pervious concrete

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PERVIOUS CONCRETE

• Presented by
• D.Koteswara reddy
• 14KQ1A0116
• PACE COLLEGE

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contents

• Introduction
• History of pervious concrete
• Materials
• Mix-proportion
• Applications
• Advantages
• Des-advantages
• Reference
• conclusion

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introduction

• Pervious concrete is a special type of concrete
  with a high porosity used for concrete flat work
  applications
• Pervious concrete allows the water to percolate
  through the concrete in to the sub-base
  recharge the ground water level .

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History of pervious concrete

• Pervious concrete was first used in 1852.
• Pervious concrete has been employed in European
  countries since the 19th century.
• Pervious concrete can be successfully used in
  INDIA.

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materials

• Pervious concrete mainly consists of
• Ordinary Portland cement
• Coarse aggregates(19mm-9.5mm)
• Water(free from salts impurities)
• Supplementary cementinious materials(SCM)such as
  fly ash , pozzolona blast furnace slag are also
  used

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Mix-proportion
material Kg/m3
cement 356
Coarse aggregates 1543
water 95
admixtures percentage
Fly ash(or) 25
slag 50

• The national ready-mix concrete

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applications

• The various applications of pervious concrete are
  as follows
• Residential roads , driveways
• Low volume pavements
• Flat works
• Court yards
• Drainage areas
• Parking areas

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advantages

• Recharge the ground water level
• Reduce the risk of flooding hydroplaning
• Requires less costly repairs than black top
• Longer service life lower life cycle cost than
  asphalt

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Dis-advantages

• Difficult in providing the reinforcement
• Frequent maintenance is required
• Compressive strength is comparatively less
• Require more time experimental works for the
  construction
• It can not be used for the construction of
  bridges , buildings , dams so on

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reference

• www.pervious concrete
• M.s.shetty /concrete technology
• VIDEOS on YOU TUBE, pervious concrete

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conclusion

• The pervious concreter is used to reduce the
  floods
• The pervious concrete cant used for the
  construction of buildings , dams , bridges
  because of low strength
• Pervious concrete is used to recharge the ground
  water level

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