Question 2 The results of a standard compaction test on a soil (G; = 2.7) are as shown in the table below. w(%) xkN/m³) 16.9 6.8 8.1 9.8 11.5 13.2 15 17 18.5 19.5 20.5 20.1 19.2 18 (a) Using excel, plot the compaction curve. Submit your excel file with your exam solution (b) Plot the ZAV curve for the appropriate water content and dry density range (c) Construct the 80 % and 90% saturation lines (d) Determine the maximum dry unit weight and optimum water content (e) Determine the degree of saturation at the maximum dry density

Question 2 The results of a standard compaction test on a soil (G; = 2.7) are as shown in the table below. w(%) xkN/m³) 16.9 6.8 8.1 9.8 11.5 13.2 15 17 18.5 19.5 20.5 20.1 19.2 18 (a) Using excel, plot the compaction curve. Submit your excel file with your exam solution (b) Plot the ZAV curve for the appropriate water content and dry density range (c) Construct the 80 % and 90% saturation lines (d) Determine the maximum dry unit weight and optimum water content (e) Determine the degree of saturation at the maximum dry density

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter2: Origin Of Soil And Grain Size

Section: Chapter Questions

Problem 2.6P: Repeat Problem 2.4 with the following data. 2.4 The following are the results of a sieve analysis....

See similar textbooks

Similar questions

Repeat Problem 2.4 with the following data. 2.4 The following are the results of a sieve analysis. a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine D10, D30, and D60 for each soil. c. Calculate the uniformity coefficient Cu. d. Calculate the coefficient of gradation Cc.
Repeat Problem 2.8 using the following data. 2.8 The following are the results of a sieve and hydrometer analysis. a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt and clay according to the MIT system. c. Repeat Part b according to the USDA system. d. Repeat Part b according to the AASHTO system.
Refer to Problem 2.C.1. Results of the sieve analysis for Soils A, B, and C are given below. To obtain a more representative sample for further geotechnical testing, a ternary blend is created by uniformly mixing 8000 kg of each soil. Answer the following questions. a. If a sieve analysis is conducted on the mixture using the same set of sieves as shown above, compute the mass retained (as a percentage) and cumulative percent passing in each sieve. b. What would be the uniformity coefficient (Cu) and the coefficient of gradation (Cc) of the mixture?
Redo Problem 2.7 according to the AASHTO system (Table 2.3). 2.7 The particle characteristics of a soil are given below. Draw the particle-size distribution curve and find the percentages of gravel, sand, silt, and clay according to the MIT system (Table 2.3).
find the following: a. What is the value of the percent passing for sieve with 2 mm. opening in percentage? b. What is the value of the percent passing for sieve with 150 μm. opening in percentage? c. What is the value of the Effective Size of soil in mm.? d. What is the value of the coefficient of gradation?e.What is the value of the coefficient of uniformity? f. What are the percentages of gravel, sand, and Fines using the limits indicated by USCS? g. What are the percentages of gravel, sand, silt and clay using the limits indicated by MIT? h. What are the percentages of gravel, sand, silt and clay using the limits indicated by AASHTO? i. What are the percentages of gravel, sand, silt and clay using the limits indicated by USDA?
The following property is used to investigate the quality of compaction.
a completely dry sand sample fills a 200 cm 3 metal cylinder and weighs 260 g (Ws), having Ss = 2.6 Calculate e(void ratio), then complete the schematic. (see the picture). I WILL RATE IT.
In a hydrometer test, the results are as follows: Gs = 2.60, temperature of water = 24°, and hydrometer reading = 43 at 60 min after the start of sedimentation. What is the diameter, D, of the smallest-size grains that have settled beyond the zone of measurement at that time (that is, t = 60 min)?
For a given sieve analyis: No. 4 - % finer 100%, for No. 200 -%finer 86. LL=55, PL= 28. Classify the soil using USCS. Justify your answer.
Question 30 The data from a falling head test is shown. Diameter of standpipe: 6 cm. Initial Head: 90.4 cm. Duration of test: 18 min. Length of soil sample: 30.35 cm. Diameter of permeameter: 44 cm. If the soil permeability is 0.0038 cm/min, determine the final head (in cm.) of the permeability test. Round off to two decimal places.
Calculate the CEC of a 100g soil sample that was found to contain the following cations: Ca2+ = 0.12g Mg2+ = 0.024g K+ = 0.078g Al3+ = 0.027g NH4+ = 0.036g H+ = 0.002g
Enlist all the equipment used for compaction of subgrade, base and sub-base along with their efficiencies and also explain how will we check the compaction of base and sub-base layer at site?