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a COLORADO DEPARTMENT OF HIGHWAYS <br />MATERIALS DIVISION <br />LAB. FORM NO. 38B <br />REV. 10-52 <br /> <br />Project CS 42-0002-28 <br />Location_. r4ybe11 East & West <br />Field Sample No. 1647 <br />Date 1/11/60 <br />Pit (Owner) U..S• Land & State of Colo. <br />SUBBASE AND/OR SELECT BORROW <br />Lots 14 15,16,17,18, 31 - <br />.?a?Section <br />24 - Distance from Pit to Sta 1887+50 over <br /> <br />17001 <br />a <br />Preliminary- _.X <br />Township 7H route of haul is <br />^ 3 <br />) <br />Roadway.---------- Range R95N % Oversize (9? (4 <br />Stockpile---_--- <br />60, County_ Moffat 0/. Oversize (7") <br />Max. Size in pit <br /> Specs. <br />6 <br />1-A <br />1 8 9 10 <br />2 A 2-13 2-C <br />_ <br />_ <br />Identification ... eat -••- <br />Clayey <br />Sandy Sandy <br />Sandy Gravelly Sandy <br />- Gravel Gravel <br />6? <br />? 1? <br />6?' 5# Clay Sand Gravel <br />.1 -3 ' 3'-41 4•-llf <br />' <br />- <br />0 -1 <br />Depth ................................ 11p 14BD ?t0 15x3. NO <br />Crushed at Lab ` <br />Passing 7" .......................... - <br />1 <br />0 <br />100 <br />- <br />- <br />- <br />__- <br />3 5" .....................-.... <br />„ " ...................... 97 98 - <br />................ __100 --$5 - 9----5 <br />'71/.. <br /> <br />100 -?_ <br />96? <br />.......... <br />- 2 99 87* 90* 99 <br />9 <br />11/2.' .......................... 95 g? _ -- - 96 AM_ <br />99 76 <br />......................... 69 67 - 64 <br />.. <br />1/ --?-G --?-- <br />9A <br />2 <br />. <br />4 <br />1 --••• ..............••-•• 62..- 57 <br />/2 ............................ 95 -- <br />- <br />-- -- <br />3 91 <br /> _2 <br /> <br />;?4.......................... ----- 49- <br />10---••• .................... 34 <br />_ -86 73 l <br />31 <br />76 <br /> <br /> <br />'30 .. <br />.................•----•. 2b ?1 14 <br />__ <br />10 <br />73 _ 16 <br />19 4 4 <br />100- 2 <br />2Ar 70 2 <br />_ <br />64 2* <br />17 <br />\. X200 ....................... ... <br />Abrasion (% wear).......... - <br /> <br />W W <br />3 &W NV <br /> <br />35.7 <br />--? <br />Liquid Limit .................... <br />Plastic Limit .................... <br />I& 22, 3 <br />NP <br />4* <br />I? <br />_ <br />Plastic Index 11.6 1_P . <br />Stabilometer Data: <br />78 <br />„ <br />„R <br />- <br />Value .....................• <br />Density, 16s./cu. ft....... <br />0 <br />7 <br />• <br />° <br />/o Moisture .................. 57 71 <br />18 84 71 <br />Sand Equivalent .............. <br />12.6009000 EWL "Ml <br />'PI't7and a art PMS wearing <br />course, the indicated <br />Based on "R" Value-Assuming <br />thickness of cover including the wearing course is_ <br />Std. Structure Backfill <br />f <br />ti <br />i <br />* . --.--- - <br />and/or . Subbase Mate spClficationsS <br />tructure BaCkfilI <br />kf <br />Lure <br />rom- <br />on <br />a <br />Indicates dev <br />Rand & Gravel is acceptable under the-Std. <br />crushed <br />i _-.. _ __ specs. for <br />c <br />to meet gradation requirements. Plasti 03 <br />s <br />and Class 1 Subbase when oversize <br />Should be wasted. S & G may require tight crushing to produce sufficient fines. <br />See combinations on shoots 4 and 5, <br />mccoypBrakey <br />1 <br />*jor <br />Lena re s t (2) --- - - - <br />L .r 3/11/60 sr.,FF MATER f!S ENGINEER