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Concrete Test Report

Date :10/30/2025
Project No :2025C222
Client Company :C. W. MATTHEWS CONTRACTING CO., INC.
Arrival Time :10/30/2025 08:00
Onsite Hours :9:00
Name of the Project :Rivian Plant, I-20 Ramp
Project Location :Rutledge
Weather :Sunny
Departure Time :10/30/2025 17:00
ASEC Technician Name :Sean Willett

Concrete Placement Information

Location(S): N/A
Testing: 1 Set of concrete specimens (4 per set) were cast during the cast-in-place concrete pour at the above referenced location, in accordance with ASTM C31. The specimen will remain on site for the initial 24-48 hrs curing.
Compliance:

Field placement of concrete appeared to be in accordance with the project specifications (i.e., slump, temperature, etc) (refer to remarks below)

Deviations and/or noncompliances were noted during the field placement (refer to remarks below)
Specimen
Pick Up: 1 Sets of concrete specimens/ 4 specimen per set were picked up & transported to AS Engineering and Consulting LLC (ASEC) for curing and testing in accordance with ASTM C39, C670/1231
Field Curing: Specimen were stored for the initial 24 hours.
Near the poured structure
In an insulated curing box
Other
Remarks:

Field Test Data

Specimen Type Selection : Cylinder

Set Number :N/A
Date Sampled :N/A
Sampled By :N/A
Contractor :N/A
Truck Number :N/A
Time Batched :N/A
Location of Placement :N/A
Number of samples cast :4
Ambient Temperature (°f) :53
Slump (in.) :5
Water added (gal.) :N/A
Laboratory Number :N/A
Time Sampled :N/A
Weather Condition :Sunny
Concrete Supplier :N/A
Mix ID :N/A
Quantity of Load (cu. yd.) :N/A
Sample Cast :1
Specified Strength :N/A
Concrete Temperature(°f) :60
Air Content (%) :9
Unit Weight (pcf) :138.4

Strength Test Results

Specimen Number Scheduled Test Date Date Tested Age (days) Dia(in.) Area (sq in.) Maximum Loads (lbf) Strength (lbs) % Design Strength Type of Fracture

UNLESS OTHERWISE SPECIFIED, TESTS WERE PERFORMED IN ACCORDANCE WITH ASTM TEST METHODS C31, C39, C138, C143, C173, AND C1064. FRACTURE TYPE INDICATED BY NUMBER.

(Type 1) Cone (Type 2) Cone-split (Type 3) Vertical (Type 4) Shear (Type 5) Edge Fracture (Type 6) Pointed

Field Test Data

Specimen Type Selection : Cylinder

Set Number :N/A
Date Sampled :N/A
Sampled By :N/A
Contractor :N/A
Truck Number :N/A
Time Batched :N/A
Location of Placement :N/A
Number of samples cast :4
Ambient Temperature (°f) :54
Slump (in.) :6
Water added (gal.) :N/A
Laboratory Number :N/A
Time Sampled :N/A
Weather Condition :Sunny
Concrete Supplier :N/A
Mix ID :N/A
Quantity of Load (cu. yd.) :N/A
Sample Cast :1
Specified Strength :N/A
Concrete Temperature(°f) :60
Air Content (%) :9
Unit Weight (pcf) :137.8

Strength Test Results

Specimen Number Scheduled Test Date Date Tested Age (days) Dia(in.) Area (sq in.) Maximum Loads (lbf) Strength (lbs) % Design Strength Type of Fracture

UNLESS OTHERWISE SPECIFIED, TESTS WERE PERFORMED IN ACCORDANCE WITH ASTM TEST METHODS C31, C39, C138, C143, C173, AND C1064. FRACTURE TYPE INDICATED BY NUMBER.

(Type 1) Cone (Type 2) Cone-split (Type 3) Vertical (Type 4) Shear (Type 5) Edge Fracture (Type 6) Pointed

Field Test Data

Specimen Type Selection : Cylinder

Set Number :N/A
Date Sampled :N/A
Sampled By :N/A
Contractor :N/A
Truck Number :N/A
Time Batched :N/A
Location of Placement :N/A
Number of samples cast :4
Ambient Temperature (°f) :54
Slump (in.) :3.5
Water added (gal.) :N/A
Laboratory Number :N/A
Time Sampled :N/A
Weather Condition :Sunny
Concrete Supplier :N/A
Mix ID :N/A
Quantity of Load (cu. yd.) :N/A
Sample Cast :1
Specified Strength :N/A
Concrete Temperature(°f) :61
Air Content (%) :7.5
Unit Weight (pcf) :140.8

Strength Test Results

Specimen Number Scheduled Test Date Date Tested Age (days) Dia(in.) Area (sq in.) Maximum Loads (lbf) Strength (lbs) % Design Strength Type of Fracture

UNLESS OTHERWISE SPECIFIED, TESTS WERE PERFORMED IN ACCORDANCE WITH ASTM TEST METHODS C31, C39, C138, C143, C173, AND C1064. FRACTURE TYPE INDICATED BY NUMBER.

(Type 1) Cone (Type 2) Cone-split (Type 3) Vertical (Type 4) Shear (Type 5) Edge Fracture (Type 6) Pointed

Field Test Data

Specimen Type Selection : Cylinder

Set Number :N/A
Date Sampled :10/30/2025
Sampled By :Sean Willett
Contractor :CWM
Truck Number :N/A
Time Batched :N/A
Location of Placement :i-20 ramp by rest area
Number of samples cast :4
Ambient Temperature (°f) :55
Slump (in.) :4
Water added (gal.) :N/A
Laboratory Number :N/A
Time Sampled :16:00
Weather Condition :Sunny
Concrete Supplier :CWM
Mix ID :N/A
Quantity of Load (cu. yd.) :N/A
Sample Cast :1
Specified Strength :N/A
Concrete Temperature(°f) :60
Air Content (%) :13
Unit Weight (pcf) :135

Strength Test Results

Specimen Number Scheduled Test Date Date Tested Age (days) Dia(in.) Area (sq in.) Maximum Loads (lbf) Strength (lbs) % Design Strength Type of Fracture

UNLESS OTHERWISE SPECIFIED, TESTS WERE PERFORMED IN ACCORDANCE WITH ASTM TEST METHODS C31, C39, C138, C143, C173, AND C1064. FRACTURE TYPE INDICATED BY NUMBER.

(Type 1) Cone (Type 2) Cone-split (Type 3) Vertical (Type 4) Shear (Type 5) Edge Fracture (Type 6) Pointed

Technician Signature / DateSean Willett, October 30, 2025
Reviewer Name / DateKenneth Mosman, November 07, 2025