Reinforced pavements: laboratory and field experiences

Title: Reinforced pavements: laboratory and field experiences
Author(s): G. Dondi, A. Bonini, A. Simone
Paper category : conference
Book title: Fourth International RILEM Conference on Reflective Cracking in Pavements - Research in Practice
Editor(s): A. O. Abd El Halim, D. A. Taylor
and El H. H. Mohamed
Print-ISBN: 2-912143-14-4
e-ISBN: 2351580265
Publisher: RILEM Publications SARL
Publication year: 2000
Pages: 441 - 454
Total Pages: 14
Nb references: 6
Language: English

The insertion of interlayers in bituminous pavement is a technique in a developing phase which achieves positive results. In the present paper the authors shall describe the results obtained during an experimental study, based upon laboratory and in situ tests. In the first stage, some specimens were created by placing two bituminous concrete layers with different interlayers in a steel box. The evaluation of the laboratory specimens conditions and performance, after having been dynamically and statically loaded up, was carried out by means of the IRIlab index (International Roughness Index) and of the PSI index (Present Serviceability Index). These indexes, which take into account deformations and the fissured state of the specimens, represent an innovative methodology for the interpretation of the results; they also allow a better correlation to the results obtained by in situ tests. In order to validate laboratory tests, an experimental field was created in a lane of a highway by removing the upper bituminous layer. Some artificial deep cuttings were made; then interlayers of different types, similar to those employed in laboratory tests, were laid down. Finally the lane was repaved. Currently the experimentation is complete and the final results have confirmed the objective benefits which derive from enclosing geosynthetic in pavements.

Online publication: 2009-12-23
Publication type : full_text
Public price (Euros): 0.00

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