Study of the concept of porous concrete for use on airport runways

Artigo de evento
Data de publicação
25th Annual Southern African Transport Conference, SATC 2006 - 2010: Will Transport Infrastructure and Systems be Ready
Citações (Scopus)
Merighi J.V.
Fortes R.M.
Bandeira A.
Título da Revista
ISSN da Revista
Título de Volume
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Porous concrete or pervious concrete consists of no-fines, open-graded Portland concrete mixture usually with 15-25% voids, which enables water to be drained quickly. In the literature, porous concrete is cited as a material typically used in low-traffic areas such as residential streets, parking lots, sidewalks, recreation trails, plazas, and other paved areas. However, it has been reported that a porous concrete layer over a conventional concrete base is an efficient means of reducing tyre spray and hydroplaning. The desirable properties are: significant noise reduction and drainage; acceptable strength and stiffness; adequate surface properties with respect to traffic safety such as skid resistance and sufficient service life; bonding with underlying dense concrete; and costs comparable to those of conventional pavements. Porous concrete had been reportedly used on airport runways. The aim of this study was to verify the drainage properties of porous concrete for reducing hydroplaning as well as to verify its potential use on airport runways, in particular as a surface and thin layer over concrete pavement structures. This study reports the selection and gradation of aggregates that are necessary for about 15-25% open porosity and just enough cement content required to bind the aggregates together; compressive and flexural strength behaviour; and finally, the related water permeation capacity or drainage properties. Porous concrete has the potential to serve as a wearing course even on airport runways, but further research is required to fully develop this.
Assuntos Scopus
Dense concrete , Hydroplaning , Residential streets