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CONCRETE OBSERVATION REPORT MAYES TESTING ENGINEERS <br /> Report Number: M7171835.0002 <br /> Service Date: 11/02/17 20225 Cedar Valley Rd Ste 110 <br /> Report Date: 11/10/17 Lynnwood, WA 98036-6365 <br /> 425-742-9360 <br /> Client Project <br /> R. Miller, Inc. Umbra Cuscinetti <br /> Attn: Accounts Payable 6707 Hardeson Rd. <br /> 18321 98th Ave NE Everett, WA <br /> Bothell, WA 98011 <br /> Project No.: M7171835 <br /> Permit No.: B1708-038 Weather: Indoors/66°F <br /> Samples: (4)4x8" cylinders <br /> Item 1: Reinforcement Inspection <br /> Verified the reinforcing steel for size, grade, quantity, spacing, lap splice and clearance for the slab-on-grade at grid lines E.5 <br /> to G/4.8 to 5.8. Verified the vapor barrier was in place. The reinforcement inspected conforms to approved plans found on <br /> page A-1, detail 3/A-2, and submittal#01. <br /> Item 2: Concrete Placement <br /> Monitored the placement of CalPortland concrete mix#3341 into the slab-on-grade at grid lines E.5 to G/4.8 to 5.8. <br /> Performed concrete tests and cast (4)4x8" cylinders for compressive strength testing (3000 psi required at 28 days). Total <br /> of(54) cubic yards of concrete was placed via line pump. The concrete was consolidated with mechanical vibrator and wire <br /> mesh was pulled up as concrete was placed. <br /> r <br /> moi'` 1 " _Gf! <br /> � �► <br /> Z t <br /> .ae:— - • <br /> .' h,.s. v *` <br /> • <br /> s <br /> am <br /> Figure 1. Slab-on-grade reinforcement. Figure 2. Concrete placement. <br /> To the best of our knowledge, the items inspected today are in conformance with approved plans and specifications. <br /> Services: Special Inspections/Materials Testing <br /> Mayes Testing Engineers Rep.: Ilir Dardania <br /> Reported to: R. Miller Construction <br /> Contractor: R. Miller Construction <br /> Report Distribution: <br /> (1)City of Everett,Dave Foster (1)Mayes Testing Engineers,Inc,Bob <br /> Gardner /14 <br /> (1)R.Miller,Inc.,Jim Rodgers (1)R.Miller,Inc.,Rosario Koenig Reviewed By: <br /> . ..tom <br /> (1)R.Miller,Inc.,Tyler Hale — Robert Gardner <br /> Senior Project Field Manager <br /> The tests were performed in general accordance with applicable ASTM,AASHTO,or DOT test methods. This report is exclusively for the use of the client <br /> indicated above and shall not be reproduced except in full without the written consent of our company. Test results transmitted herein are only applicable to . <br /> the actual samples tested at the location(s)referenced and are not necessarily indicative of the properties of other apparently similar or identical materials. <br /> CT0001,10-16-13,Rev.10 Page 1 of 1 <br />