What slab thickness should have been used

Assignment Help Other Engineering

Reference no: EM131142399

A four-lane northbound section of interstate has rigid pavement and was designed with an 8-inch slab, 90% reliability, a 700 lb/in² concrete modulus of rupture, a 5 million lb/in² modulus of elasticity, a 3.0 load transfer coefficient, and an overall standard deviation of 0.3. The initial PSI is 4.6 and the TSI is 2.5. The pavement was conservatively designed (assuming the upper limit of the W18 design lane load) to last 20 years, and the CBR is 25 with a drainage coefficient of 1.0.

A design mistake was made that ignored 1000 total northbound (daily) passes of trucks with 22-kip single and 30-kip tandem axles. What slab thickness should have been used?

Reference no: EM131142399

Questions Cloud

What are the relationships between these costs : What are short-run and long-run costs? What is the relationship between them?

Which cell is the most abundant in the human body : Which cell is the most abundant in the human body? Which of the following systems is the only one to have direct interactions with the other three?

Describe three effective stress-management techniques : Write 150 to 200 words describing how stress can affect you physically and mentally, and which coping strategies you may use to work through this situation. Describe three effective stress-management techniques.

Contrast the methods that organisation may take to select : Compare and contrast the methods that the organisation may take to select and establish close collaborations with a reduced number of supply sources .

What slab thickness should have been used : A design mistake was made that ignored 1000 total northbound (daily) passes of trucks with 22-kip single and 30-kip tandem axles. What slab thickness should have been used?

What is a production function : What are the alternative shapes that the relationship between input and output takes? What is the relationship between these shapes and the shape of the cost function?

Density of the traffic stream in this lane : You measure the average headway and average spacing of passing vehicles as 3.2 seconds and 165 ft, respectively. Calculate the flow, average speed, and density of the traffic stream in this lane.

How many cds and how many dvds should she purchase : How many CDs and how many DVDs should Sarah purchase if she has a fixed budget of $150 to spend on these two items? Suppose her budget for these two goods is only $80. How many CDs and how many DVDs should she purchase?

Identifying the principal resources and capabilities : Identifying the principal resources and capabilities. Assessing their strategic importance in terms of the two major determinants of imitability: transferability and replicability

User Account

All Pages