HomeMy WebLinkAbout2025-10-13 - Lindbergh High School Field Improvements - 25B121-01 - 5241_Compressive Strength of Concrete_000009Specimen
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
9-1 7 10/20/25 1 / 6 4.00 12.57 47,151 3,750 2 U
9-2 28 11/10/25 1 / 27
9-3 28 11/10/25 1 / 27
9-4 28 11/10/25 1 / 27
9-5 56 H 12/08/25 1 / 55
Test Age Average Strengths (psi): 7 Day - 3750
Tested By: Paul Fuentes (1)
Checked In : 10/14/2025 (1,2,3,4,5)
Capping Methods
U: Unbonded Caps (ASTM C1231)
Set #:9
Specimen Size:4" X 8"
Specimens In Set:5
Truck / Ticket #:1192 / 1248113
Contractor:J. Scott
Technician:Randy Stevenson
Cast By:Randy Stevenson
Date Cast:10/13/25
Sampled From:Chute
Placement Method:Pump
Sample Details
Batched:09:45 PDT
Sampled:10:34 PDT
Cast:10:45 PDT
Truck Empty:10:50 PDT
Placement Time:65 (min)
Placement Location:Paving - Sidewalk
Location Details:Sidewalk on East side of lower baseball field.
Sample Location / Notes:Upper part of sidewalk / landing
Batch Log
Strength:5000 (psi)
Air:3.5 - 6.5 (%)
Slump:4 - 6 (in)
Specifications
Supplier:Miles
Plant:202
Sample Condition:
Mix Design:1250AFG
On-Site Admixtures: None
Location
Field Measurements
Plastic Unit Weight:
Air Content:4.6 (ASTM C231)
Load Volume:11.00 (yd³)
Weather:Sunny Slump (in):6-3/4 (ASTM C143)
Air Temperature (F):50 Concrete Temp (F):66 (ASTM C1064)
Lab Test Results
Testing Lab: Burlington, 777 Chrysler Drive, Burlington, WA, 98233
Attachments
Sample #Name Description
5241 20251013_094606.jpg Top Mix Design
5241 20251013_102614.jpg
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
approval.
Page 1 of 1
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: 5241
Sample 5241
Report #: CC-000009-00
Burlington
777 Chrysler Drive
Burlington, WA 98233
Phone: (360) 755-1990
Report Date: 10/20/2025 11:52
Page 1 of 2
Description: Top Mix Design
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
approval.
Page 1 of 0
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 5241
Report #: CC-000009-00
Burlington
777 Chrysler Drive
Burlington, WA 98233
Phone: (360) 755-1990
Report Date: 10/20/2025 11:52
Page 2 of 2