Abstract
During the last decades, the importance of sustainable development in society has increased considerably. Sustainable Urban Drainage Systems (SUDS) are a group of techniques that aim to improve the management of rain and run-off water while reducing their pollution. Many of these systems incorporate geotextiles in their structures, which act as a layer separation and water filter. Some authors defend the idea that by simply being installed, geotextiles partially or totally lose their separation and filtering capacities. This study proposes a testing methodology that can reproduce this effect and obtain a reduction factor for the water permeability of the material after its installation, which is defined here as the ‘new condition factor’. The procedure simulated the real installation conditions in the laboratory by causing the specimen to undergo both mechanical and hydraulic damage and subsequently measuring the loss of water permeability that it provoked on the geotextile. Two different nonwoven geotextiles were tested in order to validate the procedure and to obtain initial results that could confirm the need for the new condition factor in the design of pervious pavements with geotextiles. Analysis of variance (ANOVA) was used to determine the statistical significance of the test variables.
Highlights
The importance of sustainable development in society has increased considerably during the last decades
The main scope of this study was to design a test procedure to obtain the water permeability loss of geotextiles due to their installation in pervious pavements, some preliminary results were obtained from the tests carried out
A three-way analysis of the variance (ANOVA) was performed to the test results to determine the statistical significance of the variables affecting the tests, along with an analysis of the coefficient of variation to verify the precision of the test procedure
Summary
The importance of sustainable development in society has increased considerably during the last decades. The soil helps in the regulation of atmospheric temperature and humidity, but conventional pavements create a waterproof barrier that significantly reduces this natural regulation. This effect creates a microclimate in urban areas that impacts the quality of life of its population and modifies the water cycle [1]. Waterproofing urban surfaces reduces its capability of efficiently managing rainwater, leading to higher volumes of run-off water. This water drags contaminants present on the pavement surface, spreading the contaminant and creating diffuse pollution. Floods create significant economic damage, but they generate a sensation of vulnerability in the
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