Hercules Strip Seal Joints (HSJ)
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.
Material | Specification |
---|---|
Extruded Steel Profile | S275JR (EN10025), S355 JOW ASTM A588 or equivalent. |
Anchor Plate | S275JR (EN10025), S355 JOW ASTM A588 or equivalent. |
Loop anchor Bars | Reinforcement 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.
Properties | Requirements | Test Method |
---|---|---|
Tensile Strength, MPa | 15.5 min. | ASTM D412 |
Elongation at Break, % | 400% min. | ASTM D412 |
Hardness, Shore ‘A’ | 65±5 | ASTM 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 Cracks | ASTM D1149 |
Low temperature brittleness, at – 40 C | Not brittle | ASTM 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 |