CONSTRUCTION OVERVIEW


construction
  • Pavement is outlined and pegged to get proper alignment.
  • Modification of soil is undertaken (if required).
  • Based on the OMC established at site, add IPPL SS-IX to the Water in the Browser.
  • This Admixture of IPPL SS-IX and water at 1% above OMC, is sprayed to the ripped
    pavement and evenly distributed   throughout the pavement material.
  • Pulverization on the SSB Pavement after applied the IPPL SS-IX admixture.
  • Pavement is profiled (to design alignment).
  • Pavement compacted to min. 98% of maximum dry density (MDD) and verify in-situ
    with FDD test.
  • Pavement is open to traffic after 3 days.
  • Wearing surface - Bitumen layer is added within 5-7 days.


constructionCONSTRUCTION EQUIPMENT REQUIREMENT

  • Hydraulic Motor Grader with back-end ripper
  • Tractor with Ripper/Cultivator optional to Hydraulic Motor Grader
  • with back-end ripper or Pulverizer Machine
  • Water Browser with min. carrying capacity of 4000/12000 litres with attached sprinkler pump
  • Vibratory soil compactor 11 ton capacity Survey equipment set
  • D.C.P., N.D.G. testing equipment and Moisture meter

PAVEMENT PREPARATION

  • Scarify the existing surface and remove tree roots, stumps and vegetation.
  • Remove loose debris if any.
  • Dump & Spread the SSB Mix material over the Subgrade /GSB top layers as required.
  • Remove loose debris if any.
  • Rip/Furrow the surface to desired depth.
  • Remove all particles above the standard grading analysis.

APPLICATION OF IPPL SS-IX

construction
  • IPPL SS-IX as per the specific design requirements is added to water tanker complying to
    the OMC requirements of the stabilizing pavement layer.
  • Water tanker evenly sprays the IPPL SS-IX & Water Admixture over the stabilizing surface.

MIXING OF IPPL SS-IX

  • Using the motor grader, furrow the pavement surface upto a specified layer thickness using
    the ripper attachment. Alternately, a tractor attached Ripper/Cultivator can also be used for
    small works.
  • This can also be done by a conventional Reclaimer/ Stabilizer machines.

COMPACTION & PROFILING

construction
  • After mixing IPPL SS-IX admixture into the approved soil, profile the formation with a motor grader.
  • Compact the treated surface with a vibrating roller (not less than 11 tons capacity) to reach
    maximum Dry Density (MDD).
  • The rolling pattern must be 2 plain passes from low camber towards high camber. Then compact
    the treated surface again from low camber in a low vibration amplitude and in the reverse direction
    the compactor must be in a non vibratory mode.
  • If surface cracks are visible, skim the formation surface with a grader at desired O.M.C.
  • Do the final compaction with vibrating roller.
  • Vibration mode in one direction and non-vibratory in the reverse direction.
  • After compaction, leave the pavement closed for minimum 72 hours and then open to traffic.
    The pavement may be required to be closed for longer in case of any rain.

SEALING THE PAVEMENT

construction
  • Road to be left unsealed for a period of minimum a week for the moisture to evaporate.
  • Apply Prime/ Tack coat.
  • Lay the wearing course as per design requirements.
  • Alternatively, incase to be left unsealed, a diluted mix of IPPL SS-IX can be sprayed at a ratio of
    250ml of IPPL SS-IX mixed with a further 3 parts water (750ml) and applied at a mixed ratio of
    1 liter/m2 as per engineer’s decision and reapplying of sealing may require as per in C2
    conditions and can be re-applied in 6 month intervals.
Copyright © 2013 IPPL All Rights Reserved Powered by Flags Communications