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DR8801-LR 890315 (2)HAYNES, HOLLON & ASSOCIATES, INCORPORATED Testing. Inspection & Materials Engineers 7800 8rookhollow Road · P. O. Box 35481 Callas, Texas 75235 · (:~14) 831-4372 George W. Hollon, P.E. John H. Haynes, March 15, 1989 February 9, ]989 Mr.-Steve Morton City of Coppell P. O. Box 478 Coppell, Texas 75019 Re: Drainage Improvements @ Bethel Road Coppell, ~exas Concrete Beam Flexural Strength Tests Haynes, Hollon Job No. 18171 Report No. 9 Deaz Mr. Morton: Submitted herewith are the results of flexural strength tests made to date on the beam specimens cast at the project referenced above on January ]2 and 3], ]989. If you should have any questions, please call. Respectfully submitted, HAYNES, HOLLON & ASSOCIATES, INC. George W. Hollon, P.E. enc. LJC:p cc: Buckelew Construction DeShazo, Starek & Tang - Clyde Sifford Concrete, Soil and Steel -- Construction I~uality Control March 15, 1989 Drainage Improvements @ Bethel Road Coppell, Texas CONCRETE BEAM FLEXURAL STRENGTH TESTS CENTER POINT LOADING (ASTM C293) Beam Date Date Age No. Cast Tested (Days) 11201 1/12/89 ]/16/89 4 11202 1/12/89 ' 1./19/89 7 11203 i/12/89 2/9/89 28 11204 1/12/89 2/9/89 28 13101 ]/31/89 2/2/89 2 ]3]02 1/31/89 2/4/89 4 13103 ]/31/89 2/7/89 7 13]04 1/31/89 2/14/89 14 13105 1/3]/89 2/28/89 28 February 9, 1989 Haynes, Hollon Job No. ]8171 Slump Air Concrete Ambient Location (in.) (%) Temp. °F. Temp. Sta. 4+75, Culvert 4 1/2 4.2 52 40 Bottom Slab " " " " 3 3/4 4.2 Sra. 4+25, Culvert Top Slab 68 76 II Flex 540 710 775 595 665 70~ 690