EBK PRINCIPLES OF GEOTECHNICAL ENGINEER
9th Edition
ISBN: 8220103611718
Author: SOBHAN
Publisher: CENGAGE L
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Question
Chapter 4, Problem 4.2CTP
(a)
To determine
The range of liquidity index for each soil over the range of moisture content.
(b)
To determine
Find the probable engineering behaviour of each soil as the moisture content changes.
Expert Solution & Answer
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Calculation:
Mmoist - Maryx 100%
MC = :
Mary
Where:
MC = moisture content in percent
Mmoist = mass of original specimen
Måry
= mass of oven dry specimen
Tabulated Data and Result
Sample No.
Mmoist (kg)
Mdry (kg)
MC
1
0.5
0.25
0.4
0.18
3
0.5
0.22
4
0.3
0.13
Q1: A volume of porous media is 2 m³ and its water content is 0.5. If the practical
density is 2.65 g/cm³ and the porosity is 0.7 then find:
1- Bulk density?
And
2-What is Va?
One of the most challenging problems in environmental remediation is isolated blobs of
contaminated fluid that become trapped in soils by capillary forces (i.e., surface
tension). The pore space can be analyzed by analogy to a thin-diameter glass tube.
Under the conditions given, what is the maximum length of water, I, that can be
retained in the vertical glass tube shown? [mm]
• contact angle 0 = 0⁰
• surface tension o= 72 dyn/cm = 0.072 N/m
• tube diameter D = 2.0 mm
•
●
neglect the small volume of water above the meniscus
the weight of water completely removes the curvature in the lower air-water interface
Chapter 4 Solutions
EBK PRINCIPLES OF GEOTECHNICAL ENGINEER
Ch. 4 - During Atterberg limit tests in the soil mechanics...Ch. 4 - Prob. 4.2PCh. 4 - Prob. 4.3PCh. 4 - Results from a liquid limit test conducted on a...Ch. 4 - The following data were obtained by conducting...Ch. 4 - Refer to the soil in Problem 4.5. Using the...Ch. 4 - Following results are obtained for a liquid limit...Ch. 4 - Prob. 4.8PCh. 4 - Prob. 4.9PCh. 4 - Prob. 4.10P
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- Q1: A volume of porous media is 2 m³ and its water content is 0.5. If the practical density is 2.65 g/cm³ and the porosity is 0.7 then find: And 2-What is Va? 1- Bulk density? Poarrow_forward(d) Ca(HCO3)2 = 150 mg/L; Mg(HCO3)2 = 200 mg/L; CaSO4 = 180 mg/L; MgCl2 = 95 mg/L; CaCl2 = 137 mg/L; turbidity = 15 mg/L; NaCl = 58.5 mg/L. Calculate: (i) Carbonate and non-carbonate hardness in degree Clark. (ii) The cost of limesoda process, if lime (95% pure) is Rs.200/10 Kg and soda (86%pure) is Rs. 400/10 Kg for softening of 150,000 liters of hard water using Al2(SO4)3 as a coagulant @ 28.5 mg/L. (iii) A hard water sample having 530 ppm CaCO3 equivalent hardness was completely softened on passing over a zeolite bed. The exhausted bed was subsequently regenerated using 75 liters of 45 percent brine solution. Calculate the quantity of hard water that has been softened using zeolite softener.arrow_forwardOne of the most significant properties influence on porosity quality is: Clay minerals and solution grain shape and grain packing Grain size and grain size distribution None of thesearrow_forward
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