USE OF GEOTEXTILES FOR REINFORCEMENT AND STRAIN RELIEF IN ASPHALT CONCRETE

abstract

• This paper describes the three uses of geotextiles in asphaltic concrete overlays: (a) reinforcing (b) strain relief and (c) undersealing. Reflection cracking through overlays is caused by both loads and thermal contraction, and cracks may be retarded or arrested by geotextiles if the proper material properties are selected and good construction techniques are used. Prediction of crack growth is made with fracture mechanics and this is the basis of an overlay design computer program which is described herein. Fracture properties of asphaltic concrete under fatigue loading and thermal contraction conditions are presented and the way they are altered by the addition of geotextiles is illustrated. The design equations for the thickness of an overlay with a reinforcing grid are also given. Some cautionary rules of thumb, concerning the appropriate pavement conditions when geotextiles may be expected to prolong the life of an overlay and when they may not, are also given. 1989.

authors

• Lytton, Robert

published proceedings

• GEOTEXTILES AND GEOMEMBRANES

altmetric score

• 3

author list (cited authors)

• LYTTON, R. L.

citation count

• 86

complete list of authors

• LYTTON, RL

publication date

• January 1989

publisher

• Elsevier  Publisher

published in

• Geotextiles and Geomembranes  Journal

Digital Object Identifier (DOI)

• 10.1016/0266-1144(89)90004-6

start page

• 217

end page

• 237

volume

• 8

issue

• 3

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2F0266-1144%2889%2990004-6