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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 RC405402 Permit Number: various <br />Project: Riverfront Simpson Client: Polygon Northwest <br />Address: 4312 30th Drive SE, Everett Address: 13810 SE Eastgate Way, Suite 410, Bellevue <br />Inspector(s): Brian Robertson Date: 02/12/2020 <br />Description/Location: Inspected reinforcing steel and concrete placement for foundation walls at the following lots: <br />- Lot 357 - address: 3006 47th Street SE - permit#: C1910-005 <br />- Lot 358 - address: 3004 47th Street SE - permit#. C1910-003 <br />Inspected reinforcing steel and concrete placement for footings at the following lots: <br />- Lot 359 - address: 2924 47th Street SE - permit#: C1 910-004 <br />- Lot 360 - address: 2922 47th Street SE - permit#: C1 910-006 <br />- Lot 361 - address: 2920 47th Street SE - perinift. CI9I0-013 <br />Electrical UFER ground rods and holdowns are in place. <br />The inspected work was found to be done as per the approved project documents. <br />Rebar Verified: Yes 211212020 Brian Robertson (Grade 60) Mfg: Nucor <br />Placement:Data <br />Supplier. <br />Miles <br />Mix Number: <br />18350FP <br />Slump Spec: <br />41±11. <br />WIC Ratio Spec: <br />0.532 <br />Air Spec: <br />n/a <br />Total Yards: <br />55.6 <br />Placed Via: <br />Boom Pump <br />Consolidated: <br />Yes <br />Cement (Ibs/type): <br />41101t Type: I/H <br />Fine Agg. (lbs): <br />1570# <br />Coarse Agg. (lbs/size): <br />200# 3/8" Slag (lbs): <br />Coarse Agg. (lbs/size): <br />1650# 7/8" <br />Coarse Agg. (lbs/size): <br />Fly Ash (lbs): <br />60# <br />Water (Ibs or gal): <br />30gal <br />Admixtures (specify): <br />Required Strength: 3000 psi @ 28 days <br />0-6 Cubic" sitbr. <br />77 7T �i <br />Trucki-T, <br />-1c <br />-Sampling and :Testing Data UMp- Tvirrip, m lent,—, <br />3- <br />-141 23 �,-C`1064 Tetrip No: No <br />r <br />M <br />.: <br />Cast Samples: 1-4 1:20 pin 11.00 5 gal. 4,661 n/a 61 OF 44°F 1155 236438 <br />Weather: Cloudy Slump Range: 4�'+/-1" Air % Range: n/a <br />Date Samples Picked Up: 211312020 Initial Curing Method: As-rm C31, Exclude G31-12.1.5 Initial Curing Temp: ASTM c31, Exclude C31-10.1.2 <br />Comments....:.... 7­J., <br />F, <br />REINFORCINGIPLACEMENT: <br />Conforms: � <br />Does Not Conform: [:] <br />COMPRESSIVE TEST RESULTS <br />Specimen <br />Test Field <br />Age <br />Size Area Weight <br />Max Load <br />Strength <br />Fracture Type <br />Number <br />Date Cure <br />(Days) <br />(in.) (Sq.In.) (Lbs.) <br />(Lbs.) <br />(psi) <br />(other than cone) <br />1 <br />02119/2020 <br />7 <br />4 x 8 12.5 8.7 <br />50,210 <br />4020 <br />5 <br />2 <br />03/11/2020 <br />28 <br />4 x 8 12.5 8.6 <br />72,450 <br />5800 <br />5 <br />3 <br />03/1112020 <br />28 <br />4 x 8 12.5 8.6 <br />68,810 <br />5510 <br />5 <br />4 <br />03/1112020 <br />28 <br />4 x 8 12.5 8.7 <br />69,310 <br />5550 <br />3 <br />* = Discarded <br />Tested in general accordance to: ASTMC39 0 ASTMC617 F1 ASTMC1231 F1 <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) Page 1 of 2 <br />