HomeMy WebLinkAboutCCOR 04-21-2026 792-122Concrete 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.
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Project Name:Town of Yarmouth Water Resource Recovery Facility Project NO.:25-0468Location:Yarmouth MA Date:4/21/2026
Client:Wright-Pierce Client Rep:Eric Salo / CDMSmith
Weather:Mostly Clear 40 - 45°F S.W.COLE Rep:Mohammed Rifaz
General Contractor:CDM Smith Time Onsite:06:30 - 11:00Placement Type: Footing Wall Slab Other
Placement Location:Process Building Walls
Concrete Placement Observations Observed Comments
Required mix used Yes “4500PSl strength, 1-1/2in. Aggregates and Sika
control 75, Energy surcharge admixtures”.
Concrete properly conveyed to all areas of placement Yes “Concrete placed evenly along process building
walls with no segregation observed”.
Internal vibration / consolidation of concrete Yes “Proper vibration carried out using mechanical hand
vibrators; concrete well consolidated with no visible
voids”.
Even layering around openings and embedments Yes “Concrete placed uniformly around embedments”.
Field Testing of Concrete performed:Yes
*CYLINDER SET NO:792-122 *Refer to associated concrete test report
Notes:
S.W. Cole Engineering Construction Services Technician Mohammed Rifaz arrived onsite at 06:30 am for "Concrete Field
Testing" for the placement location referenced above.
At the time of arrival, I spoke with Rayssa Fonte provided information about today's job duties.
Concrete was delivered by "Cape Cod Ready Mix" and was a 1-1/2" Aggregate, 4500psi, Concrete Mix with Sika Control 75
and Energy Surcharge. A total of 90.00cubic yards of concrete were poured.
The mix specifications were as follows:
Slump: 7.00in - 10.00in
Air Content: 3.00% - 6.00% (Air entrained mix).
A sample was collected from the 1st load and the standardised testing was performed with the following results:
1. 1st Poured Load (Truck#79)
Slump: 8.5in.
Air Content: 5.8%
Concrete Temperature of 60F°
1 sets of 6 cylinders of size 6x12 was cast from the first load for laboratory compressive strength testing at 7, 14, and (x3) 28
days. One cylinder was made for 'Hold' purposes.
Observations and Results of the Inspection were communicated to Rayssa Fonte.
Attachments: 3 Photos Reviewed by:4/22/2026 Kaylie OSu iv Kaylie OSullivan
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.
, , • Tel • www.swcole.com
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.
, , • Tel • www.swcole.com