Evaluation of Mix Designs and Test Procedures for Pervious Concrete

Pervious concrete is a mixture of cement, aggregate, and water that provides a level of porosity which allows water to percolate into the sub-grade. It differs from the conventional concrete since it usually contains a smaller amount of fine aggregate. There is typically single size aggregate in pervious concrete which results in larger air void than conventional concrete. The District Department of Transportation (DDOT) constructed pavements in selected street alleys using pervious concrete on a pilot basis. DDOT does not currently have its own specifications for pervious concrete. As a result, this research was aimed at developing and testing five design mixes of pervious concrete to identify the appropriate mix which would provide the maximum compressive strength with an acceptable permeability rate and flexural strength. The tests were conducted on the five design mixes using three different types of compaction methods (self-consolidating, half-rodding and Standard Proctor Hammer). Based on the results, a design mix with a compressive strength of 3,500 pounds per square inch (psi) with a maximum coefficient of permeability of 57.82 inches per hour (in/hr) was selected. The maximum modulus of rupture of the selected mix was determined to be 565 psi. The in-situ infiltration tests conducted at 3 locations in the District of Columbia (DC) with the optimal pervious concrete mix yielded average infiltration rates between 86.1 and 208.7 in/hr. This falls within the typical infiltration rate of pervious concrete (i.e., 100 to 200 in/hr, on average).

• Record URL:
  http://d92016.eos-intl.net/eLibSQL14_D92016_Documents/2014-02_Pervious%20Concrete%20Final%20Report.pdf
• 
• Corporate Authors:

  Howard University

  2300 Sixth Street NW
  Room 1026
  Washington, DC  United States  20059

  District Department of Transportation

  250 M Street, SE
  Washington, DC  United States  20003

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Medhani, Rezene
  • Khan, Wasi
  • Arhin, Stephen
• Publication Date: 2014-10-27

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 39p

Subject/Index Terms

• TRT Terms: Compressive strength; Concrete; Flexural strength; Infiltration; Mix design; Permeability; Porosity
• Geographic Terms: Washington (District of Columbia)
• Subject Areas: Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I32: Concrete;

Filing Info

• Accession Number: 01544637
• Record Type: Publication
• Report/Paper Numbers: DDOT-RDT-14-02, HUTRC-01-2014, 14-02
• Contract Numbers: PO 438832
• Files: TRIS, ATRI, USDOT
• Created Date: Nov 24 2014 3:28PM