Course Title: Design pavements

Part B: Course Detail

Teaching Period: Term2 2013

Course Code: CIVE5694

Course Title: Design pavements

School: 130T Vocational Engineering

Campus: City Campus

Program: C6093 - Advanced Diploma of Engineering Design

Course Contact: Program Manager

Course Contact Phone: +61 3 9925 4468

Course Contact Email: engineering-tafe@rmit.edu.au


Name and Contact Details of All Other Relevant Staff

Teacher: Muhammad Aftabuzzaman
Phone: + (61 3) 9925 ......
Email: muhammad.aftabuzzaman@rmit.edu.au

Nominal Hours: 20

Regardless of the mode of delivery, represent a guide to the relative teaching time and student effort required to successfully achieve a particular competency/module. This may include not only scheduled classes or workplace visits but also the amount of effort required to undertake, evaluate and complete all assessment requirements, including any non-classroom activities.

Pre-requisites and Co-requisites

EAC120B Test and evaluate soils
EDX010B Communicate and apply standard industry procedures and policies in an engineering design office

Course Description

This unit of competency deals with the skills and knowledge required to determine and select the most economical pavement thickness and composition to provide a satisfactory level of service for conventional road traffic, in accordance with the Austroads Pavement Design Guide methodology and the application of local research and investigations.

 


National Codes, Titles, Elements and Performance Criteria

National Element Code & Title:

EAC070B Design pavements

Element:

1. Apply understanding of the various types of flexible and rigid pavements.

Performance Criteria:

1.1 The evolution of pavement types and design procedures is understood and informs design decisions.
1.2 The types and functions or road pavement component layers are understood and informs design decisions.
1.3 Basic considerations affecting flexible and rigid pavement designs is understood and informs design decisions.

Element:

10. Review pavement design software

Performance Criteria:

10.1 Suitable computer software packages that can be used for pavement design are identified.

Element:

2. Apply knowledge of pavement materials and their characteristics.

Performance Criteria:

2.1 The pavement material categories and material types are understood and inform design decisions.
2.2 The behaviour characteristics under traffic loads for each material category are understood and inform design decisions.
2.3 The types of distress modes the material types experience under traffic loads are understood and inform design decisions.
2.4 Poissson’s ratio, modulus and flexural compressive strengths of pavement materials are understood and inform design decisions.
2.5 The various methods of soil stabilisation are understood and inform design decisions

Element:

3. Estimate the design California Bearing Ratio (CBR)

Performance Criteria:

3.1 The methods of estimating sub-grade support values are understood and used appropriately.
3.2 The design CBR is determined given the climatic condition, soil type, drainage condition, and location and CBR results on the soil of the sub-grade design units.
3.3 The values of Poisson’s ratio and modulus of pavement materials are extracted from a pavement design manual.

Element:

4. Compute the design traffic value for a pavement

Performance Criteria:

4.1 The design traffic for any category and material type pavement is
determined from information on the design period, traffic growth
and any level of traffic data.

Element:

5. Determine the total thickness of a new flexible pavement

Performance Criteria:

5.1 From data on the design parameters of a nominated length of sub-grade design unit, the empirical method is correctly used to determine the total thickness of an unbound granular material with less than 25 mm thick bituminous or asphalt surfacing.
5.2 The mechanistic method is used correctly to determine the total thickness of a multi-layered flexible pavement comprising cemented and granular materials and more than 25 mm asphalt surfacing.
5.3 Example design charts are used appropriately to determine the total thickness of any flexible pavement.
5.4 A written report is prepared containing the design procedure and calculations and sketches of the pavement showing sub-grade and fully dimensioned layers.

Element:

6. Determine the total thickness of a rigid pavement

Performance Criteria:

6.1 From data on the design parameters for a nominated length of sub-grade design unit, the total thickness of a concrete pavement is correctly determined.
6.2 A written report is prepared containing the design procedure and calculations and sketches of the pavement showing sub-grade and fully dimensioned layers

Element:

7. Determine the appropriate thickness of an asphalt or granular layer to improve the service performance of an existing pavement.

Performance Criteria:

7.1 The procedure that is required to correctly diagnose the service performance of an existing flexible pavement is understood and informs design processes.
7.2 The required overlay thickness is calculated.
7.3 A written report is prepared containing the design procedure and calculations and sketches of the pavement cross section with the existing and new overlay layers indicated.

Element:

8. Perform an economic comparison of alternative pavement types

Performance Criteria:

8.1 From data on the locality and a nominated length of sub-grade design unit with three alternative pavement design types designed according to elements 4 and 5 above, the associated road costs are acquired from the industry and an economic comparison performed using a pavement design manual.

Element:

9. Determine pavement performance and condition.

Performance Criteria:

9.1 The methods used for establishing functional and structural performance curves is understood as well as how they can be used for observing road pavement conditions.
9.2 The various measurement methods used for monitoring and evaluating pavement condition can be described.


