A new iron age

Premature failure of ironwork (access covers and gratings) associated with drainage systems is a costly and disruptive problem for highway engineers in the UK. Research has been conducted at Nottingham University, in association with Saint-Gobain Pipelines and Scott Wilson Pavement, into the performance and failure of ironwork installations. The first research phase showed that traditional cementitious bedding mortars were unsuitable for ironwork installations, that movement of the manhole cover frame under dynamic loads damaged the road and ironwork, and that incorrect specification could lead to damage or failure. In the second phase, the potential for flexible manhole construction is being examined. 'Traffic Intensity Software' has been developed to assess the dynamic forces affecting drain covers in any location and to define the type of D400 cover required. The traffic intensity system offers a reliable method of evaluating applications without any local site knowledge. The system is likely to be considered within the ironwork specification guidelines in the Highways Agency planned document relating to the installation and selection of road materials.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00396303
• Authors:
  • Clarke, K
• Publication Date: 2001-3-1

Language

• English

Media Info

• Pagination: 20-1
• Serial:
  • SURVEYOR
  • Publisher: Hemming Group, Limited
  • ISSN: 0039-6303

Subject/Index Terms

• TRT Terms: Drainage; Failure; Highways; Iron; Maintenance; Pipe; Prevention; Research projects; Software; Standards; Traffic density
• Uncontrolled Terms: Guidance; Selection
• Geographic Terms: United Kingdom
• ITRD Terms: 2937: Drainage; 5520: Failure; 9104: Guidance; 2755: Highway; 7159: Iron; 3847: Maintenance; 3361: Pipe; 9149: Prevention; 8557: Research project; 9072: Selection; 8645: Software; 187: Specification (standard); 673: Traffic concentration; 8119: United Kingdom
• Subject Areas: Highways; Hydraulics and Hydrology; Maintenance and Preservation; Research; Security and Emergencies; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01018293
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Feb 2 2006 8:17AM