HomeMy WebLinkAbout2026-04-21 - Lindbergh High School Field Improvements - 25B121-01 - 7035_Compressive Strength of Concrete_000011-01Specimen
Number
Test
Age Days
Test
Date
Field / Lab
Cure Days
Average Cylinder
Diameter (in)
Cylinder
Area (in²)
Max Load
(lbs)
Strength
(psi)
Fracture
Type
Break
Remark
Capping
Method
11-1 7 04/28/26 1 / 6 4.00 12.57 48,027 3,820 1 U
11-2 28 05/19/26 1 / 27 4.00 12.57 67,396 5,360 2 CP U
11-3 28 05/19/26 1 / 27 4.00 12.57 64,098 5,100 2 CP U
11-4 28 05/19/26 1 / 27 4.00 12.57 65,226 5,190 2 CP U
11-5 28 05/19/26 1 / 27 4.00 12.57 65,753 5,230 1 CP U
Test Age Average Strengths (psi): 7 Day - 3820, 28 Day - 5220
CP: Compressive Strength meets project requirements at design strength age.
Tested By: Paul Fuentes (1,2,3,4,5)
Checked In : 04/22/2026 (1,2,3,4,5)
Capping Methods
U: Unbonded Caps (ASTM C1231)
Set #:11
Specimen Size:4" X 8"
Specimens In Set:5
Truck / Ticket #:1152 / 1294570
Contractor:Neely Construction
Company
Technician:Paul Lomeli
Cast By:Paul Lomeli
Date Cast:04/21/26
Sampled From:Chute
Placement Method:Chute
Sample Details
Batched:
Sampled:09:05 PDT
Cast:09:20 PDT
Truck Empty:
Placement Time:
Placement Location:Building Exterior - Footing
Location Details:Batting cage footings
Sample Location / Notes:Most north batting cage footing.
Batch Log
Strength:4500 (psi)
Air:4.5 - 7.5 (%)
Specifications
Supplier:Miles
Plant:202
Sampling Method:ASTM C172
Mix Design:1250AF
On-Site Admixtures: 32.00 Oz AEA-Air Entraining Admixture
Location
Field Measurements
Plastic Unit Weight:
Air Content:6.0 (ASTM C231)
Load Volume:3.00 (yd³)
Weather:52 Partly Cloudy Slump (in):4 (ASTM C143)
Air Temperature (F):Concrete Temp (F):66 (ASTM C1064)
Lab Test Results
Testing Lab: Burlington, 777 Chrysler Drive, Burlington, WA, 98233
As a mutual protection to clients, the public and ourselves, all reports are submitted as the confidential property of clients, and
authorization for publication of statements, conclusions or extracts from or regarding our reports is reserved pending our written
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Client:
Renton School District No. 403
Renton, WA 98057
300 SW 7th St
Project:
Lindbergh High School Field Improvements
25B121-01 (Bldg Permit: B25002218)
Renton, WA 98059
16426 128th Avenue Southeast
Compressive Strength of Concrete
Test Method: ASTM C 39
Sample: 7035
Sample 7035
Report #: CC-000011-01
Burlington
777 Chrysler Drive
Burlington, WA 98233
Phone: (360) 755-1990
Report Date: 05/19/2026 13:37