SOILS/AGGREGATE TECHNICIAN REVIEW
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1 (8:00 to 4:00) SOILS/GGREGTE TECHNICIN REVIEW Intro TTI Safety Rounding Procedure Thursday RIZ 201 SHTO T 11 RIZ 210 SHTO T 19 RIZ 211 SHTO T 255 RIZ 212 RIZ 233 RIZ 236 RIZ 225 RIZ 245 SHTO T 89 SHTO T 90 SHTO T 265 Sieving of Coarse and Fine Graded Soils & ggregates Materials Finer then No. 200 Sieve in Mineral ggregates by Washing Specific Gravity and bsorption of Coarse ggregate Unit Weight and Voids in ggregate Specific Gravity and bsorption of Fine ggregate Total Moisture Content of ggregate by Drying Percentage of Fractured Coarse ggregate Particles Flakiness of ggregates ph and Resistivity of Soils Lunch 12:00 1:00 Max. Dry Dens. nd Opt. Moisture of Soils Method Proctor Max. Dry Dens. nd Opt. Moisture of Soils Method D Proctor Liquid Limit of Soils Plastic Limit of Soils Lab Determination of Moisture Content of Soils Friday SHTO T 176 SHTO T 21 RIZ 105 SHTO R76 Hands On Practice Hands On Practice 1:00 4:00 Hand Out Practice Calculations Check Practice Calculations Plastic Fines in Graded ggregates and Soils by Sand Equivalent Test Organic Impurities in fine ggregates for Concrete Sampling Soils and ggregate Reducing Field Samples of ggregate to Testing Size Lunch 12:00 1:00 DOT Materials Testing Manual andconstruction/construction and materials/materials manuals
2 SOILS & GG TECHNICIN REVIEW TRINING Practice Calculations
3 PERCENT PSSING CLCULTION (RIZ 201) To calculate percent passing you will need a scientific calculator with at least one memory. lways add up all the weights, never change the amount in the total box. If the calculated total is 1.0% or less from the total in the total box, adjust the number of the sieve weight with the largest amount retained, except for the passing #4. CORSE SIEVE a. To get the Coarse sieve factor, divide 100 by the total weight of sample (the number in the total box). b. Place the factor in the memory of the calculator (MR+). c. Enter 100 in the calculator, subtract the first weight retained, times (x) the factor (memory recall) (MR),then the key this will give you the % passing that sieve. d: Keeping that number in the calculator subtract the next weight retained, multiply it by the factor (MR) until all % passing is calculated and recorded. e. Continue this down to the #4 weight retained. f. Then do a check on the pass #4 by, multiplying the weight passing the #4 times the factor (MR). FINE SIEVE lways add up all the weights, never change the amount in the total box. If the calculated total is 1.0% or less from the total in the total box, adjust the number of the sieve weight with the largest amount retained except, for the passing #200. a. Subtract the Total Dry Weight from the Dry Wt. of -#4 Split weight to get the elutriation weight and record it in the box provided. b. To get the fine sieve factor, take the % passing the #4 (whole number) and divide it by the adjusted split weight. c. Place the factor in the memory of the calculator. d. Enter the % pass the #4 (whole number) in the calculator, subtract the weight retained on the #8 sieve, multiply, (x) it by the factor (MR) to get the % passing the #8. e. Keeping that number in the calculator subtract the next weight retained (#10), multiply (x) it by the factor (MR) until all % passing is calculated and recorded. f. Continue this procedure down to the #200. g. Do a check on the pass #200 by multiplying the (weight passing the 200 sieve plus + the elutriation weight) by the factor (MR). When all the percent pass results are recorded, you may now record the percent retained for each sieve. Start with the largest % pass and subtract the next smaller % pass from it. Continue this down to the #200 sieve(rounded).