Learning Outcomes


.


Details of Learning Activities

This course will provide skills and knowledge for surveying of small site. Students will participate in individual and team work related problem solving engineering activities. Course will accomplished by classes and field participation, tutorials, homework, group assignments and examination.
• Presentation and video on Terminology related to Australian Standard Road and Traffic Engineering Terms
• Presentation and video on Sub-grade and pavement materials:- Unbound granular material
• Presentation and video on Sub-grade and pavement materials:- Unbound granular- Soil
• Presentation and video on Sub-grade and pavement materials:- Unbound granular ( Cemented and Asphalt Material)
• Example on calculation of design traffic
• Example on calculation of flexible pavement design using –empirical procedure
• Quiz 1 on week 1 to 4.
• Example on calculation of flexible pavement design using –Mechanistic Procedure
• Example on calculation of rigid pavement design
• Example on overlay design and comparison of design
 

Engineering employment requires the capacity to work effectively in teams, to communicate effectively in both oral and writing and to learn effectively. In order to prepare students for employment as graduates they will be provided a quality assured teaching and learning environment which is conductive to the development of adult learning. Adult learning is characterised by the students accepting responsibility for their own learning and actively participating in the learning process as individuals and as contributors to the teams. Adult learning is the hallmark of a professional. The specific responsibilities as adult learners in respect of this subject are:
. to be aware of and to observe the regulations related to plagiarism
. to submit (on time) all work for assessment as required
. to complete all pre-reading and preparatory work prior to the class for which it will be used
. to effectively use the academic staff resources provided (consultation time, tutors, e- mail etc)
. to participate as an effective and honest member of a learning team
. to contribute effectively to a group of peers in a climate of mutual respect and to question each other and the academic staff when uncertain
 

Effective Communication: Presentation of subject material in the most up to date manner. Assessment by way of exams and laboratory reports
Creative: Planning & organising activities Collecting, analysing & organising information.
Ethical responsibilities: Introducing Engineers Australia Code of Ethics Observing legislation and statutory requirements. Identifying plagiarism attempts
Team work Appropriate personnel to be consulted to ensure the work is co-ordinated effectively with others involved on the module activities Team approach in collating and evaluating results of research or testing procedures undertaken
Long-life learners: Encourage self-study through curiosity Some percentage of assessment will test these skills
Professional Attitudes Presenting professional image Communication, class participation and performance.


Teaching Schedule

Session/Date Topic Resources and Activities Element/Performance criteria Assessment Task
1 Terminology related to Australian Standard Road and Traffic Engineering Terms

Road classes, elements, and components:- Flexible pavement Rigid pavement
• Urban roads – cross section, drainage
• Rural roads – cross section, drainage
• Definition of road classes
 

Class notes will be provided

Presentation and video on Terminology related to Australian Standard Road and Traffic Engineering Terms
 

1.1 The evolution of pavement types and design procedures is understood and informs design decisions.
1.2 The types and functions or road pavement component layers are understood and informs design decisions.
1.3 Basic considerations affecting flexible and rigid pavement designs is understood and informs design decisions
 
 
2 Sub-grade and pavement materials:- Unbound granular
Characteristics Material types for each category

Behaviour characteristics for each category under load Distress mode for each category under load


Input design parameters applicable to each load Modulus Poisson’s ratio.

Flexural strength and compressive strength

Performance criteria for each category
 

Class notes will be provided

Presentation and video on Sub-grade and pavement materials:- Unbound granular

 

2.1 The pavement material categories and material types are understood and inform design decisions.
2.2 The behaviour characteristics under traffic loads for each material category are understood and inform design decisions.
2.3 The types of distress modes the material types experience under traffic loads are understood and inform design decisions.
2.4 Poisson’s ratio, modulus and flexural compressive strengths of pavement materials are understood and inform design decisions.
 
 
3

Sub-grade and pavement materials:- Unbound granular
• Strength evaluation of the supporting sub-grade
• Design moisture content
• California Bearing Ration (CBR) – field and laboratory testing
• Estimated equilibrium CBR
• Design CBR – new road reconstruction and re-sheeting
• Modulus of sub-grade reaction
 

 

Sub-grade and pavement materials:- Cemented and Asphalt

Class notes will be provided

Presentation and video on Sub-grade and pavement materials:- Unbound granular- Soil
 

 

 

 

 

 

 

 

 

 

Class notes will be2.2 The behaviour characteristics under traffic loads for each material category are understood and inform design decisions.
 

