Expansion Joints

Hercules Strip Seal Joints (HSJ)

Hercules Strip Seal Joints (HSJ)is designed to allow for movement from 50mm to 102mm. The joint consists of elastomeric seal which are fitted to the extruded steel profile and anchored by loop anchor system. The elastomeric seal consists of VIRGIN Poly Chloroprene and supply in one continuous length & the steel profile extruded from structural steel such as Weathering Steel S355 JOW, ASTM A588 or non- weathering steel such as S275 or equivalent.

DESIGN CONCEPT

Designed by incorporating elastomeric seal (movement + water proofing) and fixed by a special extruded steel profile.

MATERIAL

Consists of the following components which the materials comply with the Oman standard Specifications for Road & Bridge Construction 2010 & AASHTO specification.

MaterialSpecification
Extruded Steel ProfileS275JR (EN10025), S355 JOW ASTM A588 or equivalent.
Anchor PlateS275JR (EN10025), S355 JOW ASTM A588 or equivalent.
Loop anchor BarsReinforcement bar for concrete reinforcement grade 250 or equivalent

Table: Material Specification

The Elastomeric Seal shall comply to the following requirements which tested according to ASTM Test Methods.

PropertiesRequirementsTest Method
Tensile Strength, MPa15.5 min.ASTM D412
Elongation at Break, %400% min.ASTM D412
Hardness, Shore ‘A’65±5ASTM D2240
Resistance to permanent set, (After 22hrs at 7 )%30 max.ASTM D 395-89 Method B
Oil resistance ,Immersion ASTM No.3 approximately 70 hours at 100 C, Weight change, %45 max.ASTM Immersion No.3
Ozone Resistance (70hrs@40 C, 20% strain, 300pphm in air)No CracksASTM D1149
Low temperature brittleness, at – 40 CNot brittleASTM D746

HSK was designed for movement in the range from 50mm to 102mm.

Hercules Part No.Total Movement (mm)
HSJ – 50±25
HSJ – 60±30
HSJ – 70±35
HSJ – 80±40
HSJ – 90±45
HSJ – 102±51

Installation

HSK shall be
  • Designed to facilitate ease of installation and removal in the future without damaging any of the permanent bridge structure.
  • Installed according to manufacturer’s installation method statement.
  • The Elastomeric Seal shall comply to the following requirements which tested according to ASTM Test Methods.

    Our Services

    Design

    We serve as technical liaisons with consulting engineers and builders at the design stage of a project. Provision of detailed specifications, calculations and feedback on drawings for project specific applications. 

    Manufacturing

    All products in the Hercules™ range are manufactured and tested in compliance with the relevant standards: AS5100.4:2017, BS5400, AASTHO and MS ISO 9001.

    Technical Support

    We provide detailed installation  guidance that is specific to each project and site conditions. Remote and/or on-site assistance provided by via comprehensive data sheets and trained personnel where appropriate. 

    Custom Solutions

    Our capabilities include providing tailored solutions to challenging engineering scenarios, where conventional methods of design, manufacturing and installation may not be suitable. 

    Design

    We serve as technical liaisons with consulting engineers and builders at the design stage of a project. Provision of detailed specifications, calculations and feedback on drawings for project specific applications. 

    Manufacturing

    All products in the Hercules™ range are manufactured and tested in compliance with the relevant standards: AS5100.4:2017, BS5400, AASTHO and MS ISO 9001.

    Technical Support

    We provide detailed installation  guidance that is specific to each project and site conditions. Remote and/or on-site assistance provided by via comprehensive data sheets and trained personnel where appropriate. 

    Custom Solutions

    Our capabilities include providing tailored solutions to challenging engineering scenarios, where conventional methods of design, manufacturing and installation may not be suitable. 

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