Pervious concrete (also called porous concrete, permeable concrete, no fines concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge. ... pervious concrete cost vs concrete pervious concrete cost pervious concrete paving pervious concrete driveway pervious concrete companies pervious concrete installation pervious concrete patio pervious concrete cost per yard interesting civil engineering topics civil engineering topics for presentation civil seminar topics ppt civil engineering seminar topics 2018 best seminar topics for civil engineering seminar topics pdf seminar topics for mechanical engineers seminar topic for civil engineering pdf

1. PERVIOUS
CONCRETE
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PRESENTED BY
AGLAIA

2. INTRODUCTION
 It is a special type of concrete with a high porosity used for
concrete flatwork applications that allows water to pass
directly.
 It reduces the runoff and allowing groundwater recharge
 The high porosity is attained by a highly interconnected
void content.
 Recognized as the best management practice by US
Environment Protection agency (EPA)
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3. PERVIOUS CONCRETE
 It is a mixture of Cement, Corse aggregate and with or
without sand and has enough cementitious paste to
coat the coarse aggregate while preserving the
interconnectivity of the voids.
 This concrete is being used as paving material to solve
or reduce the storm water runoff to the drainage
system and minimize water logging problems
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4.  It is an important application for sustainable construction
 It is one of many low impact development techniques used
by builders to protect water quality.
Fig.1 Pervious Concrete
Source: http://www.stevensonconcrete.com
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5. Fig. 2 Schematic representation of
Source: http://www.stevensonconcrete.com
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6. PERVIOUS CONCRETE IMPERVIOUS CONCRETE
Fig.3 Transpiration rate of Pervious and impervious
Concrete
Source: http://www.stevensonconcrete.com
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7. PERVIOUS IMPERVIOUS
Fig. 4 Pervious and impervious concrete pavement
Source: http://www.google.com
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8. HISTORY OF PERVIOUS CONCRETE
 It was first used in 1852. Pervious Concrete was first
used in 1852.
 It has been employed in European countries Pervious
concrete has been employed in European countries since
the nineteenth century.
 The earliest usage of pervious concrete in modern history
was for two houses in England.
 Over 900 houses were built from for two houses in
England.
 Most houses using pervious concrete are in the United
Most houses using pervious concrete are in the United
Kingdom
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9. PROPERTIES OF PERVIOUS
CONCRETE: CONCRETE:
 Fresh Properties
 The plastic pervious concrete mixture is stiff compared
to The plastic pervious concrete mixture is stiff
compared to traditional concrete. traditional concrete.
 Slumps, when measured, are generally less than ¾
inches (20 mm), although slumps as high as 2 inches
(50 mm) have been used
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10. HARDENED PROPERTIES
 Density and Porosity
 The densities are in the order of 1600 kg/m3 to
2000kg/m3. 2000kg/m3.
 The void contents of the pervious concrete ranges from 20
to 25%. to 25%.
 Permeability
 Typical flow rates for water through pervious concrete are
120 L/m²/min. 120 L/m²/min and 3.8 MPa.
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11.  Compressive Strength
 Pervious concrete mixtures can develop compressive
strengths in the range of 3.5 MPa to 28 Mpa.
 Typical values are about 17 MPa.
 Flexural strength
 Flexural strength in pervious concretes generally ranges
between about 1 MPa
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12. MATERIALS USED
 Aggregates
 Cementious Materials
 Water
 Admixtures
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13. AGGREGATES
 Pervious concrete has little or no fine aggregates in the
mixture.
 Aggregate size is typically between 3/8 to1/2 inch
maximum.
Fig. 5 Aggregate
Source: http://www.wikipedia.com
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14. CEMENTIOUS MATERIALS
 Typically type-I cement is used for the production of
pervious concrete.
 Supplementary cementious materials such as fly ash or
slag can be used in
 Exchange up to about 25% (fly ash) and up to about
50%(slag) of cement.
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15. Table 1 Physical properties of Cement
Source:[1]
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16. WATER
 Water meeting standard requirements for conventional
concrete can be used for the production of pervious
concrete
Fig.6 water
Source: http://www.stevensonconcrete.com 16
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17. ADMIXTURES
 Air entraining admixtures may be used to improve the
freeze/thaw durability of the paste/mortar.
Fig.7 Concrete with admixture
Source: http://www.google.com
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18. Table 2: Typical Pervious Concrete Materials Proportions
Source :[1]
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19. MAINTENANCE
 Maintenance of pervious concrete pavement consists
primarily of prevention of clogging of the void structure.
 Cleaning options may include power blowing and pressure
washing.
 Pressure washing of a clogged pervious concrete
pavement has restored 80% to 90% of the permeability in
some cases.
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20. ENVIRONMENTAL BENEFITS
 Reduces storm water runoff
 Eliminates need for detention ponds
 Replenishes water tables and aquifers.
 Allows for more efficient land development.
 Minimizes flash flooding and standing water.
 Prevents warm and polluted water from entering streams.
 Mitigates surface pollutants.
 Light reflectivity is higher than with asphalt surfaces, reducing
any heat island effect. 20
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21. DISADVANTAGES
 Runoff from adjacent areas onto pervious concrete needs to be
prevented.
 The parking areas are generally limited to auto parking and
occasional trucks.
 If reinforcement is required, epoxy coated bars should be used.
 Concrete is variable in permeability; over vibration significantly
reduces permeability.
 It is still a new material that requires acceptance from cities and
states.
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22. APPLICATIONS
 Pervious pavement for parking lots.
 Alleys and driveways.
 Trees gates in sidewalk .
 Swimming pool decks.
 Tennis court.
 Greenhouse floors.
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23. CONCLUSION
 The pervious concrete helps the water to infiltrate
 Cities with pervious pavements would be safer for traffic, be
cleaner and less pollution.
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24. REFERENCES
 Hisar ,Vikram1, Mahla R.P(2015) “Experimental Study of
Pervious Concrete Pavement” International Journal for
Research in Applied Science & Engineering Technology
(IJRASET) .
 Shri, S. Deepa and R. Thenmozhi. (2012). "Flexural behavior
of hybrid fibrocement slabs with micro concrete and fibers." Int
J Emerg Trends Eng Dev 4(2): 165-177.
 Jing Yang, guoliang jiang. (2003). “Experimental study on
properties of pervious concrete pavement materials”, Cement
and Concrete research 33(2003) Pg No 381-386.
 Krishnaraj, C., Mohanasundram, K. M. and S. Navaneetha
santhakumar.(2012). “Implementation Study Analysis of Ft
fmea Model in Indian Foundry Industry”. Journal of Applied
Sciences Research, 8(2): 1009-1017. 24
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25. THANK YOU
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