A road can be paved with either asphalt or concrete. Concrete costs $15,000/km and lasts 20 years. What is the maximum that should be spent on asphalt if it only lasts 10 years? Annual maintenance costs for both pavements are $500/km. MARR = 12%. Demonstrate through real life examples a bridge management software you know.

A road can be paved with either asphalt or concrete. Concrete costs $15,000/km and lasts 20 years. What is the maximum that should be spent on asphalt if it only lasts 10 years? Annual maintenance costs for both pavements are $500/km. MARR = 12%. Demonstrate through real life examples a bridge management software you know.

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter18: Life-cycle Costing

Section: Chapter Questions

Problem 13RQ

See similar textbooks

Similar questions

A proposed concrete pavement has a general dimension of 10 cm thick, 3 m wide, and 10 m long.a. Determine the quantity of cement in bags (40kg), sand, and gravel in cubic meters requiredusing a class “B” mixture.b. If it cost P259.00 per bag (40kg) of cement, P1,300.00/m3 of sand, and P1,500.00/m3 of gravel,what is the total cost?
SHOW COMPLETE SOLUTION 5.A concrete pavement on a street would cost P 2M and would lasts for 3 years. Minor maintenance cost is P 50,000 per year. At the end of each 3 years, P 100,000 would be spent to remove the old surface before P 1M is spent again to lay a new surface. Find the capitalized cost of the pavement at 6%.
Q1) If the traffic using the pavement grows at an annual rate of 4 present ,determine the design ESAL for 20 years, if ESAL for one year =78900?
A pavement designer has arrived at a design traffic of 100 million standard axles for a newly developing national highway as per IRC:37 guidelines using the following data: design life = 15 years, commercial vehicle count before pavement construction = 4500 vehicles/day, annual traffic growth rate = 8%. The vehicle damage factor used in the calculation was A B 1.53 2.24 с 3.66 D 4.14
A concrete road 15 meters wide, 5 kilometers long, is designed with a thickness as shown in the following cross section. Specifying class "A" concrete, determine the quantity of 40 kg. cement, sand and gravel required. If there is no available 40 kg. cement, how many bags at 50 kg. would be needed instead?
Q#: Draw a Schematic diagram of the road cross section showing various structural elements/layers. Discuss each layer of materials in terms of compaction requirement. Why do we use high quality materials at the top but the quality decline as we go down in pavement layers? Explain?
3. You have been asked to design the pavement for an access highway to a major truck terminal. The design daily truck traffic consists of the following: 80 single axles at 22,500 lb each, 570 tandem axles at 25,000 lb each, 50 tandem axles at 39,000 lb each, and 80 triple axles at 48,050 lb each. The highway is to be designed with rigid pavement having a modulus of rupture of 600 lb/in? and a modulus of elasticity of 5 million lb/in. The reliability is to be 95%, the overall standard deviation is 0.4, the drainage coefficient is 0.9, APSI is 1.7 (with a TSI of 2.5). and the load transfer coefficient is 3.2. The modulus of subgrade reaction is 200 lb/in'. If a 20-year design life is to be used, determine the required slab thickness.
The following data pertains to the number of commercial vehicles per day for the design of a flexible pavement for a national highway as per IRC:37-1984: en Type of commercial vehicles Two axle trucks Tandem axle trucks Number of vehicle per day considering the number of lanes 2000 200 SE Vehicle Damage Factor 5 leum 6 ich Assuming a traffic growth factor of 7.5% per annum for both the types of vehicles, the cumulative number of standard axle load repetitions (in million) for a design life of ten years is
An asphalt plant can produce 300 tph. A project requires paving individual 10-ft lanes with a 12 in. lift averaging 115 lb/sy-in. What average paver speed will match the plant production? How many 20-ton dump trucks will be required if the total hauling cycle time is 40 min?
Q. 4 a) Why should the effective structural capacity of an existing pavement earmarked for rehabilitation to extend its service life be evaluated? b) The following expression is associated with the use of the Falling Weight Deflectometer (FWD) on pavements earmarked for rehabilitation. 1.5pa d, = Mg MR %3D E, i. What is the structural transformation required to make the use of the above expression possible? Which parameters in the expression relate to the transformation? I1. Identify the parameters in the expression which are obtained from the FWD test and briefly III. describe how the setup of the test enables those parameters to be obtained. [You may use any relevant expression(s) or equation(s) to support your explanation.]
13.9. From past records of highway construction and maintenance costs, a state highway de- partment determines the following cost relationships for two-lane bituminous high- ways within the state: c(x) = 0.1.x20 Cm(x) = 3.0-¹ X where the equations hold for (0.5 ≤ x ≤ 10.0) and where x= pavement thickness (inches); c(x)= annualized construction cost (millions of dollars per mile per year); and C(x)= annual maintenance cost (millions of dollars per mile per year). (a) In words, describe the basic tradeoff decision that the highway department must make. (b) Determine the optimal pavement thickness, justifying the type of point found. (c) If pavement thickness can be specified only in whole inches, what is the best pave- ment thickness, considering normal variance in pavement thickness caused by field construction conditions? How sensitive is the optimal cost to small changes in thickness?
Design is required for a new pavement to be constructed in 2010. The annual average daily traffic for commercial vehicles on the opening day will be 2000. Growth rate = 4% Design Life = 20 years Design is required for a new pavement to be constructed in 2010. The annual average daily traffic for commercial vehicles on the opening day will be 2000. Growth rate = 4% Design Life = 20 years Solve for the design traffic in msa