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CONCRETE COMPRESSIVE STRENGTH TEST REPORT <br />Report Number: M7221540.0002 <br />Service Date: 08/05/22 <br />Report Date: 08/15/22 <br />Task: <br />Client <br />Corti Construction, Inc <br />Attn: Ted Spicer <br />4024 148th Ave NE <br />Redmond, WA 98052 <br />Material Information <br />Specified Strength: 5,000 psi @ 28 days <br />Mix ID: 024000P <br />Supplier: Smokey Point <br />Concrete <br />Batch Time: 1228 <br />Plant: 603R <br />Truck No.: 479 <br />Ticket No.: 280744 <br />Field Test Data <br />Test <br />Result Specification <br />Slump (in): <br />6 <br />Air Content (%): <br />5.1 <br />Concrete Temp. (F): <br />78 <br />Ambient Temp. (F): <br />66 <br />Plastic Unit Wt. (pcf): <br />Yield (Cu. Yds.): <br />Laboratory Test Data <br />Set Spec Cyl. Avg Diam. J <br />No. ID Cond. (in) (! <br />1 1 Good 4.00 ] <br />1 2 <br />1 3 <br />1 4 <br />Initial Cure: Inside <br />Comments: Not tested for plastic unit weight. <br />MAYES I Irerracon <br />20225 Cedar Valley Rd Ste 110 <br />Lynnwood, WA 98036-6365 <br />425-742-9360 <br />Project - M7221540 <br />Bezos Academy Everett <br />3201 Smith Ave <br />Everett, WA 98201 <br />Permit No.: B2205-053 <br />Sample Information <br />Sample Date: <br />08/05/22 Sample Time: 1321 <br />Sampled By: <br />Barry Tuttle <br />Weather Conditions: <br />Clear <br />Accumulative Yards: <br />10 Batch Size (cy): 10 <br />Placement Method: <br />Pump <br />Water Added Before (gal): <br />10 <br />Water Added After (gal): <br />0 <br />Sample Location: <br />Grd line 3.8/B <br />Placement Location: <br />Infills, grid lines 3.8-7 from B-F <br />,ea Date <br />Date <br />in) Received <br />Tested <br />.57 08/08/22 <br />08/12/22 <br />08/08/22 <br />09/02/22 <br />08/08/22 <br />09/02/22 <br />08/08/22 <br />09/02/22 <br />Final Cure: Moist <br />Room <br />Samples Made By: Mayes/Terracon <br />Services: Special Inspections / Materials Testing <br />Mayes/Terracon Rep.: Barry Tuttle <br />Reported To: Corti <br />Contractor: Corti <br />Report Distribution: <br />(1) Corti Construction, Inc, Ted Spicer <br />(1) Mayes Testing Engineers, Inc, Donna <br />Pollard <br />(1) City of Everett WA, Permit Services <br />(1) Mayes Testing Engineers, Inc, Todd Wirtz <br />Age at <br />Max <br />Comp <br />Test <br />Load <br />Strength Frac Tested <br />(days) <br />(Ibs) <br />(psi) Type By <br />7 <br />58,520 <br />41660 2 AWD <br />28 <br />28 <br />28 <br />Sample <br />Description: 4-inch diameter cylinders <br />Reviewed By: <br />Barry Tuttle <br />Project Field Manager <br />Test Methods: ASTM C 31, ASTM C39, ASTM C138, ASTM C143, ASTM C172, ASTM C231, ASTM C1064, ASTM C1231 <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 indicated above and shall not be <br />reproduced except in full without the written consent of our company. Test results transmitted herein are only applicable to the actual samples tested at the location(s) referenced and <br />are not necessarily indicative of the properties of other apparently similar or identical materials. <br />CRoo01, 3-31-22, Rev.7 Page 1 of 1 <br />