A 58 kN wheel load for a secondary arterial road has a maximum tyre pressure of 0.68MPa. This pressure is uniformly distributed over the area of tyre contact on the roadway. Assuming the subgrade pressure is not exceeding 0.15 MPa, determine the required thickness of the flexible pavement structure according to the principle of cone pressure distribution.

Q: As shown in the figure below, a flexible pavement is consisted of 40 mm dense graded asphalt and 375…

A: In order to allow for this "flexing," flexible pavement structures often consist of numerous layers…

Q: A flexible pavement is known to have a structural number of 4.0 and a soil resilient modulus of…

A: According to given data  A flexible pavement is known to have a structural number of 4.0 anda soil…

Q: A flexible two-way roadway (as shown below) has two lanes each way with a two-way annual average…

A: n = 20 yearsAADT = 5460

Q: A pavement of 30 cm. thickness and modulus of elasticity of 3500 kg/cm². This layer is laid over a…

A: When a vehicle travels over a pavement, its total weight is divided among its tires to transfer the…

Q: Determine the required thickness of rigid pavement using the ASSHTO method according to the…

A: Rigid pavements are inflexible. they don't flex a lot under stacking like adaptable asphalts. They…

Q: A flexible pavement is constructed with 5 inches of hot mix asphalt wearing surface (material…

A: Flexible pavement: Flexible pavement is made out of a bituminous material surface course and basic…

Q: a max wheel load of 60 kN. Consider the effects of dowel at the center, fc’ = 20 MPa. Allowable…

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Q: A homogeneous half-space pavement is loaded by a set of dual tires that carries a total load of…

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Q: Using Stochastic Concept compute the pavement design required for a 9,000lb wheel load and 95 %…

A: Given ,Wheel load=9,000 lbreliability=95 %mean strength=600 psistandard deviation=50 psi

Q: Using the suitable diagram, describe the structures of the following pavements: In rigid pavement,…

A: Pavements : In civil engineering, pavement refers to the long-lasting paving of a road, airstrip, or…

Q: Traffic loading in the flexible pavement design equation is equal to the number of vehicles that use…

A: Flexible pavement consists of a surface layer of bitumen-bound aggregate (asphalt concrete), several…

Q: Using two layer theory, calculate magnitude and location of the maximum deflection in the pavem due…

A: ∆= 23.0388 inches

Q: A flexible pavement has the following class of loads during a particular hour of the day, i. 80…

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Q: A flexible pavement is constructed with 4 inches of hot-mix asphalt wearing surface, 10 inches soil…

A: Two methods of flexible pavement structural design are empirical design and mechanistic-empirical…

Q: The braking distance of a car from 90 km/h is 40 m assuming the pavement is level. (a) if the…

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Q: A flexible pavement is constructed with 3 inches of hot-mix asphalt (HMA) wearing surface, 6 inches…

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Q: if the pavementis with 6 inclination, what will be the braking distance (in meter) of the car going…

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Q: Compute the stresses at the bottom of a flexible pavement surface layer 0.3 m thick resting on a…

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Q: Q3 Truck A has two single axles. One axle weighs 12,000 lb and the other weighs 23,000 lb. Truck B…

A: Consider the given data 18 kips ESALs for vehicle, considering Table 4.2 and 4.3

Q: Compute the thickness of a flexible pavement for a wheel load of 55 kN, if the allowable bearing…

A: Given, Wheel load (P) = 55kN Equivalent radius = 170mm Allowable bearing pressure(f)= 0.15mpa Find…

Q: Calculate the following values using the one-layer equation Delta_{x} = (p(1 + mu) * a)/E_{1} *…

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Q: uestion 3 An undowelled rigid avement in a subdivision roadway as thickness equivalent to 300 mm.…

A: As per guidelines we need to answer only first question so please repost rest questions separately.

Q: A flexible pavement having a thickness of 80mm carries a static wheel load W. The circular contact…

A: Given: Thickness=80mm Radius=200mm Angle=45° To find: Value of wheel load

Q: Q5. Given the following information: A concrete pavement for two lane highway has doweled joints and…

A: Given;Modulus of subgrade reaction = 200 pci = (54.2 MN/m3)Modulus of rupture = 650 pci = (4.5…

Q: Discuss various tests used for the quality of bitumen used in flexible pavements

A: Bitumen is a complex material with a complex response to stress. All bitumens show viscoelastic…

Q: Rigid pavement may or may not have a base or subbase layer, А. True False B.

A: Rigid pavement may or may not have a base or sub base layer  and could be placed directly over the…

Q: Q2) A wheel load with circular area has a radius 6 in. and uniform pressure 552 kPa is applied on a…

A: Consider the given data P=Pressure=552 kPa=80 psiσ=8 psiEsub=70000 psiEHMA=350000 psi

Q: (c) Describe the basic element of the rigid pavement structure with using suitable diagram. a

A: Rigid pavement is constructed using PCC, RCC & prestressed concrete. They have better flexure…

Q: The equivalent standard axle lood repetitions for this vehicle combination as per IRC:37-2012 would…

A: Given data,  Flexible pavement has the following class of loads during a particular hour of the day,…

Q: A flexible pavement is constructed with 5 inches of hot mix asphalt wearing surface (material…

A: Flexible pavement: Flexible pavement is made out of a bituminous material surface course and basic…

Q: num wheel load that the pavement bearing capacity is equivalent to 0.- 45-deg cone pressure…

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Q: Q7. Determine Structural Number and terminal serviceability index value of flexible pavement. Given…

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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.