1.7.4 Relationship between moisture content, bulk density, and CBR for crushed aggregate to be used as a road base are: Moisture Content (%) Bulk Density (Mg/m³) Dry Density (Mg/m³) 2.34 2.151 4.58 2.225 6.23 2.335 8.47 2.335 11.41 2.331 No. of blows per layer Top CBR (%) Bottom CBR Dry density (Mg/m³) (%) 15 1.928 57.9 67.5 35 2.050 77.1 89.7 65 2.186 88.8 100.3 Plot dry density vs. moisture content and soaked CBR vs. dry density and determine: a) b) c) Maximum dry density, MDD Optimum moisture content, OMC, and CBR value at 95% of MDD. Moisture Content, % 120 110 100 90 80 70 60 1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15 2.20 2.25 2.30 Dry Density, Mg/m3 CBR, % Dry Density, Mg/m3

1.7.4 Relationship between moisture content, bulk density, and CBR for crushed aggregate to be used as a road base are: Moisture Content (%) Bulk Density (Mg/m³) Dry Density (Mg/m³) 2.34 2.151 4.58 2.225 6.23 2.335 8.47 2.335 11.41 2.331 No. of blows per layer Top CBR (%) Bottom CBR Dry density (Mg/m³) (%) 15 1.928 57.9 67.5 35 2.050 77.1 89.7 65 2.186 88.8 100.3 Plot dry density vs. moisture content and soaked CBR vs. dry density and determine: a) b) c) Maximum dry density, MDD Optimum moisture content, OMC, and CBR value at 95% of MDD. Moisture Content, % 120 110 100 90 80 70 60 1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15 2.20 2.25 2.30 Dry Density, Mg/m3 CBR, % Dry Density, Mg/m3

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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all 5.21 A sieve analysis test was performed on a sample of aggregate and produced the results shown in Table P5.21. TABLE P5.21 Sieve Size, mm 25 19 12.5 9.5 4.75 2.36 Amount Retained, g 0 376.7 888.4 506.2 1038.4 900.1 live prised 1973 Sieve Size,TBA mm 1.18 0.60 0.30 0.15 0.075 Pan lusta) groads to storic Amount Retained, g 891.5 712.6 625.2 581.5 242.9 44.9 Calculate the percent passing through each sieve. Plot the percent passing versus sieve size on: a. a semilog gradation chart, and b. a 0.45 gradation chart (Figure A.25). What is the maximum size? What is the nominal maximum size?
4 pts Question 23 What is the fineness modulus of this aggregate? % Cumulative Retained Retained Mass 0% Sieve Size (US) (g) Retained Passing 1" 3/4" 1/2" 3/8" # 4 650 18.3 700 19.7 632 17.8 175 4.9 # 8 200 5.6 #16 W 150 4.2 #30 125 3.5 #50 331 9.3 #100 288 8.1 #200 250 7 Pan 50 1.4 Total 3551 O 5.20 O 1.57 O 3.89 O 6.50
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Three samples of aggregates were taken weighed in moist and dry condition. Moist Dry Unit Absorption Volume (m3) Unit Aggregate Wt. Wt. (%) (kN/m3) (kN/m3) Sample 1 23.425 20.018 5.14 0.366 Sample 2 22.7 18.757 3.87 0.695 Sample 3 20.292 18.387 2.62 0.237 Where; Unit weight of water = 9.81 kN/m3 %3D Determine the average free moisture content of the three samples.
Three samples of aggregates were taken weighed in moist and dry condition. Moist Dry Unit Unit Absorption Volume Aggregate Wt. Wt. (%) (m³) (kN/m) (kN/m³) Sample 1 23.425 20.018 5.14 0.366 Sample 2 22.7 18.757 3.87 0.695 Sample 3 20.292 18.387 2.62 0.237 Where; Unit weight of water = 9.81 kN/m3 Determine the average free moisture content of the three samples.
Three samples of fine aggregate have the properties shown in Table P5.9. TABLE P5.9 Sample Measure A B Wet Mass (g) 521.0 522.4 523.4 Dry Mass (g) 491.6 491.7 492.1 Absorption (%) 2.5 2.4 2.3 Determine in percentage: (a) total moisture content and (b) free moisture content for each sample and the average of the three samples.
Qиestion no.08 The result of specific gravity test is given below Weight of saturated aggregate in water =618gm Weight of oven dry sample = 982 gm Weight of saturated surface dry aggregate = 990 gm (i) Calculate the specific gravity of aggregate?
Bulk Specific Gravity of aggregate is defined as the mass of the stone divided by the volume of the solid stone plus the internal voids plus the volume of the external voids true or false
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7 The specific gravity and absorption test (ASTM C128) was performed on fine aggregate and the following data were obtained:Mass of SSD sand = 500.0 gMass of pycnometer with water only = 623.0 gMass of pycnometer with sand and water = 938.2 gMass of dry sand = 495.5 gCalculate the specific gravity values (dry bulk, SSD, and apparent) and theabsorption of the fine aggregate