4 Practice Calculations
5 Specific Gravity and bsorption of Fine ggregate (RIZ 211) Bulk Sp. Gr. ( ) (O.D. basis) B S - C ( ) + ( ) - ( ) Where: mass of oven-dry sample in air, g. B mass of pycnometer filled with water, g. C mass of pycnometer with sample and water to calibration mark, g. S mass of saturated-surface-dry sample, g Bulk Sp. Gr. S ( ) (SSD basis) B S - C ( ) + ( ) - ( ) pparent Sp. Gr. B ( ) - C ( ) + ( ) - ( ) bsorption, percent S - x 100 ( ) - ( ) ( ) x 100 % Specific Gravity and bsorption of Coarse ggregate (RIZ 210) Bulk Sp. Gr. ( ) (O.D. basis) B - C ( ) - ( ) Where: mass of oven-dry sample in air, g B mass of saturated-surface-dry sample in air, g C mass of saturated sample in water, g Bulk Sp. Gr. B ( ) (SSD basis) B - C ( ) - ( ) ( ) pparent Sp. Gr. - C ( ) - ( ) B bsorption, percent - x 100 ( ) - ( ) x 100 % ( ) Practice Calculations # 4
6 Flakiness Index (RIZ 233) Fractured Particles Sieve Size 1-1/2" 1" 3/4" 1/2" 3/8" 1/4" # 4 # 8 (RIZ 212) % Pass from Sieve nalysis t least one Fractured Face: % Ret. From Sieve nalysis (F) Wt. of test sample (Wa) 496 Weight of Test Sample Wt. of fract. Particles(Wf) 444 Weigh Passing Slot Fract. Particles (FF) x 100 % * Percent Passing Slot (P) t least two Fractured Face: Wf Wa NOTE: Only the size fractions which have 10 or more percent retained are tesed for passing the appropriate slot, and used to determine the Flakiness Index by the eequation below. * Percent Passing Slot (P) Weight Passing Slot Wt. of test sample (Wa) N x 100 Weight of Test Sample Wt. of fract. Particles(W2) N FLKINESS INDEX {F (11/2") X P (11/2")} {F (No. 8 X P (No. 8)} Fract. Particles (FF2) W 2 x 100 N % {F (1-1/2") {F (No. 8)} Wa FLKINESS INDEX ( x ) + ( x ) + ( x ) % ( ) + ( ) + ( ) Wet Weight - Dry Weight Moisture Content (T255, T265) Dry Weight ( ) - ( ) % x 100 x 100 ( ) Practice Calculations # 4
7 Sand Equivalent brasion Plasticity Index SHTO T176) SHTO T96) (SHTO T89 & 90) (RIZ 242 FOR M..F.C) Liquid Limit (LL) : Sand Reading 3.8 % brasion Bottle # 7 Tare Wt. of Bottle: # Blows 25 Clay Reading 6.1 % Moisture Sand Equiv. Where: Original Mass (5000 ± 10 grams) (Wet Wt. With Bottle) - (Dry Wt. With Bottle) x 100 (Dry Wt. With Bottle - Tare Wt. of Bottle) Sand Reading 4.3 B Plus # 12 Material after brasion ( ) x 100 % ( Clay Reading - ) 6.6 Sand Equiv. 100 Rev.: x 100 % Liquid Limit (For 25 Blows) 500 Rev.: x 100 % Plastic Limit (PL) : Sand Reading 4.1 Bottle # 21 Tare Wt. of Bottle: Clay Reading 6.7 Sand Equiv. Type of brasion (Wet Wt. With Bottle) - (Dry Wt. With Bottle) x 100 (Dry Wt. With Bottle - Tare Wt. of Bottle) SandReading Clay Reading x 100 ( ) x 100 % ( - ) verage Sand Equiv. Plastic Limit Plasticity Index (PI) : Soils Practice Calculations # 4 PI (LL - PL) ( ) - ( )
