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cc <br />xv <br />February 1st 2013 two Compressive strength breaks were performed in our laboratory for the previously placed <br />concrete which was placed for the west pad of the temporary concrete crossing on January 22nd 2013. Results are <br />as follows: <br />Specimen: Hwy67 -1 -2, Age 10 days, Load 36895 Ibs, Strength 2940 psi, 70% of design strength. <br />Specimen: Hwy67 -2 -2, Age 10 days, Load 44530 Ibs, Strength 3540 psi, 84% of design strength. <br />It should be noted, these samples are low in compressive strength testing, however testing results are indicating <br />strength in the concrete is increasing as curing takes place. Batch mix and low air content in truck at time of <br />sampling is believed to be the cause. No other issues have occurred with any other concrete testing performed. <br />Note: Concrete blankets were placed over the newly placed concrete for curing. <br />II) Storm Water Management <br />A) Best Management Practices (BMP) are being performed. Inspections continue and have seen no issues. <br />CQA ACTIVITIES: <br />I) Field Activities: Construction activities and observation of clearing and grubbing, fill and compaction, underground <br />workings, HWY 67 progress observation and concrete testing were some of the tasks performed in the field. <br />II) Laboratory Activities: Laboratory testing continued (Particle Size Distribution, Atterberg Limits, Moisture- Density, <br />gradations and material identifications) compressive strength testing were some of the laboratory testing performed <br />during this reporting period. <br />General Project Items <br />Meetings and Discussions: None at this time. <br />Summary of Concerns: None at this time <br />CC& v: Working with CC &V Daty updates and reporting. A weekly Project Status meeting was held at 11:00am on January 29th <br />between CC &V, Ames and Amec. Topics discussed were Safety, Schedule, Project Issues, concerns and planning. See <br />weekly meeting minutes for more detail on topics discussed. <br />Miscellaneous: None <br />Deliveries: None <br />CQA Monitor <br />Submitted by: Thorne Clark <br />Thome M Clark <br />Amec Project Resident <br />Ph: 970.846.9337 <br />Approved By: <br />Page 3 of 6 <br />amec9 <br />Date: 02.02.13 <br />Date: 02 <br />MLE2 WE 02.02.13.doc <br />