Pervious concrete is a high porosity concrete that allows water to pass through, reducing runoff and aiding groundwater recharge, recognized as a best management practice by the EPA. It comprises cement and coarse aggregates, with applications in sustainable construction to mitigate water logging and enhance drainage. Despite its benefits, issues such as clogging, variability in permeability, and acceptance by municipalities remain challenges.

1. PERVIOUS
CONCRETE
1
PerviousConcrete
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)
2
PerviousConcrete

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
3
PerviousConcrete

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
4
PerviousConcrete

5. Fig. 2 Schematic representation of
Source: http://www.stevensonconcrete.com
5
PerviousConcrete

6. PERVIOUS CONCRETE IMPERVIOUS CONCRETE
Fig.3 Transpiration rate of Pervious and impervious
Concrete
Source: http://www.stevensonconcrete.com
6
PerviousConcrete

7. PERVIOUS IMPERVIOUS
Fig. 4 Pervious and impervious concrete pavement
Source: http://www.google.com
7
PerviousConcrete

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
8
PerviousConcrete

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
9
PerviousConcrete

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.
10
PerviousConcrete

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
11
PerviousConcrete

12. MATERIALS USED
 Aggregates
 Cementious Materials
 Water
 Admixtures
12
PerviousConcrete

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
13
PerviousConcrete

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.
14
PerviousConcrete

15. Table 1 Physical properties of Cement
Source:[1]
15
PerviousConcrete

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
PerviousConcrete

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
17
PerviousConcrete

18. Table 2: Typical Pervious Concrete Materials Proportions
Source :[1]
18
PerviousConcrete

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.
19
PerviousConcrete

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
PerviousConcrete

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.
21
PerviousConcrete

22. APPLICATIONS
 Pervious pavement for parking lots.
 Alleys and driveways.
 Trees gates in sidewalk .
 Swimming pool decks.
 Tennis court.
 Greenhouse floors.
22
PerviousConcrete

23. CONCLUSION
 The pervious concrete helps the water to infiltrate
 Cities with pervious pavements would be safer for traffic, be
cleaner and less pollution.
23
PerviousConcrete

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
PerviousConcrete

25. THANK YOU
For more…. Mail to
aglaiaconnect2018@gmail.com