1313 75TH ST SW 2023-12-11 - Laserfiche WebLink

OTTO ROSENAU & ASSOCIATES, INC. Geotechnical Engineering, Construction Inspection & Materials Testing CONCRETE REPORT Job Number: 22-0835b Report Number: RC452781 Permit Number: B2208-109 Project: Middle Earth Holdings Foundation- Phase 2 Client: Helion Energy, Inc. Address: 1313 75th St SW, Everett Date: 02/22/2023 Inspector(s): John Fraser COMPRESSIVE TEST RESULTS Fracture Type Specimen Test Field Age Size Daily Average Weight Max Load Strength (other Number Date Cure (Days) (in.) Area (Sq.In.) Diam. (In.) (Lbs.) (Lbs.) (psi) than cone) 1 02/24/2023 2 4 x 8 12.57 4.00 8.5 14,700 1170 3 2 02/27/2023 5 4 x 8 12.57 4.00 8.3 41,320 3290 5 3 03/01/2023 7 4 x 8 12.57 4.00 8.4 40,650 3230 5 4 03/09/2023 15 4 x 8 12.62 4.01 8.7 62,630 4960 5 6 03/22/2023 28 4 x 8 12.57 4.00 8.6 80,690 6420 5 7 03/22/2023 28 4 x 8 12.57 4.00 8.4 80,880 6430 5 28-day Average PSI: 6420 8 03/01/2023 7 4 x 8 12.57 4.00 8.4 45,740 3640 5 9 03/22/2023 28 4 x 8 12.57 4.00 8.4 84,720 6740 5 10 03/22/2023 28 4 x 8 12.57 4.00 8.4 87,620 6970 5 11 03/22/2023 28 4 x 8 12.57 4.00 8.5 86,510 6880 5 28-day Average PSI: 6860 12 03/01/2023 7 4 x 8 12.57 4.00 8.6 35,890 2860 5 13 03/22/2023 28 4 x 8 12.57 4.00 8.7 68,160 5420 5 14 03/22/2023 28 4 x 8 12.57 4.00 8.7 68,930 5480 5 15 03/22/2023 28 4 x 8 12.57 4.00 8.7 71,230 5670 5 28-day Average PSI: 5520 16 03/01/2023 7 4 x 8 12.57 4.00 8.4 33,500 2670 5 17 03/22/2023 28 4 x 8 12.57 4.00 8.4 71,410 5680 5 18 03/22/2023 28 4 x 8 12.57 4.00 8.5 72,220 5750 5 19 03/22/2023 28 4 x 8 12.57 4.00 8.5 72,140 5740 5 28-day Average PSI: 5720 20 03/01/2023 7 4 x 8 12.57 4.00 8.3 30,060 2390 5 21 03/22/2023 28 4 x 8 12.57 4.00 8.4 67,630 5380 5 22 03/22/2023 28 4 x 8 12.57 4.00 8.4 66,290 5270 5 23 03/22/2023 28 4 x 8 12.57 4.00 8.4 70,120 5580 5 28-day Average PSI: 5410 24 03/01/2023 7 4 x 8 12.57 4.00 8.3 45,230 3600 5 25 03/22/2023 28 4 x 8 12.57 4.00 8.5 90,320 7190 5 26 03/22/2023 28 4 x 8 12.57 4.00 8.4 88,350 7030 5 27 03/22/2023 28 4 x 8 12.57 4.00 8.4 83,130 6610 5 28-day Average PSI: 6940 28 03/01/2023 7 4 x 8 12.57 4.00 8.3 40,970 3260 3 29 03/22/2023 28 4 x 8 12.57 4.00 8.4 81,130 6450 5 30 03/22/2023 28 4 x 8 12.57 4.00 8.4 78,200 6220 5 31 03/22/2023 28 4 x 8 12.57 4.00 8.4 79,140 6300 5 =Discarded 28-day Average PSI: 6320 Tested in general accordance to: ASTMC39 ❑-/ ASTMC617❑ ASTMC1231 ❑ 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-Fax(206)723-2221 Form No.: ADMIN-62c-04(Rev 09/06) Page 2 of 5