What are the parameters in designingflexible pavements? *Your answerQ1: What is the estimated SN of thedata given? (1 Decimal point) *Your answer 1. Using the design chart below. Estimate the SN if W18=10x10^6, R=90%, So=0.35, Mr-10000Psi, ΔPSI=3.Use the chart below.TLOverallstandarddeviation, S.TLDesign serviceability loss, APSI50105.099.90.2991.00.40.6900.50.50.11.50.052.0807060502.53.09 87 6|5 4 31Eхample:6.5 5.5 4.5 3.52.51.5W18 = 5 x 106Design structural number, SNR = 95%S, = 0.35MR = 5000 Ib/in?APSI = 1.9Solution: SN = 5.0Figure 4.5 Design chart for flexible pavements based on the use of mean values for each input.

Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Answered: What are the parameters in designing…

Engineering

Civil Engineering

What are the parameters in designing flexible pavements? *

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Deep strength stabilized based is one of the pavement type listed in ATJ5/85 (2013). What does it…

Q: Explain the shape of vma vs asphalt content curve.Also describe dry vma and wet vma

A: The objective of this study is to evaluate the effects of aggregate shape on volumetric properties…

Q: Characteristics of concrete (rigid) pavement (Select two) Please select all applicable answers.…

A: There are lots of characteristics of rigid pavement

Q: Comparing Rigid and Flexible Airport Pavement .

A: First we discuss about flexible and rigid Airport pavement difference and then structure for both…

Q: A rigid pavement is being designed with the same parameters as used in Problem 4.5. The modulus of…

Q: Determine the downwind concentration (ug/m^3) of PM 800 m from a rural ground level source if…

Q: The AASHTO present serviceability index (PSI) correlates the PSR to actual pavement performance in…

A: The original AASHO Road Test PSR serves as the foundation for the current serviceability index…

Q: Elaborate restoration process of pavement rehabilitation techniques and suggest the suitability of…

Q: What are the different functions of flexible pavement components?

A: The different function of a flexible pavement are: Subgrade Sub-Base course Base Course Prime Coat…

Q: One of the unbound pavement layer road base materials is “Dry-bound Macadam”. When is this material…

A: Traditionally, a covering of stone that is approximately one size and has spaces covered with such a…

Q: A flexible pavement section is designed using a CBR of 20 for the subgrade. During construction it…

A: Original pavement section: 8 inches HMA (Hot Mix Asphalt) over 12 inches crushed aggregate base over…

Q: B. A rigid pavement with a 10-inch slab thickness, 90 percent reliability, E. 4 million lb/in?, 600…

A: Given data - Slab thickness = 10inch Reliability = 90% Ec = 4 million lb/in2 Modulus of subgrade…

Q: Q2: Select one for each of the following: 1. Tire pressure affects the: a) pavement thickness b)…

A: 1. Answer:- quality of surface course (option b) Explaination:- Tire pressure affects the quality…

Q: Question 3: A rigid pavement is designed with an 11-inch slab thickness, 95% reliability, E,…

Q: Compare flexible and rigid pavement construction for a new highway.

Q: B. A rigid pavement with a 10-inch slab thickness, 90 percent reliability, E. = 4 million lb/in?,…

A: Given: The thickness of slab (D) is 10 in. The reliability is 90%. The value of Ec is 4 x 106…

Q: A rigid pavement is to be used to carry a wheel load of 54.04 kN. Enough dowels will be used across…

A: Load(W)=54.04kN Strength of concrete (f)=1.52MPa

Q: The following figure shows concrete pavement with the layer thickness and elastic modulus as…

A: Mr=650 Psiload transfer coefficient =3.2Serviceability loss= 4.5 to 2.5drainage coefficient =0.91080…

Q: . Say what is the main purpose of the pavement or pavement layers, and then draw the flexible…

A: Pavements are of two types: a) Flexible Pavements b) Rigid Pavements

Q: rigid pavement on a new interstate with 3 lanes i ach direction has been conservatively designed ith…

A: According to given data A rigid pavement on a new interstate with 3 lanes in each direction has…

Q: What are the characteristics should soil have to pavement

A: chracterstics should soil have to pavement applications-1.The dirt subgrade ought to stay stable in…

Q: Explain the following rigid pavement distresses with the aid of sketches: i. Fatigue cracking…

A: i. Fatigue cracking (bottom - up) : Warping ... due to daily variation of temperature . If the…

Q: Describe the basic types of highway concrete pavements and give the conditions under which each type…

A: Pavements are in direct contact with traffic and also have various applications. It can be…

Q: 1- What are the two main criteria of pavement failure in mechanistic-experimental design approach?…

A: The given question has asked two main criteria of pavement failure in M-E design approach. The…

Q: Failure of Flexible Pavements, their causes and repair

A: Pavement : Pavement, in civil engineering, is the long-lasting surfacing of a road, airstrip, or…

Q: Which is better in terms of maintenance and usability flexible pavement? concrete pavement? concrete…

A: Solution: Maintainance: Concrete pavements are considered to be the most economical in terms of…

Q: Mechanistic design procedure is based on the assumption that a pavement can be modelled as…

A: Solution Pavements can be designed as Flexible and rigid. In the analysis of Flexible pavements,…

Q: As a materials engineer working for a highway department, what standard PG asphalt binder grade…

A: The condition that high/low-temperature grade of pavement should satisfy: High temperature Grade…

Q: please help with transportation problem. please make sure it is correct. Will thumbs up if correct.

A: Step 1:Step 2:Step 3:

Q: OWhat are the causes of pavement distresses, explain?

