1. Where to buy or puchase raw material for pervious concrete from china supplier or manufacturer. learn more: permeable pavers, porous concrete, permeable concrete, pervious pavers, porous pavement, permeable driveway.

  2. 1. PROJECT ON PERVIOUSPROJECT ON PERVIOUS CONCRETECONCRETE
  3. 2. MY BATCHMY BATCH PROJECTGUIDEPROJECTGUIDE N.SRI KANTHN.SRI KANTH MEMBERS V.SHIVA PRAKASH(10016T0033) N.MANOHAR (10016T0031) B. RAHUL (10016T0054) K.RAJESH (10016T0052)
  4. 3. NEED OF PERVIOUS CONCRETENEED OF PERVIOUS CONCRETE  A large amount of rain water ends up falling onA large amount of rain water ends up falling on impervious surfaces such as parking lots, drive ways,impervious surfaces such as parking lots, drive ways, sidewalks, ad streets rather than soaking into the soil.sidewalks, ad streets rather than soaking into the soil.  This creates an imbalance to the natural ecosystem andThis creates an imbalance to the natural ecosystem and leads to a host of problems including erosion, floods,leads to a host of problems including erosion, floods, ground water level depletion and pollution of rivers, lakesground water level depletion and pollution of rivers, lakes etc..etc..  A simple solution to avoid these problems is to stopA simple solution to avoid these problems is to stop constructing impervious surfaces that block natural waterconstructing impervious surfaces that block natural water infiltration into the soil.infiltration into the soil.permeable pavers, porous concrete, permeable concrete, pervious pavers, porous pavement, permeable driveway.
  5. 4.  InsteadInstead of constructing them with conventional concreteof constructing them with conventional concrete or asphalt, we should be switching to pervious concreteor asphalt, we should be switching to pervious concrete or porous pavement.or porous pavement.  Pervious concrete also naturally filters water from rainfallPervious concrete also naturally filters water from rainfall or storm and can reduce pollutant loads entering intoor storm and can reduce pollutant loads entering into streams, ponds and rivers.so in this way it helps instreams, ponds and rivers.so in this way it helps in ground water recharge.ground water recharge.
  6. 5. COMPARISION OF PERVIOUS ANDCOMPARISION OF PERVIOUS AND IMPERVIOUS CONCRETEIMPERVIOUS CONCRETE PERVIOUS CONCRETEPERVIOUS CONCRETE IMPERVIOUSIMPERVIOUS CONCRETECONCRETE
  7. 6. BRIEF ABSTRACTBRIEF ABSTRACT  Pervious concrete is also called as no fines concrete.Pervious concrete is also called as no fines concrete. The permeability and strength of pervious concreteThe permeability and strength of pervious concrete depends on the particle sizes and proportions of thedepends on the particle sizes and proportions of the constituent materials of which the concrete is made of.constituent materials of which the concrete is made of. This project describes about the effect of size ofThis project describes about the effect of size of aggregates and proportions of cement, aggregates,aggregates and proportions of cement, aggregates, admixtures and water on porosity.admixtures and water on porosity.
  8. 7. AIM AND OBJECTIVEAIM AND OBJECTIVE  To determine the effect of material proportionsTo determine the effect of material proportions on the engineering properties of the perviouson the engineering properties of the pervious concreteconcrete  The main objective is to investigate theThe main objective is to investigate the performance characteristics of the perviousperformance characteristics of the pervious concrete such as porosity, compressiveconcrete such as porosity, compressive strength, infiltration rate etc…strength, infiltration rate etc…
  9. 8. INTRODUCTION  Pervious concretePervious concrete is a special type of concrete with a highis a special type of concrete with a high porosity used for concrete flatwork applications.porosity used for concrete flatwork applications.  It allows water from precipitation and other sources to passIt allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site anddirectly through, thereby reducing the runoff from a site and allowing groundwater recharge.allowing groundwater recharge.  It is also known as gap graded concreteIt is also known as gap graded concrete or permeable concrete.
