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OTTO ROSENAU & ASSOCIATES, INC. <br />Geotechnical Engineering, Construction Inspection & Materials Testing <br />CONCRETE REPORT <br />Job Number: 16-0175 Report Number: RC404589 Permit Number: various <br />Project: Riverfront Simpson Client: Polygon Northwest <br />Address: 4312 30th Drive SE, Everett Address: 11624 SE 5th Street, Bellevue <br />Inspector(s): EssawTesema Date: 01/21/2020 <br />Description/Location: Inspected reinforcing steel and concrete placement for continuous footings at lots #353, #354 and #355. The <br />reinforcing steel was inspected for type, grade, size, spacing, lap splice, dowels, count and clearances. <br />The inspected work was found to be done as per the approved project documents. <br />Lot #353 - address: 4707 31 st Avenue SE - permit#: C1910-001 <br />Lot #354 - address: 4709 31 st Avenue SE - permit#: C1910-002 <br />Lot #355 - address: 3010 47th Street SE - permit#: C1910-012 <br />Rebar Verified: Yes 1/21/2020 Essaw Tesema (Grade 60) Mfg: Cascade <br />Placement: Data <br />Design 0 <br />Actual:: El <br />Batch.WeightsjCubia Yard _ <br />Supplier: Miles <br />Cement (Ibs/type): <br />410# <br />Type: I/II <br />Mix Number: 18350FP <br />Fine Agg. (Ibs): <br />1570# <br />Slump Spec: 4" t1" <br />Coarse Agg. (Ibs/size): <br />1650# #57 <br />Slag (Ibs): <br />W/C Ratio Spec: 0.50 <br />Coarse Agg. (Ibs/size): <br />200# #8 <br />Air Spec: n/a <br />Coarse Agg. (lbs/size): <br />Total Yards: 25 <br />Fly Ash (Ibs): <br />60# <br />Placed Via: Pump <br />Water (Ibs or gal): <br />30gal <br />Consolidated: Yes <br />Admixtures (specify): <br />Required Strength: 3000 psi'@ 28 days <br />Sampling and Testing Data : Time <br />Cubic -' Water Slump Air "/o" <br />.Conc.Temp <br />Ambient. Truck Ticket <br />:ASTM C.172, C 31 `• Made <br />Yards Added C 143 <br />C 231 <br />C1064 <br />Temp No. No. <br />Cast Samples: 1-4 2:45 pm <br />10.75 20 gal. 4.5" <br />n/a <br />52°F <br />45°F C137 235373 <br />Weather: Rainy Slump Range: 4"-V' Air % Range: n/a <br />Date Samples Picked Up: 1/22/2020 Initial Curing Method: ASTM C31, Exclude C31-12.1.5 Initial Curing Temp: ASTM c31, Exclude C31-10.1.2 <br />Comments. <br />REINFORCING/PLACEMENT: Conforms: © Does Not Conform: ❑ <br />Specimen Test Field Age <br />Number Date Cure (Days) <br />1 01/28/2020 7 <br />2 02/18/2020 <br />3 02/18/2020 <br />4 02/18/2020 <br />. = Discarded <br />Tested in general accordance to: <br />28 <br />28 <br />28 <br />COMPRESSIVE TEST RESULTS <br />Size <br />Area <br />Weight <br />Max Load <br />Strength <br />(in.) <br />(Sq.ln.) <br />(Lbs.) <br />(Lbs.) <br />(psi) <br />4 x 8 <br />12.5 <br />8.7 <br />42;090 <br />.................... <br />3370 <br />— <br />--....... -- - <br />4 x 8 <br />-- <br />_ 12.5 <br />8.6 <br />—_. <br />60,420 <br />4830 <br />4 x 8 <br />12.5 <br />8.6 <br />_ 60,290 <br />4820 <br />4 x 8 <br />12.5 <br />8.6 <br />58,670 <br />4690 <br />ASTMC39 © ASTMC617 ❑ ASTMC1231 ❑ <br />Fracture Type <br />(other than cone) <br />5 <br />3 <br />Copies to: <br />❑ Client ❑ Engineer W Batch Plant <br />❑ Owner W Contractor ❑ Others Technical Responsibility: �� <br />❑ Architect ❑ Building Dept oerHa�ject Manager <br />This report applies only to the items tested or reported and is the exclusive property of Otto Rosenau & Associates, Inc. Reproduction of this <br />report except in full, without written permission from our firm is strictly prohibited. <br />6747 M.L. King Way S., Seattle, Washington 98118 - Phone (206) 725-4600 or 1-888-OTTO-4-US - Fax (206) 723-2221 <br />Form No.: ADMIN-62-04 (Rev 09/06) M� Page 1 of 1 <br />