Richmond Field Laboratory

Sample Organization Contact: (510) 231-7151

Type of Sample: Quality Assurance

Type of Material: Concrete

Sample Taken Date: 09/03/2023

Date that the sample was received by the laboratory/organization performing the testing: 09/04/2023

The quantity of what the sample constitutes: Concrete Beams

A brief description of the sample: Flexural Strength on Concrete Beams

From where was the sample collected: Job Site

Laboratory sample identification:

Structure unique identifier:

Structure name:

The fabricator/manufacturer/facility name: Vanguard Mobile Hercules Plant

Material Information

The concrete mix design number: HE4x12BM

The truck number from where the sample was collected:

The batch plant ticket number from where the sample was collected: none

Concrete batch plant:

The fabricator/manufacturer designation for the sample:

A detailed description of where the material sample was collected: Concrete Truck

Where the material sample would have been placed if not sampled:

From Lot No.:

Bag Lot No.:

Test Results

Test 1 of 1

DIME Test ID: 2023-09-03-55-12

Test Method: CTM 524-March 2013: Method of Test for Flexural Strength Of Rapid Strength Concrete

Verified Date: 10/13/2023

Date Tested: 09/04/2023

Submitted By Organization: CT D04 - Richmond Field Laboratory

Organization Address: 3401 Regatta Boulevard,

Organization City: Richmond

Organization State: CA

Organization Zipcode: 94508

Organization Email: santiago.sequeira@dot.ca.gov

Organization Phone: (510) 385-7641

General Comments for this Test: 2-18A Vanguard Mobile Hercules Plant A Beam FAILED

Test Result Compliance: does not comply

Additional Comments When Verified:

Number of specimens	1
Does the testing machine measure load or stress on the beam specimen?	Stress
Fracture initiates in the tension surface	Within the Middle Third of the Span Length
Fracture occurred at a capped section	Yes
Is a beam dimensional correction factor used?	Yes
Age of specimen	no data0 days
Modulus of rupture	280 psi

Tests Assigned to this Sample