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Report Main Office Branch Office P.O. Box 23814 4060 Hudson Ave., NE Tigard, Oregon 97281 Salem, OR 97301 Carlson Testing, Inc. Phone (503) 684 -3460 Phone (503) 589 -1252 �� FAX (503) 684-0954 FAX (503) 589 -1309 SIT 1 December 31, 1998 98- 2869.CTI Permit No. 98 -0012 FIELD INSPECTION REPORT DATES COVERED: December 31, 1998 PROJECT: Children's Village Day Care ADDRESS: 10400 SW Park Avenue, Tigard, OR INSPECTOR: R. Andree 12- 31 -98: CTI representative was onsite to perform an epoxy inspection on 5/8" diameter threaded rods embedded 8" into the existing concrete foundation. Holes were cleaned with a vacuum. Epoxy was not put into holes as contractor had difficulty mixing epoxy and chose not to continue. Representative used an R -Meter #00966 to confirm that rebar was placed in forms. Checked two locations along south wall #1 at 40' from east end of wall and #2 at center of wall. R -Meter readings indicated verticals are on 18" center and horizontals are at 9" on center. Performed a rebound hammer test (see attached) on retaining wall that was 3' 10" high and 8" thick. Concrete was a 3000 psi mix with 3/4" aggregate. Areas were formed with plywood panels and snap ties. Wall is exposed to weather on one side and back filled on the other. Used a Schmidt Hammer #1643 on 0° position or perpendicular to wall. Air temperature was 50 °F. #1 west retaining wall 13' from north end average number was 32, psi 3310, #2 south wall 9' from southwest corner 3' up from footing, average number was 33, psi 3510. Test was done in accordance, with ASTM C 805 -97. Our reports pertain to the material tested /inspected only. Information contained herein is not to be reproduced, except in full, without prior authorization from this office. If there are any further questions regarding this matter, please do not hesitate to contact this office. Respectfully submitted, RLSON TESTING, C. 6- PRESIDENT Douglas W. Leach • President :.: •• ••• ••• RA/vnd •• • • ••• Attachment. • • . • • . . . • • . • • • - • , • • • • • •• - cc:. John Klurp • • • .. • • • • • • • • City of Tigdrd Blaildingbept. • • Heintz Construction •• •• •• •• • • • • •• • ••• •• •• •• •• • •• • •• ••• •••••• • •• • • • • • • • • • • • • • • r. % REBOUND HAMMER PER ASTM C805 J READINGS "" RANGE LOCATIONS 1 2 3 4 5 6 7 8 9 1 Xi ± 6 X PSI rri .,v a Ge_ )3' 3 Z 3 Z 30 30 3 Z 3Z 32 34- 32 3 z 32. 26 -SS 3L 331 y n4�'N1� Z uP,2/ 776.F. ▪ • • • • • •• • • I 5. •x.74' G ittaa4 - • 9 ,c/e-iy 3z- 32- 34 3 ¢ 3L 34- 34- 34- 32. 32. 33 27 - 39 33 3Sl0 ••••.31w. •e 3 • ' • •••• • • • •••• • - •• •• • • • •••• • •• •••• " •' • • • • •••• - • . • • • • •• _ • • • • • •• •••••.• • •••• • • • • • • •• • • • • •