8 RIZON DEPRTMENT OF TRNSPORTTION CLIBRTION OF PROCTOR MOLD RIZ 225 ppendix Four Inch Mold Six Inch Mold Mold I. D. #: 2 Calibration Date: Calibration Expiration Date: Temperature of water used for Calibration: 78 F Unit Weight of Water: Test Operator: lb. /cu. ft. Supervisor and Date: Weight of Baseplate, Empty Mold, and Glass Plate (grams) Weight of Baseplate, Mold Filled with Water, and Glass Plate (grams) Weight of Water to Fill Mold (grams) V Volume of Unit Weight Mold of Water (cu. ft.) (lb. / cu. ft. Weight of Water to FillMold (grams) X (grams / lb.) V ( ) ( ) X ( ) cu. ft. REMRKS: Practice Calulation # 4 Unit Weight of Water Table Temp F lbs/cu. Ft. Temp F lbs/cu. Ft
9 rizona Department of Transportation METHOD or LTERNTE METHOD D PROCTOR DENSITY (rizona Test Method 225 or 245) Project No: Lab No : Rec d Date: 05/04/2011 Source and Type of Material : Proctor Method Used : Method or lternate Method D Test Operator and Date : Supervisor and Date: Weight of Mold M2 pprox % of water dded Wt. of Sample and Mold 2015 grams cu. ft. b M1 c WD ED Wet Wt. of Sample Wet Density lb/ cu ft Volume of Mold VM Est. Dry Density a VM x Moisture Determination WW DW d e Wet Wt. of Moisture Sample Dry Wt. of Moisture Sample Wt. of Water Percent Moisture Dry Density lb/cu ft M1 - M2 c WD x 100 WW - DW d x 100 WD x 100 a b DW e DD METHOD WT WR4 PR4 WR4 x 100 WT LTERNTE METHOD D WT WR 3/4 PR 3/4 WR 3/4 x 100 % WT Coarse ggregate Bulk Oven Dry Specific Gravity : Coarse ggregate bsorption : Dry Density lb. / cu. ft. WT (Total Wt. from Gradation Card) WR4 Total Wt minus the (- #4 Weight) on sieve analysis PR4 % of + #4 material e ce t o stu e OPTIMUM MOISTURE CONTENT OM MXIMUM DRY DENSITY ( lb. / cu. ft. ) MD Remarks : StudyGuideCalculations Percent Moisture
10 Practice Calulations 4
11 RIZ 236 WORK CRD DETERMINING ph ND MINIMUM RESISTIVITY OF SOILS ND GGREGTES Lab Number: Practice Calulations # 4 Date: 10/27/2015 Project / TRCS #: Tested By: MINIMUM RESISTIVITY ph Range Setting Dial Reading 1,000 X 5.8 Resistance, Sample Water Ohms Weight: 50.1 g Weight: g 1,000 X 4.5 Start Time: 1,000 X 4.1 Stir 1,000 X 2.7 Stir 1,000 X 1.8 Stir 1,000 X 1.4 Stir 100 X 1.9 Stir 100 X 3.9 Stir X Stir 9:00 X X Stir End Time: Soil Box Factor ph Reading ph Buffers used for calibration of ph meter: (Minimum Resistivity, hm-cm) (Resistance, hms) x (Soil Box Factor, cm) ( ) X ( ) hm-cm MINIMUM RESISTIVITY hm-cm
12 SOILS & GG TECHNICIN REVIEW TRINING Practice Calculations nswer Key
13 Practice Gradation Calculations CORSE FCTOR / Wt. Retained % RET. % PSS 3" Wt. RET. (Memory Recall) 2 1/2" 2" (MR) x /2" x (MR) " x (MR) /4" x (MR) /2" x (MR) /8" x (MR) /4" x (MR) # # #4 Check x Total DRY WT. OF- #4 SPLIT FINE FCTOR / # x # x (MR) # x (MR) # x (MR) # x (MR) # x (MR) # x (MR) # # x (MR) Total 390 Elutriation 121 -# 200 Check x (MR) (Elutriation + - # 200's)
