Analysis and design of concrete pavements – Research Paper Example

Download full paperFile format: .doc, available for editing

In 2007, the Australian Society for Concrete Pavements (ASCP) was formed with the primary goal of facilitating improvements in the design, quality and construction of concrete pavement in Australia particularly through research, technology, education and information transfer (AS/NZS 4456, 2005). Modern technological innovations and advancements have significantly enhanced the design of sustainable concrete pavements for highways, parking lots and streets based on particular soil conditions, environmental demands as well as the estimated traffic loads and pavement stresses. For example, advances in computer modeling have resulted in a number of applications that have particularly offered the possibility of including various new parameters in the design of concrete pavements (Choubane and Tia, 2005).

However, the optimization of the contemporary pavement systems requires long term and fatigue resistance designs that are also cost effective and ecologically sound. In this regard, understanding the behavior and characteristics of concrete is critically vital in the design and performance of concrete paved road surfaces. Fig 1: Concrete Pavement The two main types of concrete pavements in Australia include plain jointed concrete pavements and the reinforced jointed concrete pavements (Shackel, 1990). In plain jointed concrete pavements, a sufficient number of joints are usually used to control all the locations of potential shrinkage cracks in the pavements (Austroads, 1992).

This is particularly achieved through the use of longitudinal traverse joints that are normally constructed with well designed traverse joints. In this regard, any crack on the pavement is expected to occur at the joints not in any other part of the slabs. Although jointed plain concrete pavements do not normally contain steel reinforcement, deformed steel bars may be used at the longitudinal joints and smooth steel bars at the traverse joints.

Some plain concrete pavements use dowels to minimize faulting while others rely on aggregate interlocks to transfer loads across the joints and reduce faulting. On the other hand, reinforced concrete pavements are often reinforced with steel mesh and can be either constructed based on either continuous reinforced design or jointed reinforced designs (Shackel, 1990) In jointed reinforced concrete pavements the reinforced steel are used to hold together the intermediate cracks at each of the slab while continuous reinforced concrete pavements do not have any traverse contraction joints.

References

AS/NZS 4456. (2003). Masonry Units and Segmental Pavers: Methods of Test. Perth, Australia.

AASHTO. (1993). AASHTO Guide for the Design of Pavement Structures. Washington, DC: American Association of State Highway and Transportation Officials

Austroads. (1992). Section 5 and Section 9.” Pavement Designs – A Guide to the Structural Design of Road Pavements, Sections 5 and 9. Sydney: Austroads.

Ardekani, S. & Sumitsawan, P. 2009. Effect of Pavement Type on Fuel Consumption and Emissions in City Driving. 2010 Concrete Sustainability Conference. New York: National Ready Mixed Concrete Association.

Bridge, R., Griffiths, S. (2005). The Concept of a Seamless Concrete Pavement and Bridge Deck.  Proceedings, Australian Structural Engineering Conference IE Aust, Newcastle, Australia.

Caltrans. 2010. Highway Design Manual 6th Ed. Sacramento. Auckland, CA: California Department of Transportation.

Choubane B., Tia M. (2005). Analysis and Verification of Thermal-Gradient Effects on Concrete Pavement. Journal of Transportation Engineering, ASCE, 121, 1, 75-81.

Concrete Masonry Association of Australia, 2000. Concrete Segmental Pavements Detailing Guide - T46. Sydney, Australia.

Croney, M. (2008). Design and Performance of Road Pavements’, 5th  Edition. New York: McGraw-Hill.

Hall, K. T. (2003). National Cooperative Highway Research Program., & États-Unis. (2003). Effects of subsurface drainage on performance of asphalt and concrete pavements. Washington, D.C: Transportation Research Board.

Horenstein, M. (2010). Design concepts for engineers (4th ed.). Upper Saddle River, NJ: Prentice Hall.

Lilley, A. (2001). A Handbook of Segmental Paving. London, UK: Chapman & Hall Publishers Limited.

Shackel, B & Pearson, A. (1994). Developments in the Specification of Concrete Segmental Pavers for Australian Conditions. Workshop on Conc. Block Paving, Oslo, pp.56-66.

Shackel, B. (1990). Design and Construction of Interlocking Concrete Block Pavements. Elsevier Applied Science, 2, 29-34.

Shackel, B. (1992). Computer Methods for Segmental Concrete Pavement Design. Proc. CSP Workshop, 16 ARRB Conf., Perth, Australia.

Shackel B. (2008).  An Experimental Investigation of Factors Influencing the Design of Interlocking Concrete Block Pavements in Roads. Proceedings of Australian Road Research Board Conference.

Tepfers, R. (2009). Tensile Fatigue Strength of Plain Concrete. ACI Journal, proc.76(8), Aug., 919-933.

Petersson, O. (2006). Swedish Method for the Design of Concrete Pavements. Stockholm, Sweden: Royal Inst. of Tech., Dep. of Civ. and Arch. Eng.

Wardle, L. (2010). Mechanistic Pavement Design: The Past, Present and Towards the Future. Boston, MA: Routlege.

Appendix A: Design and Construction Continuously Reinforced Concrete Pavement

Download full paperFile format: .doc, available for editing
Contact Us