Induction Healing of Porous Asphalt

Abstract

Research on the induction healing of porous asphalt is summarized. Steel wool is added to porous asphalt concrete to make it electrically conductive and suitable for induction heating. When microcracks occur in the material, an induction generator is used to heat the material to close the cracks by the high-temperature self-healing of bitumen. The electrical resistance and induction heating speed of porous asphalt concrete reinforced with steel wool are examined. Porous asphalt concrete containing steel wool is found to be electrically conductive and can be heated with induction energy. The mechanical properties of this porous asphalt are also studied. Steel wool can reinforce porous asphalt concrete by increasing its strength, particle loss (raveling) resistance, and fatigue resistance. Furthermore, the induction healing effect of this porous asphalt concrete reinforced with steel wool is evaluated. It is proved that the fatigue life of induction-healing porous asphalt can be extended significantly by the application of induction heating. It is also found that the optimal heating temperature for the best healing effect is 85°C. These findings indicate that the self-healing potential of porous asphalt concrete and the durability of porous asphalt pavement are improved by induction heating. Finally, a test section was paved on the Dutch A58 motorway with a porous asphalt layer containing steel wool. Because asphalt concrete exhibits better self-healing at higher temperatures, the future for the application of induction-healing porous asphalt concrete appears to be promising.

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References

Huurman

, Mo

L. T.

, and Woldekidan

M. F.

Porous Asphalt Ravelling in Cold Weather Conditions. Proc., 2nd International Conference on Environmentally Friendly Roads, October 2009, Warsaw, Poland.

McDaniel

R.S.

, and Thornton

W.D.

Field Evaluation of a Porous Friction Course for Noise Control. Presented at 84th Annual Meeting of the Transportation Research Board, Washington, D.C., 2005.

Larsen

L.E.

, and Bendtsen

Noise Reduction with Porous Asphalt: Costs and Perceived Effect. Proc., 9th International Conference on Asphalt Pavements, Copenhagen, Denmark, 2002.

Bolzan

P.E.

, Nicholls

J. C.

, and Huber

G. A.

Searching for Superior Performing Porous Asphalt Wearing Courses. Presented at 80th Annual Meeting of the Transportation Research Board, Washington, D.C., 2001.

Kandhal

P. S.

Design, Construction and Maintenance of Open-Graded Asphalt Friction Courses. Information Series IS 115. National Asphalt Pavement Association, Lanham, Md., 2002.

Voskuilen

J.L.M.

, and Verhoef

P. N. M.

Cause of Premature Raveling Failure of Porous Asphalt. Proc., 6th International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials, 2003, pp. 191–197.

Padmos

Over Ten Years Experience with Porous Road Surfaces. Proc., 9th International Conference on Asphalt Pavements, Copenhagen, Denmark, 2002.

Detecting Ravelling. KOAC-NPC, Apeldoorn, Netherlands. http://www.koacnpc.com/Flex/Site/Download.aspx?ID=1284. Accessed March 15, 2011.

Bazin

, and Saunier

Deformability, Fatigue, and Healing Properties of Asphalt Mixes. Proc., 2nd International Conference on the Structural Design of Asphalt Pavements, Ann Arbor, Mich., 1967, pp. 553–569.

10.

Van Dijk

, Moreaud

, Quedeville

, and Uge

The Fatigue of Bitumen and Bituminous Mixes. Proc., 3rd International Conference on the Structure Design of Pavement, London, 1972, pp. 354–366.

11.

Castro

, and Sánchez

J. A.

Fatigue and Healing of Asphalt Mixtures: Discriminate Analysis of Fatigue Curves. ASCE Journal of Transportation Engineering, Vol. 132, No. 2, 2006, pp. 168–174.

12.

Little

D.N.

, and Bhasin

Exploring Mechanisms of Healing in Asphalt Mixtures and Quantifying Its Impact. In Self-Healing Materials: An Alternative Approach to 20 Centuries of Materials Science ( van de Zwaag

, ed.), Springer Series in Materials Science, Vol. 100, Springer, Dordrecht, Netherlands, 2007, pp. 205–218.

13.

Bommavaram

R.R.

, Bhasin

, and Little

D.N.

Determining Intrinsic Healing Properties of Asphalt Binders: Role of Dynamic Shear Rheometer. In Transportation Research Record: Journal of the Transportation Research Board, No. 2126, Transportation Research Board of the National Academies, Washington, D.C., 2009, pp. 47–54.

14.

Williams

, Little

D. N.

, Lytton

R.L.

, Kim

Y.R.

, and Kim

Micro-damage Healing in Asphalt and Asphalt Concrete. Research report 7229. Texas A&M University, College Station, 2001.

15.

Lytton

R.L.

, Uzan

, Fernando

E. G.

, Roque

, Hiltunen

, and Stoffels

S.M.

Development and Validation of Performance Prediction Models and Specifications for Asphalt Binders and Mixes. Report no. SHRP-A-357. Transportation Research Board of the National Academies, Washington, D.C., 1993.

16.

Grant

T. P.

Determination of Asphalt Mixture Healing Rate Using the Superpave Indirect Tensile Test. MS thesis. University of Florida, Gainesville, 2001.

17.

Uchida

, Kurokawa

, Himeno

, and Nishizawa

Healing Characteristics of Asphalt Mixture Under High-Temperature Conditions. Proc., 9th International Conference on Asphalt Pavements, Copenhagen, Denmark, 2002.

18.

Kim

, and Roque

Evaluation of Healing Property of Asphalt Mixtures. In Transportation Research Record: Journal of the Transportation Research Board, No. 1970, Transportation Research Board of the National Academies, Washington, D.C., 2006, pp. 84–91.

19.

Liu

, Schlangen

, van de Ven

, and García

Induction Heating of Electrically Conductive Porous Asphalt Concrete. Construction and Building Materials, Vol. 24, 2010, pp. 1207–1213.

20.

Liu

, García

, Schlangen

, and van de Ven

Induction Healing of Asphalt Mastic and Porous Asphalt Concrete. Construction and Building Materials, Vol. 25, 2011, pp. 3746–3752.

21.

Liu

, Schlangen

, van de Ven

, van Bochove

, and van Montfort

Evaluation of the Induction Healing Effect of Porous Asphalt Concrete Through Four Point Bending Fatigue Test. Construction and Building Materials, Vol. 29, 2012, pp. 403–409.

22.

Miyasaka

, Watanabe

, Jojima

, Aida

, Sumita

, and Ishikawa

Electrical Conductivity of Carbon–Polymer Composites as a Function of Carbon Content. Journal of Materials Science, Vol. 17, No. 6, 1982, pp. 1610–1616.

23.

Reboul

J. P.

Carbon Black-Polymer Composites. Marcel Dekker, New York, 1982, pp. 80–120.