14 Practice Calculations
15 Specific Gravity and bsorption of Fine ggregate (RIZ 211) Bulk Sp. Gr. ( ) (O.D. basis) B S - C ( ) + ( ) - ( ) Where: mass of oven-dry sample in air, g B mass of pycnometer filled with water, g. C mass of pycnometer with sample and water to calibration mark, g. S mass of saturated-surface-dry sample, g Bulk Sp. Gr. S ( ) (SSD basis) B S - C ( ) + ( ) - ( ) pparent Sp. Gr. bsorption, percent B S - - x C ( ) ( ) + ( ) - ( ) ( ) - ( ) 7.3 x 100 ( ) 1.48 % Specific Gravity and bsorption of Coarse ggregate (RIZ 210) Bulk Sp. Gr. ( ) (O.D. basis) B - C ( ) - ( ) 1550 Where: mass of oven-dry sample in air, g B mass of saturated-surface-dry sample in air, g C mass of saturated sample in water, g Bulk Sp. Gr. B ( 4036 ) (SSD basis) B - C ( 4036 ) - ( 2486 ) pparent Sp. Gr. - C ( 3950 ) ( 3950 ) - ( 2486 ) B bsorption, percent - x 100 ( 4036 ) - ( 3950 ) % x 100 ( 3950 ) Practice Calculations # 4 Key
16 Flakiness Index (RIZ 233) Fractured Particles Sieve Size 1-1/2" 1" 3/4" 1/2" 3/8" 1/4" # 4 # 8 (RIZ 212) % Pass from Sieve nalysis t least one Fractured Face: % Ret. From Sieve nalysis (F) Wt. of test sample (Wa) 496 Weight of Test Sample Wt. of fract. Particles(Wf) 444 Weigh Passing Slot Fract. Particles (FF) Wf x % Wa * Percent Passing Slot (P) t least two Fractured Face: * Percent Passing Slot (P) Weight Passing Slot Wt. of test sample (Wa) N x 100 Weight of Test Sample Wt. of fract. Particles(W2) N FLKINESS INDEX {F (11/2") X P (11/2")} {F (No. 8 X P (No. 8)} Fract. Particles (FF2) W 2 x 100 N % {F (1-1/2") {F (No. 8)} Wa NOTE: Only the size fractions which have 10 or more percent retained are tesed for passing the appropriate slot, and used to determine the Flakiness Index by the eequation below. FLKINESS INDEX ( 190 ) + ( 170 ) + ( 224 ) ( 10 x 19 ) + ( 10 x 17 ) + ( 14 x 16 ) 584 % ( 10 ) + ( 10 ) + ( 14 ) Moisture Content (T255, T265) Wet Weight - Dry Weight Dry Weight x ( ) - ( ) % x 100 ( )
17 Sand Equivalent brasion Plasticity Index SHTO T176) SHTO T96) (SHTO T89 & 90) (RIZ 242 FOR M..F.C) Liquid Limit (LL) : Sand Reading 3.8 % brasion Bottle # 7 Tare Wt. of Bottle: # Blows 25 Clay Reading 6.1 % Moisture Sand Equiv. 63 Where: Original Mass (5000 ± 10 grams) (Wet Wt. With Bottle) - (Dry Wt. With Bottle) (Dry Wt. With Bottle - Tare Wt. of Bottle) x 100 (3.0 / 12.8) X Sand Reading 4.3 B Plus # 12 Material after brasion ( ) % x 100 ( Clay Reading ) Sand Equiv Rev.: x 100 % Liquid Limit 23 (For 25 Blows) Rev.: x 100 % Plastic Limit (PL) : Sand Reading 4.1 Bottle # 21 Tare Wt. of Bottle: Clay Reading 6.7 Sand Equiv. 62 Type of brasion (Wet Wt. With Bottle) - (Dry Wt. With Bottle) x 100 (Dry Wt. With Bottle - Tare Wt. of Bottle) SandReading Clay Reading x 100 verage Sand Equiv (0.96 / 6.56) X ( ) % x 100 ( ) 6.56 Plastic Limit 15 Plasticity Index (PI) : Soils Practice Calculations # 4 Key PI (LL - PL) ( 23 ) - ( 15 ) 8