  10. 9.  Pervious concrete has little or no fine aggregate.Pervious concrete has little or no fine aggregate.  It has just enough cementitious paste to coat the coarseIt has just enough cementitious paste to coat the coarse aggregate particles while preserving the interconnectivity ofaggregate particles while preserving the interconnectivity of the voids.the voids.  Pervious concrete is traditionally used in parking areas, areasPervious concrete is traditionally used in parking areas, areas with light traffic, pedestrian walkways, and greenhouses andwith light traffic, pedestrian walkways, and greenhouses and contributes to sustainable construction.contributes to sustainable construction.  It consists of 15 to 35% voids, allowing for quick drainage.  The infiltration rate of pervious concrete will fall into the range of 80 to 720 liters per minute per square meter.
  11. 10. LITERATURE REVIEWLITERATURE REVIEW  INDIAN CONCRETE JOURNAL,(INDIAN CONCRETE JOURNAL,(AUGUST 2010)AUGUST 2010) PERVIOUS CONCRETE –AN OVERVIEW BYPERVIOUS CONCRETE –AN OVERVIEW BY KARTHIK H.OBLA(PH.D IN CIVIL ENGG.)KARTHIK H.OBLA(PH.D IN CIVIL ENGG.)  INTERNATIONAL JOURNAL OF ENGINEERING ANDINTERNATIONAL JOURNAL OF ENGINEERING AND TECHNOLOGY(VOL.2 NO.5,MAY,2012)TECHNOLOGY(VOL.2 NO.5,MAY,2012) EVALUATION OF STRUCTURAL PERFORMANCE OFEVALUATION OF STRUCTURAL PERFORMANCE OF PERVIOUS CONCRETE IN CONSTRUCTIONPERVIOUS CONCRETE IN CONSTRUCTION S.O.AJAMU,A.A.JIMOH AND J.R.OLUREMIS.O.AJAMU,A.A.JIMOH AND J.R.OLUREMI
  12. 11. HISTORY OF PERVIOUS CONCRETEHISTORY OF PERVIOUS CONCRETE  Pervious Concrete was first used in 1852.Pervious Concrete was first used in 1852.  Pervious concrete has been employed in European countriesPervious concrete has been employed in European countries since the nineteenth century.since the nineteenth century.  The earliest usage of pervious concrete in modern history wasThe earliest usage of pervious concrete in modern history was for two houses in England. Over 900 houses were built fromfor two houses in England. Over 900 houses were built from 1942.1942.  Most houses using pervious concrete are in the UnitedMost houses using pervious concrete are in the United Kingdom (ACI 522 Pervious Concrete, 2006).Kingdom (ACI 522 Pervious Concrete, 2006).
  13. 12. SCHEDULING OF PROJECTSCHEDULING OF PROJECT S.NO MONTHS WORK SCHEDULED 01. AUGUST Collection of literature 02. September to November Procurement of materials and casting 03. December and January Casting and testing of cubes 04. February and march Analysis of the results obtained
  14. 13. MATERIALSMATERIALS  Pervious concrete mainly consists of:Pervious concrete mainly consists of:  Ordinary Portland cementOrdinary Portland cement  Coarse aggregate (19mm – 9.5mm)Coarse aggregate (19mm – 9.5mm)  Water (Free from salts and impurities)Water (Free from salts and impurities)  In normal concrete the fine aggregates typically fills the voidsIn normal concrete the fine aggregates typically fills the voids between the coarse aggregates.between the coarse aggregates.  In pervious concrete fine aggregate is non-existent or presentIn pervious concrete fine aggregate is non-existent or present in very small amounts (<10% by total weight of aggregates).in very small amounts (<10% by total weight of aggregates).
  15. 14. Supplementary cementitious materials (SCMs) such asSupplementary cementitious materials (SCMs) such as Flyash, pozzolonas and blast-furnace slag also are used.Flyash, pozzolonas and blast-furnace slag also are used.  These added materials will affect the performance, settingThese added materials will affect the performance, setting time, strength, porosity, and permeability of the final product.time, strength, porosity, and permeability of the final product.  The overall durability of the pervious concrete is increasedThe overall durability of the pervious concrete is increased with the use of flyash, pozzolonas and blast-furnace slag duewith the use of flyash, pozzolonas and blast-furnace slag due to decrease in permeability and cracking.to decrease in permeability and cracking.  Since pervious concrete has low workability, retardingSince pervious concrete has low workability, retarding admixtures or hydration stabilizing admixtures are useful.admixtures or hydration stabilizing admixtures are useful.
