Laboratory Study on the Stormwater Retention and Runoff Attenuation Capacity of Four Permeable Pavements

Abstract

Hydrological behavior of pervious pavements during rainfall events is a complex process that is affected by many factors such as surface type, aggregates nature, layer thickness, rainfall height, rainfall intensity and the preceding dry period. In order to determine the influence of construction materials on the runoff attenuation capacity of pervious pavements sixteen laboratory models were created with four different cross sections obtained by combining two pervious surfaces and two subbase aggregate materials. Successive rainfall simulations were applied over the laboratory models measuring lag times, retained rainfalls, times to peak and peak outflows were registered for the simulated rainfalls. The results obtained were grouped depending on the materials used and statistically analysed in order to compare their stormwater retention and runoff attenuation capacities. Both surface type and sub-base aggregate characteristics were proven to influence the attenuation capacity of pervious pavements. While sub-base aggregate materials highly influence the hydrological performance during the first rainfall simulations, the permeable surface affects the hydrological behavior during the final rainfall events and the retention capacity variation over time.

Laboratory Assessment of the Infiltration Capacity Reduction in Clogged Porous Mixture Surfaces

“…Specifically, a non-parametric Mann-Whitney U-test [40] was used to enable pairwise comparisons to be made between groups of populations, assessing the significance of the differences observed by testing the null hypothesis of equality of populations. This statistical test has been extensively used in previous works in related fields [1,3,20] to make similar comparisons to those performed in this research. The test was performed with a confidence level of 95% (α = 0.05), and hence the hypothesis of equality of populations is rejected when the statistical significance (Sig.)…”

“…0.34 (1) where Dd is the diameter of the drops in mm and Mp is the weight of the flour pellets in grams.…”

“…Some researchers have attempted to use rainfall simulators in the search for methods that help to measure the infiltration capacity of permeable surfaces in a more realistic way and under more accurate conditions. Laboratory experimental devices were developed for obtaining the infiltration capacity on a small, medium, and full-scale by Rodriguez-Hernandez et al [7], Sañudo-Fontaneda et al [9], Rodriguez-Hernandez et al [1], and portable devices for field analysis by Fernandez-Barrera et al [15] and Nichols et al [16], amongst others.…”

“…The progressive urban sprawl during the last decades has worsened the problems related to stormwater management in urban areas [1]. The decline of natural pervious areas has led to the increase of runoff volumes in lowland areas, causing local flooding problems and Combined Sewer Overflows (CSO) in areas with combined sewerage systems [2].…”

Hydraulic Performance of Permeable Asphalt and Picp in Swmm, Validated by Laboratory Data

“…Permeable pavement systems have become an important integral part of sustainable urban drainage systems despite the lack of corresponding high-quality research in comparison to other research areas [4]. Some research carried out to test permeable pavements (PA and PICP) and its performance under laboratory-controlled conditions have been done by Andrés-Valeri et al [5], Huo et al [6], Lucke and Beechman [7], Rodriguez-Hernandez et al [8], Sañudo-Fontaneda et al [9] and Sedyowati and Susanti [10].…”