EasyPIT ULTRA / Access Chamber Systems

ReForceAdvanced Sidewall Reinforcement System

Pultruded glass reinforced polyester (GRP) beams reinforce selected sidewalls and corners of EasyPIT ULTRA modular polypropylene (PP) access chambers, improving sidewall stiffness and resistance to lateral ground pressure. This targeted reinforcement strengthens the chamber where needed while preserving the lightweight, modular design that enables easy manual handling and straightforward installation.

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EasyPIT ULTRA ReForce - Chamber View
EasyPIT ULTRA ReForce chamber view: a black modular polypropylene chamber with grey pultruded GRP beams around its sidewalls
  • StrongerSidewalls
  • GreaterLateral resistance
  • ConfigurableGRP reinforcement

Illustrative Wall Response

Structural Reinforcement in Action

Before
Illustrative wall response before reinforcement: a colour-mapped sidewall bowing inwards, deflection peaking in red at mid-span
After
Illustrative wall response after ReForce reinforcement: the same sidewall held straight, with GRP beams along its length

Concept imagery / comparative analysis supplied by Advanced Infrastructure.

Technical Configuration

Reinforcement
Pultruded GRP beam profiles
Host chamber
EasyPIT ULTRA modular PP system
Beam placement
Selected sidewalls and corners
Vertical intervals
150 mm or 300 mm*
Design parameters
Chamber size, depth, ground loads
Application
Lateral sidewall support in underground installations
Vertical intervals
150mm
ReForce GRPEasyPIT chamber
Illustrative. 150 mm / 300 mm beam spacing is an option, not a universal installation prescription; final layout requires project-specific assessment.

Why ReForce?

01

Sidewall rigidity

Improves resistance to inward deflection and deformation.

02

Lateral load support

Helps distribute earth-pressure effects across reinforced regions.

03

Deep-installation support

Adds stiffness where lateral ground pressures can be more demanding.

04

Composite durability

Corrosion-resistant, high strength-to-weight GRP construction.

Design & Load Classification Note

150 mm / 300 mm beam spacing is an option, not a universal installation prescription; final layout requires project-specific assessment. ReForce provides lateral reinforcement alongside the chamber / cover load-bearing arrangement.

EasyPIT ULTRA has been independently tested free-standing in accordance with BS EN 124 D400 loadings.

Technical marketing overviewApplication-specific engineering required

DatasheetEasyPIT ULTRA | ReForce datasheetPDF · 1.4 MBHost chamberEasyPIT® ULTRAView product

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