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HomeMy WebLinkAboutEarthwork Compaction Testing Report 08.18.2015�tech HEPWORTH-PAWLAIC GEOTECHNICAL 5020 County Road 154 Glenwood Springs, Colorado 81601 Phone: 970-945-7986 Fax: 970-945-8454 )D4eoehDaeolech.cam Earthwork Compaction Testing Report .client: Silich Construction Inc. Job No.: 115 066F Day: Tuesday Attn: Hayden Horsford Date: 8118115 303 AABC, Suite J Page: 1 of 1 Aspen, Colorado 81611 Proposed Residence, Lot 172, Ironbridge Development, 21 Bent Grass, Garfield County, Colorado Project: Weather. Clear, calm, dry Temperature: 65° at 9:30 am Earthwork Contractor: Logan, Inc. Equipment Used: Mini -excavator, dump truck Description of Earthwork Tested: Sample(s) Obtained: Verbal Communication: Building area had been excavated about 1 to 3 feet to design slab subgrade and underground water and sewer lines had been installed and backfilled. Grade beam trench excavation was In progress at the time of our site visit. We performed four nuclear gauge moisture -density tests at slab subgrade within the building area. Test results were judged to Indicate acceptable compaction at moisture contents well below optimum on previously placed till. One bulk composite sample was obtained from test locations and submitted to our lab for standard Proctor and classification testing. Lab testing results are attached. Logan crew was informed that we judged the test results to indicate acceptable compaction. Placement and Compaction Procedure: Not observed by HP Geotech. ift Thickness: Compactor(s) Used: Max. Rock Size: Moisture Conditioning: Number of Passes: Nuclear Gauge Moisture!Density Test Results Test No. Location Building interior under slab subgrade Depth or Elev. Field Dry Density (pcf) Field Moisture Content Field Comp. (%) 1 6' S, 4' W of building E corner slab subgrade 126.2 4.6 103 Min. Comp. Req. (%) 98 Proctor Lab No. 222-15 2 15' N of the S building corner slab subgrade 125.6 5.1 102 98 222-15 3 Center of building slab subgrade 124.3 5.0 101 98 222-15 4 10' S of N building corner slab subgrade 124.5 4.9 101 98 222-15 Proctor Sample Reference: Lab No. 7Nl 5 rscrvn rnzacNTS OPINIONS AS A RESULT Method Description Max. Dry Dens. pcf Opt. Moist. (%) 222-15 ASTM D 698 ..... Gravelly Silt with Sand 123.0 10.3 LIR 085ERVATIDNSQF FiL! PLACEMENT WE NAVE RELU O ON THE CONTRACTOR To CONTINUE APPLYING THE RECOMMENCED COMPACTIVE EFFORT Atm MOISTURE TO FILL DURING THE TIMES WHEN OUR OBSERVER I5 NOT OBSERVING OPERATIONS THE NUCLEAR DENSOMETER METHOD OF TESTING WAS USED IN SUBSTANTIAL ACCORDANCE WITH ASTM 0 693e Distribution: Aspen Signature Homes of Ironbridge, LLC - Llwyd Ecclestone (lecclestonefiWlpbihil.net) Silich Construction -- Hayden Horsford (hhorsfordllsilichconstructiQn.cola) '1ch Construction —John Silich (lohn@ltllchconstruction.corn) soh Construction —Jodi Thimsen liodiasiiichconstruction.cam) Thomas J. Westhoff, CET Steven L. Pawlak, P.E. Field Technician Reviewed By Laboratory Proctor Compaction Test Report 133N, En 128 , Ellillabihh.b. 1111M . L 123 1 ,- Q EEEiiirrrIII/JIMMIE I MITI milli c El IE. o 118 MIL. 113 i I °-- ZAV for Sp,G.. ,--, 253 108 7.5 9 10.5 12 13.5 Water content, % --0— - Rock Corrected — - Uncorrected Test specification ASTM D 698-00a Method B Standard ASTM 0 4718-87 Oversize Corr. Applied to Each Test Point 15 16.5 Elev! Depth Classification Nat. Moist. Spa. LL PI % > 318 in. e%. No.200 USCS AASHTO ML A-4(0) 21 3 12 62 ROCK CORRECTED TEST RESULTS UNCORRECTED MATERIAL DESCRIPTION Maximum dry density = 123.0 pcf Optimum moisture = 10.3 % 119.6 pcf 11.6 % Gravelly Silt with Sand Project No. I 45066 Client: Silich Construction Inc Project: Lot 172, lronbridge Development, 21 Bern Grass, Garfield County, Colorado o Location: Slab Subgrade Sample Number. 222-15 Remarks: Sec Figure IA for classification results Figure I Hepworth-Pawlak Geotechnical, Inc. Glenwood Springs, Colorado Tested By: KO Checked By: SLP PERCENT FINER Particle Size Distribution Report .& 5 it ,S.a g - �o a o 'o n\ \ ri a a rt R o o e, Q O a a u a — a 00 90 PASS? (X=NO) 3 I I _ 1 L_ iI l 1__1�' 1 el I ji 1 94 I 88 w 1 1 1 1 1 I I I 1 I 118 79 #16 77 80 #30 74 III #50 71 11l! l I #100 68 ff; #200 1 1 I I 1111 I 7� lIIO!1 iI! 1 1 I r l r 1 r 1 50 IIIOII1 1 1 1 1 1 I 1 r 1 ! r 50 111111111 I I 1 I IR I I 1 I 1 I I I I ! !� 1 40 I I ! ! I I I I 1 I 1 1 i I 1 1 1 1 1 I i 30 11i11 I 1 I 1 I 1 I I 1 1 I 1 1 I 1i 1 1 I r 1 1 I 1 , 1 1 1 1 I 1 I 11 1 1 11 1 1 z0 100 II 1 I I I 1 1 1 1 1 1' 1 p 1 1 1 1 l 1 1 1 1 1 f 1 1 1 1 1 1 1 111 1 1 1 100 10 1 f3 1 A At n mall GRAIN SIZE - mm. % +3" Graval 0 Comae 6 Fine 13 % Sand Coarse f Medium 1 Fine 1 Fines Silt 2 i 6 1 11 6? 1 Clay SIEVE SIZE PERCENT FINER SPEC: PERCENT PASS? (X=NO) 3 100 1.5 98 .75 94 .375 88 114 81 118 79 #16 77 #30 74 #50 71 #100 68 #200 63 (no spcciAeolian provided) Location: Slab Subgradc Sample Number: 222-15 Material Description Gravelly Silt trith Sand PL= 18 D9o= 12.0007 050= D10= Atterberc7 Limits LL= 21 Coefficients D85= 7.0691 D30= Cu= Classification USCS= ML AASHTO= A-4(0) Remarks See Figure I for standard Proctor compaction results. P1= 3 D50= 015= Dc= Date: 8/18/2015 Hepworth-Pawlak Geotechnical, Inc. Glenwood Springs, Colorado Client: Silich Construction Inc. Project: Lot 172, Ironbridge Development, 21 Berl Grass, Garfield County, Colorado Protect No: 105066F Figure 1A Tested By: KO Checked By: SLP