18 RIZON DEPRTMENT OF TRNSPORTTION CLIBRTION OF PROCTOR MOLD RIZ 225 ppendix Four Inch Mold Six Inch Mold Mold I. D. #: 2 Calibration Date: Calibration Expiration Date: Temperature of water used for Calibration: Unit Weight of Water: Test Operator: lb. /cu. ft. 78 F Supervisor and Date: Weight of Baseplate, Empty Mold, and Glass Plate (grams) Weight of Baseplate, Mold Filled with Water, and Glass Plate (grams) Weight of Water to Fill Mold (grams) V Volume of Mold (cu. ft.) Weight of Water to FillMold (grams) Unit Weight of Water (lb. / cu. ft. X (grams / lb.) V ( ) cu. ft. ( ) X ( ) REMRKS: Practice Calulation key Unit Weight of Water Table Temp F lbs/cu. Ft. Temp F lbs/cu. Ft
19 rizona Department of Transportation METHOD or LTERNTE METHOD D PROCTOR DENSITY (rizona Test Method 225 or 245) Project No: Lab No : Rec d Date: 01/00/1900 Source and Type of Material : Proctor Method Used : Method or lternate Method D Test Operator and Date : Supervisor and Date: Weight of Mold M grams Volume of Mold VM cu. ft. a VM x b M1 c WD ED Moisture Determination WW DW d e DD Wet Wt. pprox % Wt. of Wet Wt. Dry Wt. of Dry Wet Density Est. Dry of Wt. of Water Percent of water Sample of Moisture Density lb/ cu ft Density Moisture Moisture dded and Mold Sample Sample lb/cu ft Sample M1 - M2 c WD x 100 WW - DW d x 100 WD x 100 a b DW e WT WR PR4 WR4 x % WT % LTERNTE METHOD D WT WR 3/4 PR 3/4 WR 3/4 x 100 % WT Coarse ggregate Bulk Oven Dry Specific Gravity : Coarse ggregate bsorption : METHOD Dry Density lb. / cu. ft. WT (Total Wt. from Gradation Card) WR4 Total Wt minus the (- #4 Weight) on sieve analysis PR4 % of + #4 material (9842 / 21627) x % e ce t o stu e OPTIMUM MOISTURE Sm Graph CONTENT OM 10.9 MXIMUM DRY DENSITY ( lb. / cu. ft. ) MD Remarks : StudyGuideCalculations Key Percent Moisture
20 Practice Calculations #
21 RIZ 236 WORK CRD DETERMINING ph ND MINIMUM RESISTIVITY OF SOILS ND GGREGTES Lab Number: Practice Calulations Key Date: 10/27/2015 Project / TRCS #: Tested By: MINIMUM RESISTIVITY ph Range Setting Dial Reading 1,000 X 5.8 5,800 Resistance, Sample Water Ohms Weight: 50.1 g Weight: 50.1 g 1,000 X 4.5 4,500 Start Time: 1,000 X 4.1 4,100 Stir 1,000 X 2.7 2,700 Stir 1,000 X 1.8 1,800 Stir 1,000 X 1.4 1,400 Stir 100 X Stir 100 X Stir X Stir 9:00 9:10 9:20 9:30 9:40 9:50 10:00 X X Stir End Time: 10:00 Soil Box Factor ph Reading ph Buffers used for calibration of ph meter: 7 & 10 (Minimum Resistivity, hm-cm) (Resistance, hm) x (Soil Box Factor, cm) ( 190 ) X ( 6.71 ) hm-cm MINIMUM RESISTIVITY 1275 hm-cm
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