Transportation_3.2_..utuiial places.b) Suppose you have to construct a railway track with a good quality ballast which can befound in the natural deposit. In this case, which type of ballast material will you prefer?List their advantages and disadvantages.

Ballast is the material which is used in railway tracks for the stability of the sleepers, absorbing…

Answered: b) Suppose you have to construct a…

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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Briefly describe the three forms clay can be found in with supporting examples.
Coarse aggregate is placed in a rigid bucket and compacted with a tamping rod to determineits unit weight. The following data are obtained:• Volume of bucket = 0.5 ft3• Weight of empty bucket = 20.3 lb• Weight of bucket filled with dry compacted coarse aggregate = 76.8 lba) Calculate the dry-compacted unit weight of the aggregate.b) If the bulk dry specific gravity of the aggregate is 2.620, calculate the percent voids.
Void Content—Calculate the void content in the aggregate using the bulk densitydetermined by either the rodding, jigging or shoveling procedure, as follows:
For a natural raw water containing the following water quality in the table. Check lecture 05 slides on page 52 to determine how much slaked lime is needed remove all hardness. Atomic weight or molecular Concentration weight (g/mol) 120 mg/L 100 mg/L as CaCO3 25 meg/L Ca2+ 40 Mg2+ HCO3 24 61 O A. 5 meq/L О В. 700 mg-СаСОЗ/L O C. 15 meq/L O D. No lime is needed.
the characteristics of gravel depending on appearance, texture, color, and layers
Three samples of fine aggregate were taken from the same stockpile and have the properties shown below. Determine in percentage: (a) total moisture content of each sample, (b) free moisture content of each sample, and (c) the average values of each from the stockpile. Measure Wet Mass (g) Dry Mass (g) Absorption (%) A 521.0 491.6 2.5 Sample B 522.4 491.7 2.4 C 523.4 492.1 2.3
Standard Test Method For Penetration of Bituminous test 1. Importance of penetration test.2. Effect of temperature, load and time on penetration values. State otherconditions.3. The use of different grade in different climates.4. What is the meaning of “consistency of bituminous materials”?5. Which value of penetration can be used in construction of roads in Iraq?
Several buildings have foundations made of material such as concrete. In fact, the compressive strength of concrete is a critical factor in providing a firm foundation of structures. The stress-strain diagram of concrete shown below has the points of failure as indicated by dots. (a)Determine the Young's modulus for this particular concrete under compression. See stress-strain diagram in figure 05. * Tenrle 10' Pa Bb 5.0 Compremve Tenale tren, 10 tren, 10 150 Cempreeren 'Pa Figure 05 O 25 GPa O 25 MPa O 25 KPa O 0.04 nPa O other:
consists of particles which vary in size between (2 - 0.06) mm and it is mainly consists of Quartz with small percentages of other minerals. اخترأحد الخيارات a. Sand b. Gravel C. Silt CLEAR MY CHOICE
The specific gravity and absorption test (ASTM C128) were performed on fine aggregate. The following data were obtained.Given:Mass of SSD sand = 400.0 gMass of pycnometer with water = 520.0 gMass of pycnometer with water plus sand = 850.0 gMass of dry sand = 397.0 gRequired:a) absorption, in percentb) free moisture if the sand in the stockpile has a moisture content of 3% bbbbbbbbbbbbbb
Describe the void ratio changes from the initial state to the consolidated state and to the failure state and then explain the causes for the changes.
(b) Nabil had attended a short seminar on the application of mat foundation on the peat soil. Due to lack of knowledge in geotechnics, he could not understand what is the effective stress mentioned by the keynote speaker. As a friend, could you help Nabil by explaining to him the relationship between effective stress, total stress and pore pressure?

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b) Suppose you have to construct a railway track with a good quality ballast which can be found in the natural deposit. In this case, which type of ballast material will you prefer? List their advantages and disadvantages.