Porous concrete mixtures for pervious urban pavements
Keywords:porous concrete, pervious concrete, drain concrete, permeability, infiltration
The present study aimed to analyze the hydraulic and mechanical behaviour of a series of roller-compacted, laboratory porous concrete mixtures. The mix design variables examined were the actual void ratio in the hardened concrete and the water/cement ratio. From these results the better dosages from the mechanical and hydraulical behaviour point of view were determined.
One of the designs developed was found to exhibit excellent hydraulic capacity and 20% greater strength than the mixtures recommended in the literature. Moreover, concrete with an actual void ratio of only 14% was observed to meet permeability requirements. Maximum flexural strength of concretes with different w/c ratios was achieved with a cement paste content of 250 l/m3. Relationships were found between the void ratio and both 28-day concrete permeability and flexural strength. Finally, the doses exhibiting the best mechanical and hydraulic performance were identified.
(1) Fernández Luco, L., Vitola, L. y Salminci, P.: “Estado del arte en el uso de hormigones porosos”, XII Congreso Argentino de Vialidad y Tránsito, Buenos Aires, Argentina, Tomo II, p. 761. (Trabajo publicado posteriormente por la Revista Carreteras, Año XLVI, nº 160, marzo de 2000.)
(2) Ghafoori, N. y Dutta, S.: “Pavement thickness design for no-fines concrete parking lots”, Journal of Transportation Engineering, vol. 121, nº 6 (1995), pp. 476-484. doi:10.1061/(ASCE)0733-947X(1995)121:6(476)
(3) GCPA: Recommended Specifications for Portland Cement Pervious Pavement, Georgia Concrete and Products Association, Inc, 1997 (www.pervious.info).
(4) FCPA: Portland Cement Pervious Pavement Manual, Florida Concrete and Products Association, Inc. Florida, 1990.
(5) Meininger, R.: “No-Fines Pervious Concrete for Paving”, Concrete International, vol. 10, nº 8 (1988), pp. 20-27.
(6) Castro, J.: “Diseño de mezcla y construcción de pavimentos de hormigón poroso en Chile”, Tesis de Magíster, Pontificia Universidad Católica de Chile, 2004, 188 pp.
(7) Kwiatkowski, M. y Welker, A.: “Development of a Monitoring Program for a Porous Concrete BMP”, World Water and Environmental Resources Congress, Philadelphia, Pennsylvania, 2003.
(8) Reyes, F. y Torres, A.: “Effect of plastic fibers on flexion of drainable pavement structures”, Revista Ingeniería de Construcción, vol. 17, nº 2, mayo-agosto de 2002, pp. 93-102.
How to Cite
Copyright (c) 2007 Consejo Superior de Investigaciones Científicas (CSIC)
This work is licensed under a Creative Commons Attribution 4.0 International License.© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.
All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read here the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.