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Fibrelite Composite Manhole and Trench Covers

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 EMEAUS and CanadaLatin AmericaAsia Pacific 

Europe, Middle East & Africa (EMEA)

US and Canada

Latin America

Asia Pacific

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Fibrelite Custom-Engineers Heavy-Duty GRP Trench Covers for Precast Concrete Troughs at Airport Maintenance Facility

Read the Case Study

Project Overview

A third-party engineering and construction company contacted Fibrelite to provide a bespoke GRP composite trench covering arrangement to fit precast concrete service trenches at a UK airport maintenance facility.

The concrete troughs had already been sourced, and sizing and specification finalised, making a custom Fibrelite covering solution an ideal solution.

Fibrelite provided a bespoke composite trench covering arrangement for this airport maintenance facility
Fibrelite provided a bespoke composite trench covering arrangement for this airport maintenance facility

CALL US TO DISCUSS YOUR PROJECT TODAY! + 1 800 422 2525 + 44 (0) 1756 799 773

Problem

The fact that the concrete troughs had already been acquired prior to Fibrelite’s involvement in the project presented a number of design challenges, as well as those related to the nature of the application.

Key design challenges:

  • Custom cover dimensions to fit existing troughs.
  • E600 ‘Super Heavy Duty’ load rating essential due to frequent high wheel loads.
  • Every third cover required 140x50mm apertures for access to compressed air lines.
  • Non-standard colour pigment requested.

In addition to the above, a strict construction programme was mandated.

Cover dimensions had to be custom manufactured to fit existing trough dimensions
Cover dimensions had to be custom manufactured to fit existing trough dimensions
A E600 ‘Super Heavy Duty’ load rating was essential due to the frequent high wheel loads
A E600 ‘Super Heavy Duty’ load rating was essential due to the frequent high wheel loads

Solution

Fibrelite proposed a custom, retrofit GRP composite trench cover design which would fit directly into existing troughs. This design was approved by the client shortly after submission.

Key features:

  • Custom covers, dimensionally consistent to all details provided by the client, allowing them to be fitted immediately into existing trough rebates upon delivery.
  • Covers stepped from 40 to 65mm deep in order to accommodate E600 load rating.
  • Every third cover modified with 140x50mm ‘mouse hole‘ aperture to enable easy access to compressed air lines.
  • Covers manufactured using Light Grey colour pigment.

Covers were manufactured and delivered before the project deadline.

Covers were stepped from 40 to 65mm deep to meet E600 load rating
Covers were stepped from 40 to 65mm deep to meet E600 load rating
Every third cover modified with 140x50mm ‘mouse hole‘ aperture to enable easy to access to compressed air lines
Every third cover modified with 140x50mm ‘mouse hole‘ aperture to enable easy to access to compressed air lines

Results

Fibrelite covers enable easy safe manual access to trenches, eliminating the need for specialist personnel or machinery during maintenance or operation (and resultant costs).

Key benefits of Fibrelite covers:

  • Best strength to weight ratio available in the market today.
  • Easy, safe access to trench services using the Fibrelite’s ergonomically designed FL7 lifting handles.
  • Fit-and-forget corrosion-free long-term solution.
All Fibrelite trench covers can be safely and quickly removed by two people using the FL7 lifting handles (image used for illustration purposes and shows a different installation)
All Fibrelite trench covers can be safely and quickly removed by two people using the FL7 lifting handles (image used for illustration purposes and shows a different installation)

CALL US TO DISCUSS YOUR PROJECT TODAY! + 1 800 422 2525 + 44 (0) 1756 799 773

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