  16. 15. The National Ready-Mix Concrete Association provides theThe National Ready-Mix Concrete Association provides the following chart of typical Ranges of Materials Proportions infollowing chart of typical Ranges of Materials Proportions in Pervious Concrete.Pervious Concrete. MATERIALMATERIAL PROPORTIONSPROPORTIONS Cementitious materialsCementitious materials 270 to 415270 to 415 Kg/m3Kg/m3 AggregateAggregate 1190 to 14801190 to 1480 Kg/m3Kg/m3 Water: Cement ratioWater: Cement ratio (by mass)(by mass) 0.27 to 0.340.27 to 0.34 Aggregate: cement ratioAggregate: cement ratio (by mass)(by mass) 4 to 4.5:14 to 4.5:1 Fine: coarse aggregateFine: coarse aggregate ratioratio (by mass)(by mass) 0 to 1:10 to 1:1
  17. 16. PROPERTIES OF PERVIOUSPROPERTIES OF PERVIOUS CONCRETE:CONCRETE: Fresh Properties:Fresh Properties:  The plastic pervious concrete mixture is stiff compared toThe plastic pervious concrete mixture is stiff compared to traditional concrete.traditional concrete.  Slumps, when measured, are generally less than ¾ inchesSlumps, when measured, are generally less than ¾ inches (20 mm), although slumps as high as 2 inches (50 mm)(20 mm), although slumps as high as 2 inches (50 mm) have been used.have been used.  However, slump of pervious concrete has no correlationHowever, slump of pervious concrete has no correlation with its workability it is not be specified as an acceptancewith its workability it is not be specified as an acceptance criterion.criterion. permeable pavers, porous concrete, permeable concrete, pervious pavers, porous pavement, permeable driveway.
  18. 17. Hardened Properties:Hardened Properties: Density and Porosity:Density and Porosity:  The densities are in the order of 1600 kg/m3 toThe densities are in the order of 1600 kg/m3 to 2000kg/m3.2000kg/m3.  The void contents of the pervious concrete ranges from 20The void contents of the pervious concrete ranges from 20 to 25%.to 25%. Permeability:Permeability: Typical flow rates for water through pervious concrete areTypical flow rates for water through pervious concrete are 120 L/m²/min.120 L/m²/min.
  19. 18. Compressive Strength:Compressive Strength:  Pervious concrete mixtures can develop compressivePervious concrete mixtures can develop compressive strengths in the range of 3.5 MPa to 28 MPa.strengths in the range of 3.5 MPa to 28 MPa.  Typical values are about 17 MPa.Typical values are about 17 MPa. Flexural strength:Flexural strength:  Flexural strength in pervious concretes generally rangesFlexural strength in pervious concretes generally ranges between about 1 MPa and 3.8 MPa.between about 1 MPa and 3.8 MPa.
  20. 19. APPLICATIONS:APPLICATIONS: The various applications of pervious concrete are as follows:The various applications of pervious concrete are as follows:  Residential roads, alleys, and drivewaysResidential roads, alleys, and driveways  Low-volume pavementsLow-volume pavements  Sidewalks and pathwaysSidewalks and pathways Parking areasParking areas Tennis courtsTennis courts  Sub base for conventional concrete pavementsSub base for conventional concrete pavements  Well liningsWell linings  Swimming pool decksSwimming pool decks  Noise barriers.Noise barriers.
  21. 20. ADVANTAGES :  Reduces runoff from site. Helps in unchanging ground water. Eliminates need for retention ponds & other costly storm water management practices.  Provides for more efficient use of land development.  Water resources are conservedWater resources are conserved  Adjacent trees and vegetation are allowed moreAdjacent trees and vegetation are allowed more rainwater.rainwater.  The permeability of pervious concrete providesThe permeability of pervious concrete provides increased safety for drivers.increased safety for drivers.