A: Type of distresses and its causes in the pavement:

Q: root causes and remedial measures

Q: Q#1: (a) Explain the working mechanism of Flexible pavements. (b) What are the main factors that the…

A: Flexible pavements: Flexible pavements are pavements with the bitumen surface on the top layer. The…

Q: Q, Discuss the following terms briefly: a, Emulsion breaking and Cutback curing, b, Water bound and…

A: A) Emulsion breaking and cutback curing 1) During the material production process of emulsion…

Q: Q2: Select one for each of the following: 1. Tire pressure affects the: a) pavement thickness b)…

A: 1) Tire pressure affects the quality of surface course. When tire pressure is low,a lot of surface…

Q: The following figure shows concrete pavement with the layer thickness and elastic modulus as…

A: Mr=650 Psiload transfer coefficient =3.2Serviceability loss= 4.5 to 2.5drainage coefficient =0.91080…

Concept explainers

Pavement Management

Pavement management is the process of planning the maintenance and repair of a roadway network or other paved infrastructure to improve road conditions throughout the network. It is also used on runways and airports. Every highway superintendent undertakes walkway management. Traffic management includes the cost of living cycles in a systematic way of repairing minor and major roads and reconstruction projects. The needs of the entire network and budget estimates are considered before the projects are undertaken, as the cost of data collection can change significantly. Pavement management incorporates many of the features and functions required to maintain the quality of the paved material as well as to ensure that the entire road network can sustain itself at the required levels. Although pedestrian management involves the life cycle of commuting from planning to maintenance of any transport infrastructure, road asset management, and road maintenance planning is primarily aimed at road infrastructure.

Question

What are the parameters in designing
flexible pavements? *
Your answer
Q1: What is the estimated SN of the
data given? (1 Decimal point) *
Your answer

1. Using the design chart below. Estimate the SN if W18=10x10^6, R=90%, So=0.35, Mr-
10000Psi, ΔPSI=3.
Use the chart below.
TL
Overall
standard
deviation, S.
TL
Design serviceability loss, APSI
50
10
5.0
99.9
0.2
99
1.0
0.4
0.6
90
0.5
0.5
0.1
1.5
0.05
2.0
80
70
60
50
2.5
3.0
9 87 6|5 4 3
1
Eхample:
6.5 5.5 4.5 3.5
2.5
1.5
W18 = 5 x 106
Design structural number, SN
R = 95%
S, = 0.35
MR = 5000 Ib/in?
APSI = 1.9
Solution: SN = 5.0
Figure 4.5 Design chart for flexible pavements based on the use of mean values for each input.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1 Solution:-

VIEW

Step 2 Solution:-

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

An agency uses the following formula to determine pavement condition rating, PCR = 99.3 5.51 (5.0-ROUGH) 1.59 LNALL 0.221 AVGOUT 0.0306 LONG where we have the following. ROUGH = roughness measured by present serviceability rating (PSR), scale of 0 to 5 LNALL = natural logarithm of alligator cracking, ft per mile AVGOUT = outer wheel path rutting (all locations averaged), 0.01 inch LONG = longitudinal cracking, ft per mile TRAN = transverse cracking, number of cracks per mile And, present serviceability rating is determined as the following. PSR = 5e-0.0051118 IRI-0.0016027 A pavement section has the following distress data. IRI = 106 in./mi Alligator cracking 110 ft/mi Average rutting = 0.20 in. Longitudinal cracks = 130 ft/mi Transverse cracks = 12/mi Determine the current PCR for this section. PCR = 0.531 TRAN, Now, assume a new roughness measurement is expected soon. When PCR falls below 60, the section will be scheduled for rehabilitation. Determine the new IRI value (in in./mi)…
As a materials engineer working for a highway department, what standard PG asphalt binder grade would you specify for each of the conditions show in the table.
What are the common distresses of a flexible pavement and a rigid pavement?
1. During the AASHO road test, ONLY flexible pavements were constructed and tested.a. Trueb. False2. The AASHO present serviceability rating (PSR) was considered an objective quantity used to establish the performance of highway pavement in terms of applied traffic.a. Trueb. False3. The AASHTO present serviceability index (PSI) correlates the PSR to actual pavement performance in terms of applied traffic, and select distresses.a. Trueb. False4. There is only one AASHTO PSI equation that applies to both flexible and rigid pavements.a. Trueb. False5. The AASHTO PSI scale ranges from:a. 0-5b. 0-10c. 0-100d. None of the above
3- What is meant by JRCP in rigid pavements? Explain its characteristics.
4- Describe the characteristics and functions of the top layer in a pavement system.
Discuss the pros and cons of JPCP versus JRCP. What is meant by the mechanistic-empirical method of pavement design? Is it possible to develop a wholly mechanistic method of pavement design? Why?
Draw the asphalt pavement design process.
B. A rigid pavement with a 10-inch slab thickness, 90 percent reliability, E. = 4 million lb/in², 600 lb/in² modulus of rupture, 150 lb/in³ modulus of subgrade reaction, a 2.8 load transfer coefficient, initial PSI of 4.8, final PSI of 2.5, overall standard deviation of 0.35, and a drainage coefficient of 0.8 is designed. The pavement's design life is 20 years. The three-lane road is built for vehicles with one 20,000-pound single axle, one 26,000-pound tandem axle, and one 34,000-pound triple axle. Calculate the projected daily truck traffic on the three lanes.
Explain with sketches, the basis of Austroads mechanistic pavement thickness design method (i.e. what theories and assumptions are these methods based on). What is the major difference between the Austroads mechanistic-empirical (CIRCLY) design method and other mechanistic-empirical design methods?
Please help us in this sample problems thank you