QS: Select the correct answer for the following multiple-choice questions:1. In circular loading on flexible pavements, deflection of rigid plate isa Equal to flexible plate b. 79% less than flexible plate e. 127% more than flexibleplated. No relation2. Horizontal tensile strain at bottom of Asphalt cement layer causesa Ruttingb. Top-down cracking c. Bottom-up crackingd. Thermal eracks3. Present Serviceability Index (PSI) is a measure to quantify pavement:a. Performance b. Thickness c. Pavement life d. Drainage4. A rigid pavement that has no transverse joints is, except construction or expansion joints atspecific positions, such as at bridgesc. CRCPS. Pavement failures have negative impacts ona Serviceability b. Riding quality c. Performancea. PCPb. RCPd. ESALd All the above

Hi! Thank you for the question, as per the honor code, we are allowed to answer three sub-parts at a…

QS: Select the correct answer for the following multiple-choice questions: 1. In circular loading on flexible pavements, deflection of rigid plate is a Equal to flexible plate b. 79% less than flexible plate e. 127% more than flexible plate d. No relation 2. Horizontal tensile strain at bottom of Asphalt cement layer causes a Rutting b. Top-down cracking c. Bottom-up cracking d. Thermal cracks 3. Present Serviceability Index (PSI) is a measure to quantify pavement: a. Performance b. Thickness c. Pavement life d. Drainage

QS: Select the correct answer for the following multiple-choice questions: 1. In circular loading on flexible pavements, deflection of rigid plate is a Equal to flexible plate b. 79% less than flexible plate e. 127% more than flexible plate d. No relation 2. Horizontal tensile strain at bottom of Asphalt cement layer causes a Rutting b. Top-down cracking c. Bottom-up cracking d. Thermal cracks 3. Present Serviceability Index (PSI) is a measure to quantify pavement: a. Performance b. Thickness c. Pavement life d. Drainage

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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Concept explainers

Design of pavements

Pavement is a structure that is made up of different layers such as sub-base course layer, base course layer, binder course, and a surface course formed with different materials such as gravel, above the subgrade soil constructed to act as a path or carriageway enabling the movement of vehicles. The surface of the pavement should possess characteristics such as adequate friction, light reflection, and drainage. The pavements are classified based on structural design into rigid pavements, flexible pavements, composite pavements, and unpaved pavements. The process of determining a suitable pavement type, its constituent layers, and its thickness is called pavement design.

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Civil engineering material question 7 and 8
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The maximum wheel load that the pavement could carry is 120 kN. If the contact radius of the wheel is assumed to be 250 mm, and subgrade bearing capacity is equivalent to 0.24 Megapascals, calculate the subgrade layer thickness of the flexible pavement in mm using the 45-deg cone pressure distribution method. Use the editor to format your answer
Design of Pavement: The thickness of a concrete pavement slab is 20 cm and has modulus of elasticisty and poisson's ratio of 3x105 kg/cm2 and 0.15, respectively. Determine the radius of relative stiffness of the slab if it is resting on a subgrade of 5 kg/cm3 modulus.
choose True or false Q1A- Initial tangent modulus is given by the slope of a line drawn tangent to the stress-strain curve at any point on the curve. * True False B- Plastic shrinkage of concrete is higher at a larger cement content. * True False C- Dynamic modulus of elasticity of concrete is approximately taken as equal to the secant modulus of elasticity of concrete * True False
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Every information is correct. Please do it correctly or let other experts do it. Don't reject A tyre with 230 kPa air pressure distributes a load over an area with circular contact radius of 200 mm. The pavement was constructed with a material that has a modulus of elasticity of 450 MPa and a Poisson's ratio of 0.40. 1.1 Calculate the radial-horizo talking stress and deflection at a point on the pavement surface under the center of the tyre load. [Function values table: A 1 B-0 C-O R-0.5 H=2]
The following figure shows concrete pavement with the layer thickness and elastic modulus as indicated. Assume modulus of rupture of 650 psi, load transfer coefficient of 3.2, serviceability loss from 4.5 to 2.5, and drainage coefficient of 0.9. The bedrock depth and loss of support is not considered for the subgrade. Use the design equation or monograph with 50% reliability to solve the following: 1) Determine the number of ESAL that the pavement can carry before failure. 2) If the daily traffic has 1080 single axles (20-kip), 400 single axles (24-kip), and 680 tandem axles (40-kip), and the annul traffic is the same over the design period, how many years would the concrete pavement last before failure? 8-inch Portland Cement Concrete Ec=4×106 psi 8-inch Granular Subbase Ec=30,000 psi Subgrade Mr = 5000 psi
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