2.5 The various methods of soil stabilisation are understood and
inform design decisions
3.1 The methods of estimating sub-grade support values are understood and used appropriately
3.2 The design CBR is determined given the climatic condition, soil type, drainage condition, and location and CBR results on the soil of the sub-grade design units.
3.3 The values of Poisson’s ratio and modulus of pavement
materials are extracted from a pavement design manual
 

 

 

2.2 The behaviour characteristics under traffic loads for each material category are understood and inform design decisions.
2.3 The types of distress modes the material types experience under traffic loads are understood and inform design decisions.
2.4 Poisson’s ratio, modulus and flexural compressive strengths of pavement materials are understood and inform design decisions.

 
4 Sub-grade and pavement materials-Cement concrete and Compute the design traffic value for a pavement

Standard axle loads
Number of equivalent standard axles (ESA)
Design lanes
Design period
Traffic growth
Calculation of design traffic for flexible pavements containing one
or more bound layers
Calculation of design traffic for flexible pavements consisting of
unbound granular materials and overlays for flexible pavement
Calculation of design traffic for rigid pavement.
Modified design traffic – initial and terminal roughness
 

Class notes will be provided

Presentation and video on Sub-grade and pavement materials:- Unbound granular ( Cemented and Asphalt Material)


Example on calculation of design traffic
 

2.2 The behaviour characteristics under traffic loads for each material category are understood and inform design decisions.
2.3 The types of distress modes the material types experience under traffic loads are understood and inform design decisions.
2.4 Poisson’s ratio, modulus and flexural compressive strengths of pavement materials are understood and inform design decisions.

4.1 The design traffic for any category and material type pavement is determined from information on the design period, traffic growth and any level of traffic data.
 

 
5 Structural design:- New flexible pavement -Empirical procedure

Production and use of design charts
 

Example on calculation of flexible pavement design using –empirical procedure.


Quiz 1 on week 1 to 4.
 

5.1 From data on the design parameters of a nominated length of sub-grade design unit, the empirical method is correctly used to determine the total thickness of an unbound granular material with less than 25 mm thick bituminous or asphalt surfacing. Quiz 1 20%
6 Structural design:- New flexible pavement Mechanistic procedure Example on calculation of flexible pavement design using –Mechanistic Procedure 5.2 The mechanistic method is used correctly to determine the total
thickness of a multi-layered flexible pavement comprising
cemented and granular materials and more than 25 mm asphalt
surfacing.
5.3 Example design charts are used appropriately to determine the
total thickness of any flexible pavement.
5.4 A written report is prepared containing the design procedure and
calculations and sketches of the pavement showing sub-grade
and fully dimensioned layers.

7.1 The procedure that is required to correctly diagnose the service
performance of an existing flexible pavement is understood and
informs design processes.
7.2 The required overlay thickness is calculated.
7.3 A written report is prepared containing the design procedure and
calculations and sketches of the pavement cross section with the
existing and new overlay layers indicated
 

 
7 Structural design:- Rigid pavement
Pavement elements
• Pavement types – concrete, sub-grades, sub bases
• Thickness design
• Design input factors
• Strength of sub-grade/sub base
• Concrete strength
• Fatigue resistance
• Traffic estimation
• Load safety factors
• Steel reinforcement
• Joints
• Joint sealants
• Joint layout
 
Example on calculation of rigid pavement design 6.1 From data on the design parameters for a nominated length of sub-grade design unit, the total thickness of a concrete
pavement is correctly determined.

6.2 A written report is prepared containing the design procedure and calculations and sketches of the pavement showing sub-grade and fully dimensioned layers.
 

Report 1due : Structural design:- New flexible pavement Mechanistic procedure and Empirical procedure
15%
 
8 Structural design:- Overlays and
Comparison of designs

Overlays
Pavement testing
Deflection testing
Selection of test site
Test modes
Measurement of pavement temperature
Pavement evaluation
Test section
Characteristic site temperature
Adjustment characteristic deflection and curvature
Design traffic
Design deflection and curvature
Determination of pavement needs
Selection of thickness – granular overlay, asphalt overlay
Characteristic deflection exceeds the design deflection
Characteristic deflection less than the design deflection
Adjustment of overlay thickness for locality temperature

Method for economic comparison
Construction costs
Maintenance costs
Salvage value
Real discount rate analysis period
Road user costs
 

Example on overlay design and comparison of design 7.1 The procedure that is required to correctly diagnose the service
performance of an existing flexible pavement is understood and
informs design processes.
7.2 The required overlay thickness is calculated.
7.3 A written report is prepared containing the design procedure and
calculations and sketches of the pavement cross section with the
existing and new overlay layers indicated
8.1 From data on the locality and a nominated length of sub-grade
design unit with three alternative pavement design types
designed according to elements 4 and 5 above, the associated
road costs are acquired from the industry and an economic
comparison performed using a pavement design manual
9.1 The methods used for establishing functional and structural
performance curves is understood as well as how they can be
used for observing road pavement conditions.
9.2 The various measurement methods used for monitoring and
evaluating pavement condition can be described.
 
