Title: FABRIC REINFORCEMENT TO EXTEND PAVEMENT LIFE
Abstract: In Australia, there has been a movement away form bituminous flexible pavements towards Portland cement concrete for major roads, and for unsealed pavements for farm-to-market roads. The oil crisis is partly to blame, but the high cost of maintenance has helped the slight trend away from bituminous pavements. However, the bituminous flexible pavement still has many advantages over the rigid type. These advantages have been increased by improvements such as the use of fabric interlayers to guard against reflection cracking. Another alternative discussed is the use of man-made fabrics to produce a reinforced asphaltic concrete pavement. The paper shows that the relative plastic behavior of the component material may have a great effect on the life of a paement. When the plastic behavior of the asphaltic surface is greater than the base and subgrade the possible build-up of horizontal residual compressions would reduce the transient tensions and hence increase the fatigue life. In a similar way the fatigue life may be reduced when the asphaltic surfacing acts less plastically than the base and subgrade. This paper indicates that the fatigue and rutting life may be increased by the inclusion of woven fabric near the bottom of the asphaltic layer. The interaction between the fabric and the phenomena issuing from the relative plastic behavior value is also demonstrated.
Publication Year: 1983
Publication Date: 1983-01-01
Language: en
Type: article
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