TRB releases report on resilience after natural disasters in transportation infrastructure

June 12, 2018

On June 11, 2018, the Transportation Research Board (TRB) National Cooperative Highway Research Program (NCHRP) released a prepublication, unedited version of “Synthesis 527: Resilience in Transportation Planning, Engineering, Management, Policy, and Administration” by Aimee Flannery, Maria A. Pena and Jessica Manns. The draft report documents resilience efforts and how they are organized, understood and implemented …

2019 IECA Annual Conference and Expo abstracts due Friday

May 29, 2018

The deadline to submit abstracts for the International Erosion Control Association (IECA) Conference and Expo, Feb. 19–22, 2019, in Denver, Colo., is this Friday, June 1, 2018, the association said.                 Speaking at the conference will allow participants to gain exposure for their work while providing advancements to the …

2019 TRB Annual Meeting issues calls for papers

May 25, 2018

TRB standing committees have issued calls for papers for the 98th TRB Annual Meeting, Jan. 13–17, 2019, in Washington, D.C, and/or the Transportation Research Record: Journal of the Transportation Research Board (TRR). Please create or update your profile on https://www.mytrb.org now if you plan to attend the Annual Meeting, submit a paper for presentation or …

The smart maintenance strategy: Paving fabric is a long-lasting, economical choice for road repair

July 24, 2009

Shedding new light on the economic value of incorporating a paving fabric interlayer in pavement in maintenance projects. By Jamie Swedberg This newly released work is a comprehensive study of pavement repair materials and methods. It examines maintenance treatments on 370 roads in Greenville County, S.C., in the 1997-98 maintenance year. The work is called …

Water and wastewater applications of geosynthetics

Need for secure containment Containment of water and wastewater in ponds may be needed for reasons as wideranging as seepage avoidance to prevention of groundwater contamination. Whatever the reason for lining a pond, the use of geosynthetics in these types of applications is growing. Geomembranes create an essentially impermeable barrier that prevents any liquid that …

Canal lining with geosynthetics

The problem As clean water becomes more difficult to acquire, the need for secure water containment and transport grows. This problem is exacerbated by urban water demands and increased agricultural production in remote areas around the world. There is a demand for vast amounts of water in areas where water does not naturally exist at …

Silt fence applications for geosynthetics

Sediment control Silt fences, or temporary sediment control fences, often are the most visible form of erosion or sediment control on a construction site. Used properly, silt fences can limit the transport of eroded soil from disturbed areas. A silt fence is not an erosion control device; it is a sediment control device. As soil …

Handbook of geosynthetics

Dealing with difficult sites In the past, when dealing with difficult sites for construction purposes, the conventional practice was limited to either replacing the unsuitable soils, or bypassing them with costly deep foundations. Additionally, the age-old problem of land scarcity and the need to rebuild aging infrastructure in urban areas, increased realization of seismic hazards, …

Geosynthetic reinforcement of the aggregate base/subbase courses of pavement structures

July 27, 2000

Abstract Geosynthetic reinforcement of the base, or subbase, course of pavement structures is addressed. The value added with reinforcement, design criteria/protocols, and practices for design and for material specifications are presented. Base, or subbase, reinforcement is defined within as the use of geosynthetic reinforcement in flexible pavements to support vehicular traffic over the life of …

Geosynthetics in pavement systems applications

May 6, 1999

Introduction This “white paper” is provided in response to the requests from AASHTO Subcommittee on Materials Technical Section 4E Task Force on Geogrid/Geotextile Specification, to provide background information and specifications for the use of geogrids and geotextiles in pavement system applications. The white paper contains the following items. Terminology Summary of Installation Damage Studies Summary …