Report 2due : Structural design:- Rigid pavement
Pavement elements
15%
 
9 test      


Learning Resources

Prescribed Texts

Austroad Manual on Pavement design and notes on blackboard


References


Other Resources


Overview of Assessment

Assessment are conducted in both theoretical and practical aspects of the course according to the performance criteria set out in the National Training Package. Students are required to undertake summative assessments that bring together knowledge and skills. To successfully complete this course you will be required to demonstrate competency in each assessment tasks detailed under the Assessment Task Section.

Your assessment for this course will be marked using the following table:

NYC (<50%) Not Yet Competent

CAG (50-59%) Competent - Pass

CC (60-69%) Competent - Credit

CDI (70-79%) Competent - Distinction

CHD (80-100%) Competent - High Distinction


Assessment Tasks

The assessment is conducted in both theoretical and practical aspects of the course according to the performance criteria set in the National Training Package.
Assessment may incorporate a variety of methods including written/oral activities and demonstration of practical skills to the relevant industry standards.
Participants are advised that they are likely to be asked to personally demonstrate their assessment activities to their teacher/assessor.
Feedback will be provided throughout the course. To successfully complete this course you will be required to demonstrate competency in each assessment task detailed under Assessment Tasks section of Course Guide Part B.
 

Quiz on Sub-grade and pavement materials 20% weightage
Report 1: Structural design:- New flexible pavement Mechanistic procedure and Empirical procedure 15% weightage
Report 2: Structural design:- Rigid pavement elements 15% weightage
Test1: Covers contents from week 4- 8. 50% weightage
 

Student has also to show an understanding of Occupational Health and Safety to an extent indicated by the following aspects:
• basic legal requirements covering occupational health and safety in the workplace
• the requirements for personal safety in the workplace
• identifying potential workplace hazards and suggested measures for accident prevention
• working safely with electrical tools or equipment

Assessment requirements also include:

- attendance and satisfactory completion of prescribed practical exercises ,
- Evidence of participation in and satisfactory completion of work simulation projects.

-satisfactory completion of class assignment work
-timely submission and standard presentation for all assessment material / documentation

Students should be informed with the special consideration policy available at -

http://www.rmit.edu.au/browse;ID=qkssnx1c5r0y (unresolved)


Assessment Matrix

Assessment Task Element of competencies Weighting
Quiz 1.1,1.2,1.3,2.1,2.2,2.3,2.4,2.5,3.1,3.2,3.3 20%
Report 1 4.1,5.1,5.2,5.3,5.4,7.1,7.2,7.3 15%
Report 2 6.1,6.2 15%
Test 4.1,5.1,5.2,5.3,5.4,7.1,7.2,7.3, 6.1,6.2,7.1,7.2,7.3,8.1,9.1,9.2 50%

Other Information

* Student directed hours involve completing activities such as reading online resources, assignments, report for practical work, and individual student-teacher course-related consultation.

Study and learning Support:

Study and Learning Centre (SLC) provides free learning and academic development advice to all RMIT students.
Services offered by SLC to support numeracy and literacy skills of the students are:

assignment writing, thesis writing and study skills advice
maths and science developmental support and advice
English language development

Please Refer http://www.rmit.edu.au/studyandlearningcentre to find more information about Study and learning Support

Disability Liaison Unit:

Students with disability or long-term medical condition should contact Disability Liaison Unit to seek advice and support to
complete their studies.

Please Refer http://www.rmit.edu.au/disability to find more information about services offered by Disability Liaison Unit

Late submission:

Students requiring extensions for 7 calendar days or less (from the original due date) must complete and lodge an Application
for Extension of Submittable Work (7 Calendar Days or less) form and lodge it with the Senior Educator.
The application must be lodged no later than one working day before the official due date. The student will be notified within
no more than 2 working days of the date of lodgement as to whether the extension has been granted.

Students seeking an extension of more than 7 calendar days (from the original due date) must lodge an Application for Special
Consideration form under the provisions of the Special Consideration Policy, preferably prior to, but no later than 2 working days
after the official due date.

Assignments submitted late without approval of an extension will not be accepted or marked.


Special consideration:

Please Refer http://www.rmit.edu.au/browse;ID=riderwtscifm to find more information about special consideration


PLAGIARISM:
Plagiarism may occur in oral or written presentations. Plagiarism is the presentation of another person’s work, idea or creation as one’s own; without appropriate referencing. Plagiarism is not acceptable. The use of another person’s work or ideas must be acknowledged. Failure to do so may result in charges of academic misconduct, which may result in cancellation of results and exclusion from your course.
Please Refer: www.rmit.edu.au/academicintegrity to find more information about plagiarism


Other Information:

All email communications will be sent to your RMIT email address and you must regularly check your RMIT emails.

Course Overview: Access Course Overview