HomeMy WebLinkAboutCCOR 07-08-2026 792-171 to 792-173Concrete Construction Observation Report
The S.W.COLE field representative is on-site at the request of our client to provide construction materials testing and to observe and document construction activities. The Contractor has soleresponsibility for schedule, site safety, methods, completeness and quality control.
58 Norfolk Ave, Easton, MA 02375 • Tel 508 822 6934 • www.swcole.com
Project Name:Town of Yarmouth Water Resource Recovery Facility Project NO.:25-0468Location:Yarmouth MA Date:7/8/2026
Client:Wright-Pierce Client Rep:Rayssa FonteWeather:Rain 67 - 69°F S.W.COLE Rep:Alexander
Charnitsky
General Contractor:Nickerson Time Onsite:06:30 - 14:30Placement Type: Footing Wall Slab Other: Column
Placement Location:Walls on SBR Slabs 20 & 21, SE Columns in SBR 2, Process Footing Support Wall
Concrete Placement Observations Observed Comments
Required mix used Yes 4500psi, 1 1/2", 3/4, Sika 75
Concrete properly conveyed to all areas of placement Yes Pump Truck
Internal vibration / consolidation of concrete Yes Handheld vibrator
Even layering around openings and embedments Yes Concrete evenly layered and vibrated around
openings and embedments
Post placement observations (finishing, curing, etc.)Yes Concrete Manually Finished
Field Testing of Concrete performed:Yes
*CYLINDER SET NO:792-171 to 792-173 *Refer to associated concrete test report
Notes:
As requested by Rayssa (CDM Smith), S.W. COLE rep was onsite to perform concrete sampling, and concretetesting at the locations referenced above.
S.W. COLE Construction Services representative Alex Charnitsky arrived onsite at approximately 6:30 AM.
Concrete placement was observed during the time of sampling and testing.
Concrete Delivery of Load 1 arrived onsite with approximately 11 cubic yards of 4,500‑psi concrete with1‑1/2‑inch aggregate. Sika 75 admixture was added prior to placement. The concrete was placed via pump truck.
Two sets of field tests were performed on sampled concrete with the following results:
Truck 52 – Load 1Slump: 8 inches
Air Content: 4.3 percentConcrete Temperature: 80°F
Truck 81 – Load 10Slump: 6 inches
Air Content: 3 percentConcrete Temperature: 80°F
Two sets of 6x12 compression test cylinders were cast for laboratory testing at 7, 14, and 28 days (2), along withone hold cylinder.
Following completion of the initial placement, the pump truck relocated and utilized a 4,500‑psi concrete mixwith 3/4‑inch aggregate. Sika 75 admixture had been added prior to arrival.
Truck 77 – Load 1Slump: 7 inches
Air Content: 3.6 percentConcrete Temperature: 79°F
One set of 4x8 compression test cylinders were cast for laboratory testing at 7, 14, and 28 days (2), along withone hold cylinder.
Laboratory compressive strength test results will be reported separately upon completion of testing.
Concrete Construction Observation Report
The S.W.COLE field representative is on-site at the request of our client to provide construction materials testing and to observe and document construction activities. The Contractor has soleresponsibility for schedule, site safety, methods, completeness and quality control.
58 Norfolk Ave, Easton, MA 02375 • Tel 508 822 6934 • www.swcole.com
Test results and observations were verbally reported to the onsite client representative while onsite.
The S.W.COLE rep departed the site at approximately 2:30 PM after completing the requested services.
Attachments: 2 Photos Reviewed by:7/9/2026 Kaylie O'Su iv Kaylie O'Sullivan
Concrete Construction Observation Report
The S.W.COLE field representative is on-site at the request of our client to provide construction materials testing and to observe and document construction activities. The Contractor has soleresponsibility for schedule, site safety, methods, completeness and quality control.
58 Norfolk Ave, Easton, MA 02375 • Tel 508 822 6934 • www.swcole.com