  22. 21. IMPERVIOUSIMPERVIOUS PERVIOUSPERVIOUS
  23. 22. PERVIOUS CONCRETE RESIDENTIAL STREET SHOWING WATER INFILTRATION
  24. 23. Walkway in Beijing, China built for 2008 Olympics
  25. 24. Pervious concrete in IndiaPervious concrete in India  Pervious concrete can be successfully used in India inPervious concrete can be successfully used in India in applications such as parking lots, driveways,applications such as parking lots, driveways, gullies/sidewalks, road platforms, etc.gullies/sidewalks, road platforms, etc.  Massive urban migration in Indian cities is causing theMassive urban migration in Indian cities is causing the ground water to go much deeper and is causing waterground water to go much deeper and is causing water shortages.shortages.  Further, the rain water that falls on the concrete and asphaltFurther, the rain water that falls on the concrete and asphalt surfaces tend to carry a high level of pollution and thissurfaces tend to carry a high level of pollution and this pollution ends up in our waterways ultimately.pollution ends up in our waterways ultimately.
  26. 25.  The use of pervious concrete can help alleviate theThe use of pervious concrete can help alleviate the damage of all of these ills.damage of all of these ills. In future with increased urbanization, diminishingIn future with increased urbanization, diminishing ground water levels and focus on sustainability,ground water levels and focus on sustainability, technologies such as pervious concrete are likely totechnologies such as pervious concrete are likely to become even more popular in India as well as otherbecome even more popular in India as well as other countries.countries.
  27. 26. References:References:  Karthik H . Obla., “pervious concrete – an overview,” IndianKarthik H . Obla., “pervious concrete – an overview,” Indian Concrete Journal, August 2010 pp. 9-18.Concrete Journal, August 2010 pp. 9-18.  NRMCA, “What, Why, and How? Pervious Concrete,NRMCA, “What, Why, and How? Pervious Concrete, “Concrete in practice series, CIP 38, Silver Spring,“Concrete in practice series, CIP 38, Silver Spring, Maryland, May 2004, 2pp..Maryland, May 2004, 2pp..  Pervious concrete pavements, southeast Association,Pervious concrete pavements, southeast Association, www.pervious.infowww.pervious.info  NRMCA, “Freeze Thaw Resistance of Pervious Concrete,”NRMCA, “Freeze Thaw Resistance of Pervious Concrete,” National Ready Mixed Concrete Association, May 2004.National Ready Mixed Concrete Association, May 2004.  RMC Research Foundation Pervious Concrete ResearchRMC Research Foundation Pervious Concrete Research Compilation: Past, Present and Future.Compilation: Past, Present and Future.  CONCRETE TECHNOLOGY TODAY, Portland CementCONCRETE TECHNOLOGY TODAY, Portland Cement Association.Association.
  28. 27. THANK YOU..!THANK YOU..
  29. Pervious concrete pavement is a unique and effective means to address important environmental issues and support green, sustainable growth. By capturing stormwater and allowing it to seep into the ground, porous concrete is instrumental in recharging groundwater, reducing stormwater runoff, and meeting U.S. Environmental Protection Agency (EPA) stormwater regulations. In fact, the use of pervious concrete is among the Best Management Practices (BMPs) recommended by the EPA—and by other agencies and geotechnical engineers across the country—for the management of stormwater runoff on a regional and local basis. This pavement technology creates more efficient land use by eliminating the need for retention ponds, swales, and other stormwater management devices. In doing so, pervious concrete has the ability to lower overall project costs on a first-cost basis. permeable pavers, porous concrete, permeable concrete, pervious pavers, porous pavement, permeable driveway. 

    In pervious concrete, carefully controlled amounts of water and cementitious materials are used to create a paste that forms a thick coating around aggregate particles. A pervious concrete mixture contains little or no sand, creating a substantial void content. Using sufficient paste to coat and bind the aggregate particles together creates a system of highly permeable, interconnected voids that drains quickly. Typically, between 15% and 25% voids are achieved in the hardened concrete, and flow rates for water through pervious concrete are typically around 480 in./hr (0.34 cm/s, which is 5 gal/ft²/ min or 200 L/m²/min), although they can be much higher. Both the low mortar content and high porosity also reduce strength compared to conventional concrete mixtures, but sufficient strength for many applications is readily achieved.

     

    While pervious concrete can be used for a surprising number of applications, its primary use is in pavement. This site focuses on the pavement applications of the material, which also has been referred to as porous concrete, permeable concrete, no-fines concrete, gap-graded concrete, and enhanced-porosity concrete.