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D m GRAIN SIZE Munsell Color DESCRIPTION SIEVE GRAIN APPROXIMATE NAME ABBR SIZE SIZE SIZE Boulders >12 in.(304.8 mm.) >12 in.(304.8 mm.) Larger than basketball-sized Red R Yellow Red YR Cobbles 3-12 in.(76.2-304.8 mm.) 3-12 in.(76.2-304.8 mm.) Fist-sized to basketbalps¢etl Yellow Y coarse 3/4-3 in.(19-76.2 mm.) 3/4-3 in.(19-76.2 mm.) Thumb-sized to fist-sized GravelGreen Yellow GY fine #4-3/4 in.(#4-19 mm.) 0.19-0.75 in.(4.8-19 mm.) Pea-sized to thumb-sized Green G coarse #10-#4 0.079-0.19 in.(2-4.9 mm. Rock saft-sized to pea-sized C Blue Green BG ' Sand medium #40-#10 0.017-0.0791 in (0.43-2 mm.) Sugar-sized to rock saft-sizedBlue B fine #200-#40 .0029-0.017 in.(0.07-0.43 mm. Flour-sizetl to sugar-sized Purple Blue PB Fines Passing#200 -0.0029 in.(<0.07 mm.) Flour-sized and smaller Purple P Red Purple RP ' ANGULARITY Black N DESCRIPTION CRITERIA Particles Present Angular Particles have sharp edges and relatively plane Amount Percentage 9 sides with un olished surfaces O O �� J^ trace <5 Subangular artic es are s'in ar to angular escription ut ave rounded edges few 5-10 Subrounded Particles have nearly plane sides but have O O Q little 15-25 well-rounded comers and edges 4�4JJ some 30-45 ' Rounded Particles have smoothly curved sides and no edges Rounded Subrounded Suban ular An ular and 50 PLASTICITY MOISTURE CONTENT mostly 50-100 DESCRIPTION LL FIELD TEST DESCRIPTION FIELD TEST ' Nan-plastic NP A 1/8-in.(3 mm.)thread cannot be rolled at Dry Absence of moisturedusty,dry to the touch anywatercontent. The thread can barely be rolled and the lump Moist Damp but no visible water Low(L) <30 orthread cannot be formed when drier than the Wet Visible free water,usually soil is below water table plastic ea The thread is easy to roll and not much time REACTION WITH HYDROCHLORIC ACID is required to reach the plastic limit. Medium(M) 30-50 The thread cannot be rerolled after reaching the plastic limit. The lump or thread crumbles DESCRIPTION FIELD TEST when drier than the plastic limit None No visible reaction ' It takes considerable time rolling and kneading to reach the plastic limit. Weak Some reaction,with bubbles forming The thread can be 9 slo wN 50 rerolled several times after reaching the plastic Strong Violent reaction,with bubbles forming immediately limit. The lump or thread can be formed without crumbling when drier than the plastic limit ' APPARENT/RELATIVE DENSITY-COARSE-GRAINED SOIL CONSISTENCY-FINE-GRAINED SOIL APPARENT MODIFIEDCA CALIFORNIA RELATIVE SPT-Nw SAMPLER SAMPLER DENSITY CONSISTENCY COMPRESSIVE CRITERIA DENSITY STRENGTH s ' r (#blows/n) (#blowsm) (#b (%) Very Soft <1000 Thumb will penetrate soil more than 1 in.(25 mm.) Z Very Loose <4 <4 <5 0-15 ry<5 1 P: Loose 4-10 5-12 5-15 15-35 Soft 1000-2000 Thumb will penetrate soil about 1 in. 25 mm. Medium Dense 10-30 12-35 15-40 35-65 Firm 2000-4000 Thumb will indent soil about 1/4-in.(6 mm.) W Dense 30-50 35-60 40-70 65-85 Hard 4000-8000 Thumb will not indent soil but readily indented with thumbnail ' VeryDense >50 >60 >70 85-100 Very Hard >8000 Thumbnail will not indent soil NOTE:AFTER TERZAGHI AND PECK,1948 Z STRUCTURE CEMENTATION ' w DESCRIPTION CRITERIA DESCRIPTION FIELD TEST w d at east 1/4layers k,varying material or color with layers Crumbles or breaks with handling or slight � Stratified at least l/4-in.thick note thickness Weakly finger pressure m Laminated Alternating layers of varying material or color with the layer Crumbles or breaks with considerable O less than 1/4-in,thick,note thickness Moderately finger pressure .q Breaks along definite planes of fracture with We resistance Fissured to fracturing Strongly Will not crumble or break with finger pressure n a: Slickensided Fracture planes appear polished or glossy,sometimes striated ' m Cohesive soil that can be broken down into small angular Blocky lumps which resist further breakdown 7 z Inclusion of small pockets of different soils,such as small lenses c Lensed of sand scattered through a mass of cla ;note thickness m o ' N ¢ Homogeneous Same color and appearance throughout h PROJECT 20162869 FIGURE NO.: LL, ("KLEINFIELDER ^\ SOIL DESCRIPTION KEY S r \ DRAWN BY: GG ' 7 L CHECKED BY: J.A.W. Delta Truck Center 6 JwBright5 People. Right Solutions. DATE: 4/14/2016 161 E.Transportation Ct. .J w \\ i San Joaquin County,California ' i i REVISED: 4/19/2016 w KLEINFELDER-2001 Arch-Airport Road,Suite 100 1 Stockton,CA 95206 1 PH:209.948.1345 1 FAX:209.234.4700 1 ewvw.kleinfelder.com