Pavement Rehabilitation through Recycling with the Addition of Portland Cement on Highway SP-351

This paper describes a successful case of a road pavement rehabilitation with the reclamation of the materials from the original pavement structure (hot rolled asphalt over a granular base) with the addition of Portland cement and crushed stone. The pavement recycling operation was performed on a single lane Highway SP-351, between the cities of Bebedouro and Palmares Paulista in the State of Sao Paulo, Brazil, on a total extension of 21,916 Km. A total width of 7.0 m of the two traffic lanes was recycled to a depth of 0,18 m. A total volume of 27.614,16 m of recycled material was processed. The quality of the pavement recycling intervention is evident because of the results acquired by the quality control system performed throughout the field works. The methodology used for the technological control system, the test results obtained from the recycled materials’ physical properties and the measured recycled pavement structural deformations are summarized in this paper and analyzed for the sake of evaluating the likely service life of the highway. The pavement recycling activity, because of its complex nature, requires technological control procedures. This pavement recycling intervention was performed according to a pavement rehabilitation program presently in effect for the highway network under the responsibility of “Concessionaria de Rodovias TEBE”. The design solution adopted by “TEBE” to rehabilitate the pavement for a design period of 10 years, was to add 3.5 % of Portland cement CP III– 40 RS and 10 % of crushed stone sizes 1 and 2, both by % weight to the pulverized material reclaimed from the original pavement structure and compact it with the energy equivalent to Modified Proctor to achieve maximum dry density at its optimum moisture content.

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  • Corporate Authors:

    Universidade Presbiteriana Mackenzie

    Rua da Consolacao, 930
    , Sao Paulo  Brazil 
  • Authors:
    • Arrieiro de Oliveira, Paulo Cesar
    • Sant'Anna, Fernando Marcio Guimaraes
    • Vasconcellos de Souza, Firmino Savio
  • Conference:
  • Publication Date: 2005

Language

  • English

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  • Accession Number: 01084877
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 28 2008 8:13AM