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The pavement structure consists of 160 mm of hot-mix asphalt (HMA), 150 mm of granular base and 450 mm of subbase placed over silty clay subgrade. The pavement is 20 years old and its current PCI is 50. The pavement currently exhibits low to medium and localized high severity alligator cracking, low to medium severity rutting, low severity raveling and low severity block cracking. The anticipated traffic loading is 10,000,000 ESAL’s. The cost of construction is as follows: HMA $90/t of surface course and $70/t of binder course; granular base $18/t; subbase $12/t; tack coat $0.4/m2. Assume the following other costs, if you need them: CIR $14/m2; FDR with Foamed Asphalt $15/m2; crack rout and seal $2.5/m; and patching (mill 40 mm and patch 40 mm) $15/m2. If you consider a structural overlay, assume 40 mm of HMA surface course and 50 mm of binder course. Assume a discount rate of 4%.
Carry out life cycle cost analysis.
As a further exercise, try to find values of t for your approximation that keeps the error (i.e., the difference between the approximation and the real function v(t) ) less than 0.1.Hint: to help with this, ask yourself this question: where would mor..
A 30mm pipe X 460 mm rectangular duct carries air. What size square conduit is needed to transport 4m cube per sec of water at a distance of 45m and head loss of of 1.08m.
A room is filled with saturated steam at 100 degrees C. Now a 5-kgbowling ball at 25 degrees C is brought to the room. Heat istransferred to the ball from the steam, and the temperature of the
A tangent section of highway has a -1.0% grade and ends at station 0+1450and elevation 25m. It must be connected to another section of highway that has a -1% grade and that begins at station 1+345 and elevation 40m.
HJ Heinz Corporation is constructing a distribution facilityin Italy for products such as Heinz Ketchup, Jack Daniel's Sauces,HP steak sauce, and Lea & Perrins Worcestershire sauce. A15-year life is expected for the structure.
A hawk flying at 2 m/s at an altitude of 45 m accidentally drops its prey. The parabolic trajectory of the falling prey is described by the equation below until it hits the ground, where y is its height above the ground and x is its horizontal dis..
Draw A flow net. Show flow lines, flow Channels, and Equipotential lines. Using flow nets, please provide an estimate of seepage rate below the dam. Your submittal will provide the basis for an environmental impact statement regarding the construc..
Create a VBA function that will return the root of the function e-x -x = 0 using the Newton-Raphson method. The input parameter for the function should be the initial guess for the root. Turn in your code for the VBA function.
what would be the horizontal and vertical component from this acting force see diagram
A radar device is installed at a location on the roadside to measure instantaneous speeds of vehicles passing that location. The initial four vehicles' speeds are listed. Calculate the space-mean speed of these four vehicles.
A reservoir has a capacity of 2.75 million acre-ft. How many years would this supply a city of 100,000 people if evaporation is neglected. Assume a use rate of 180 gpcd.
The wall footing is used to support the column load of 12,000 lb. Determine the intensities w1 and w2 of the distributed loading acting on the base of the footing for equilibrium
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