Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Use of Pervious Concrete in Developing Countries for Stormwater Management
Among the many strategies presently used for stormwater management, pervious concrete is of great interest since its high porosity increases groundwater regeneration. Despite its popularity, pervious concrete is not currently being used or studied in Lebanon. This study used local materials to determine an optimum mix design for pervious concrete for a sidewalk project in Jdeideh, Lebanon. Samples were prepared with various water to cement (w/c) and aggregate to cement ratios (A/C). A cement by-product (cement kiln dust) was also used in the mix design. Cylindrical samples of each mix were prepared and cured for 28 days then subjected to permeability and strength tests. Results showed the optimum mix design was A/C=4.5 and w/c=0.36. Several laboratory specimens were then prepared using the optimum mix design. Clogging tests were performed by placing sediments on the surface of selected samples prior to permeability testing. Findings showed permeability decreased as the amount of sediment increased. The optimum mix was used to build a 500 m test section in Jdeideh, a major city north of Beirut. Field testing (i.e., percolation test) is being conducted and core samples taken for lab testing. The test section’s performance will be monitored over the coming year.
Use of Pervious Concrete in Developing Countries for Stormwater Management
Among the many strategies presently used for stormwater management, pervious concrete is of great interest since its high porosity increases groundwater regeneration. Despite its popularity, pervious concrete is not currently being used or studied in Lebanon. This study used local materials to determine an optimum mix design for pervious concrete for a sidewalk project in Jdeideh, Lebanon. Samples were prepared with various water to cement (w/c) and aggregate to cement ratios (A/C). A cement by-product (cement kiln dust) was also used in the mix design. Cylindrical samples of each mix were prepared and cured for 28 days then subjected to permeability and strength tests. Results showed the optimum mix design was A/C=4.5 and w/c=0.36. Several laboratory specimens were then prepared using the optimum mix design. Clogging tests were performed by placing sediments on the surface of selected samples prior to permeability testing. Findings showed permeability decreased as the amount of sediment increased. The optimum mix was used to build a 500 m test section in Jdeideh, a major city north of Beirut. Field testing (i.e., percolation test) is being conducted and core samples taken for lab testing. The test section’s performance will be monitored over the coming year.
Use of Pervious Concrete in Developing Countries for Stormwater Management
Khoury, Naji (Autor:in) / Saad, Louis Junior (Autor:in) / Saad, Charles (Autor:in)
Eighth International Conference on Case Histories in Geotechnical Engineering ; 2019 ; Philadelphia, Pennsylvania
Geo-Congress 2019 ; 340-346
21.03.2019
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Use of Pervious Concrete in Developing Countries for Stormwater Management
| British Library Conference Proceedings | 2019
Developing Pervious Concretes for Urban Stormwater Management in Nordic Environments
| British Library Conference Proceedings | 2014
PERVIOUS CONCRETE AND STORMWATER INFILTRATION IN PIEDMONT CLAY SOILS
| British Library Conference Proceedings | 2017
Development of a VDOT Special Provision for Pervious Concrete in Stormwater Management
| UB Braunschweig | 2016