Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Transcribed Image Text:A sample of sand has the following
properties:
Moist mass = 625.2 g
Dry mass = 589.9 g
absorption = 1.6%
Find the surface moisture in %. Use 1 decimal
place only for your final answer.
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- The laboratory test data for a standard Proctor test are given below. Volume of Mass of wet soil in the mold (kg) Moisture content Proctor mold (%) (ст3) 943.3 1.65 10 943.3 1.75 12 943.3 1.83 14 943.3 1.81 16 943.3 1.76 18 943.3 1.70 20 a) Find the maximum dry unit weight and optimum moisture content. b) Calculate the zero-air-void unit weights for a soil with G, =2.68 at moisture content of 5, 10, 15, 20, and 25%. Plot a graph of Yzav versus moisture content.arrow_forwardThe lab methods discussed in class are not the only means of measuring specific gravity- one can also measure the volume of water displaced directly. Suppose you have a sample of sand that displaces 251 cm³ in the SSD state. The sample has an SSD weight of 618 g and an oven dry weight of 599 g. Calculate the bulk specific gravity (SSD), bulk specific gravity, apparent specific gravity, and absorption (dry) of the material.arrow_forwardA 627-g sample of sand was found to have the following amounts of material retained on each sieve/pan: 3/8 in. = 22 g, No. 4 = 45 g, No. 8 = 96 g, No. 16 = 122 g, No. 30 = 163 g. No. 50 86 g, No. 100 = 51 g, No. 200 = 30 g, pan = 11 g a. Calculate the fineness modulus of the sand. b. Is this sieve analysis valid for acceptance purposes? Explain why. c. Does the sand meet the particle size criteria of ASTM C 33. Fully justify your answer (list and check all relevant criteria from ASTM C33)arrow_forward
- An oven dry sand mass with a dry unit weight of 105pcf and Gs of 2.70 is placed outdoors in a container. Overnight, it rains. As it rains, the total volume of the soil specimen within the container remains the same, yet the S increases to 55% by the time the rain is over for the night. a. Determine the new total unit weight of the soil after the rain in units of pcf. Express your answer in four significant figures. Show full phase diagram.arrow_forwardA SOIL SAMPLE WAS TAKEN FROM A SITE AND WAS PLACED IN A CUBICAL CONTAINER WITH ONE SIDE EQUAL TO 0.1m. THE NET WEIGHT OF THE SOIL IS FOUND OUT TO BE 2kN. AFTER OVEN DRYING, THE WEIGHT WAS REDUCED TO 53%. WHAT IS THE UNIT WEIGHT OF THE SOIL AFTER DRYING? * Your answerarrow_forwardThe coefficient of permeability (K value) of a soil describes how easily a liquid will move through a soil. True )False Permeability measurement is used to: calculation of seepage through earth dams calculation of seepage under sheet pile walls estimating the seepage rate from waste storage O all of the answers are correct Which state describes soil that does not show cracks when deformed (choose correct state that applies). A) Plastic state B) Liquid State C) Semisolid state D) Solid statearrow_forward
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