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

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter20: Design Of Rigid Pavements

Section: Chapter Questions

Problem 8P

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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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Question number (26) Highway Engineering civil engineering
A pavement element along Thika road of 100x150x200 mm was subjected to an equalall round pressure of 120kn/m2 and axial load of 2.5KN in the X-direction. The changesin length are 0.92mm in X-direction, 0.27mm in the Y-direction and 0.18mm in the Z direction. Calculate thei. Elastic theory ratio, Eii. Poisson’s ratio,iii. Bulk Modulus, K
tire with 700 kPa air pressure distributes a load over an area with a circular contact radius, a, of 130mm. The pavement was constructed with a material that has a modules of elasticity of 345000 kPa and a Poisson ratio of 0.45 and thickness of 30cm. Calculate the rudial-horizontal stress and deflection at a point the pavement surface under the center of the tire load. Also, calculate the radial-horizontal stress and deflection at a point at a depth of half pavement layer way from the centre of the tire load. (USE: Ahlvin and Ulery equations).
Question 18 A rigid pavement has a wheel load capacity of 53.96 kN. The allowable tensile stress of concrete is 1.37 MPa. Determine the thickness (cm) of the pavement if dowels are negligible. Express your answer in 1 decimal place.
Please solve all the questions asked
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-horizontal 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 = 0 E = 0.5 H = 2 ] Wrong answer will be instantly downvoted, don't attempt if not sure .
1. Figure (1) shows a pavement structure composed of three layers with their details. If the HMA and the base layers are combined into one layer with the same total thickness (HMA+base layers), what should be the equivalent elastic of the combined layer modulus so the tensile strain at the bottom of the the HMA= 0.0006 in. 30000 Ib 150 psi E, = ? 6 in HMA layer Ej = 400,000 psi V;=0.4 Granular base E = 20,000 psi V=0.4 20 in layer Subgrade layer E3 = 10,000 psi Vz=0.4 %3D
1
Give me right solution... Urgent please A 5 tonne wheel load is applied on a pavement and generates a surface deflection of 0.15 mm. A. If the pavement is 125 mm thick, what is the vertical stress at the top of the subgrade? B. If the equivalent radius of tyre contact is 100 mm and Poisson’s ratio is 0.3, what is the pavement’s modulus of elasticity
Q3/Choose the correct answer 1. In general PSI for flexible pavement depend on............ Va. Cracking, Patching and Rutting b. Cracking and Patching c. Patching and Rutting d. Rutting 2. The Maximum contraction joint spacing for plain jointed concrete pavement is C. 3.5 m b. 4.5 m c. 5.5 m d. Depends on traffic load 3. The relationship between A psi and age of pavement is...... a. A psi co age Apsi ∞ (1/age) c. A psi 02(1/age) d. Non of the above 4. The surface of the pavement should be a. Smooth b. Rough 5. Which type of aggregates gives good workability? a. Round b. Flaky c. Angular 6. Rutting may be avoided by a. Good compaction . Sufficient enough to resist skid b. Good drainage 7. Bleeding may be avoided by a. Water voids b. Air voids c. Asphalt type 12. Tie bars in cement concrete pavements are at a. Expansion joints d. All the above acceptable c. High filler percent All the above 8. The good drainage in pavement can La Increase the pavement life b. Decrease the pavement life…
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Design of pavement