Home > Encyclopedia

Pervious Concrete

Pervious concrete is mixed by eliminated most or all fine aggregates from the mixture. Pervious pavements are used to allow storm water to percolate through their cavity, and to some extents, to allow roots and soils under the pavement respiring. The gas permeability of pervious concrete is thus important to the soil breathing under pervious pavements.

Pervious Concrete

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 typically are 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.

Applications for Pervious Concrete

  • Low-volume pavements
  • Residential roads, alleys, and driveways
  • Sidewalks and pathways
  • Parking lots
  • Low water crossings
  • Tennis courts
  • Subbase for conventional concrete pavements
  • Patios
  • Artificial reefs
  • Slope stabilization
  • Well linings
  • Tree grates in sidewalks
  • Foundations/floors for greenhouses, fish hatcheries,
  • aquatic amusement centers, and zoos
  • Hydraulic structures
  • Swimming pool decks
  • Pavement edge drains
  • Groins and seawalls
  • Noise barriers
  • Walls (including load-bearing)

How to Produce

Pervious concrete consists of cement, coarse aggregate and water with little to no fine aggregates. The addition of a small amount of sand will increase the strength. Water to cement ratio of 0.28 to 0.40 with a void content of 15 to 25%. It can be mixed by hand or machine, for large demand, or HZS concrete batching plant can produce ready mix pervious concrete capacity from 25-240 cubic meter per hour.

>>Previous: Continuous Concrete Mixing Plant

>>Next: The Role of Aggregate in Concrete

Get Support & Quotation

Please fill in the form below(* are required), and we will get in touch with you as soon as possible.

Batching Plant Concrete Mixer Crusher Other

Solution

  • Granite Crushing,Granite Crushing LineGranite Crushing Line

    The Granite Crushing Line designed by Camelway has the advantages of high automation degree, high crushing capacity, low operation cost, low energy consumption and qualified environmental protection performance, and the end products it produced has a good...

  • Production of lightweight aggregates,lightweight aggregate production lineProduction of lightweight aggregates

    Lightweight aggregate is used to produce lightweight concrete products such as concrete blocks, structural concrete, and pavement. It can be classified into 3 types--Structural lightweight aggregate, Masonry-lightweight aggregate and Insulating aggregate....

  • Roller Compacted Concrete Plant, RCC Mixing Plant, RCC Batching PlantRoller Compacted Concrete Plant

    Roller compacted concrete (RCC) is an extremely dry concrete which is very difficult to compact by the normal methods used for workable concrete. RCC is used for the construction of dams and pavements....

  • Limestone Crushing,Limestone Crushing LineLimestone Crushing Line

    The compressive strength of limestone is generally about 150 MPa under the category of soft rock, hence, in the selection of limestone crushing technology, adop...

  • Diabase Crushing, Screening and Sand Making Production LineDiabase Crushing, Screening and Sand Making Production Line

    Diabase is a superior building material that can be used as asphalt concrete crushed stones for super highway pavement. The production mainly consists of jaw cr...

Contact Us

Tel: 008637165861518

Fax: 008637165861528

E-mail:info@camelway.com

Mobile: 008618838109566

WhatsApp: 008618838109566

Skype: Camelway1983