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OTTO ROSENAU & ASSOCIATES, INC. Geotechnical Engineering,Construction Inspection&Materials Testing CONCRETE REPORT Job Number: 16-0175 Report Number: RC354461 Permit Number: Project: Riverfront Simpson Client: Polygon Northwest Address: 4312 30th Drive SE,Everett Address: 11624 SE 5th Street,Bellevue Inspector(s): Andy Duong Date: 10/6/2017 Description/Location: Footings Bldg.208 permit#C1707-001,Bidg.209 permit#C1707-002,Bldg.252 permit#C1707-029, Bldg.223 permit#1706-015,Bldg.230 permit#C1706-019,and Bldg.245 permit#C1706-020 Resteel Verified: Yes 10/6/2017 Andy Duong(Grade 60) Mfg: Nucor PlacementData Design Actual Q Batch Weights/Cubic Xatcl Supplier: Miles Cement(lbs/type): 410# Type: I/H Mix Number: 18350FP Fine Agg.(lbs): 1520# Slump Spec: 4"±l" Coarse Agg.(lbs/size): 1560# 7/8" Slag(lbs): W/C Ratio Spec: 0.532 Coarse Agg.(lbs/size): 300# Pea Gravel Air Spec: See Note Coarse Agg.(lbs/size): Total Yards: 70 Fly Ash(lbs): 50# Placed Via: Pump Water(lbs or gal): 30 gal. Consolidated: Yes Admixtures(specify): Required Strength: 3000 psi at 28 days. Sampling and Testing Data Time Cubic Water Slump Air% Conc Temp Ambient Truck Ticket ASTM`C-172,C 31 Made Maids added ' C 143 C231 7,.':..C„1.004- ;Temp No NO, Cast Samples: 1-4 12:45 pm 10,00 0 gal. 4.25" N/A 69°F 60°F C183 197391 Weather: Partly Cloudy Slump Range: — Air%Range: -- Date Samples Picked Up: 10/9/2017 Initial Curing Method: AsiaC31,Exclude C31-1Z1.3 Initial Curing Temp: ASTM c31.Exclude C31.10.1.2 Comments On approved plan calls for 5+-1%air entrainment in the concrete but the CT engineer approved mix without air.A copy of engineer approval attached.Did not stay for entire placement. REINFORCING/PLACEMENT: Conforms:El Does Not Conform:❑ COMPRESSIVE TEST RESULTS Specimen Test Field Age Size Area Weight Max Load Strength Fracture Type Number Date Cure (Days) (in.) (Sq.ln.) (Lbs.) (Lbs.) (psi) (other than cone) 1 10/13/17 7 4 x 8 12.56 8.7 47,910 3810 5 2 11/3/17 28 4 x 8 12.62 8.8 61,860 4900 5 3 11/3/17 28 4 x 8 12.62 8.8 62,760 4970 5 4 11/3/17 28 4 x 8 12.62 8.8 67,610 5360 3 *=Discarded ---. Tested in general accordance to: ASTMC39 J ASTMC617❑ ASTMC1231 ❑ Copies to: ❑Client ❑ Engineer ❑Building Dept ❑Owner I Contractor © Batch Plant Technical Responsibility: AA / ❑Architect ❑Others W jr ens: , roject Manager This report applies only to the items tested or reported and is the exclusive property of Otto Rosenau&Associates,Inc. Reproduction of this report except in full,without written permission from our firm is strictly prohibited. 6747 M.L.King Way S.,Seattle,Washington 98118—Phone(206)725-4600 or 1-888-OTTO-4-US-Fax(206)723-2221 Form No.:ADMIN-62-04(Rev 09/06)