RocketBloc™
Providing a Smooth, Snag-Free Connection to Rigid Barriers
RocketBloc™
Elevating Compliance of G4 W-Beam to MASH TL3
RocketBloc™ is a steel blocking piece designed for retrofitting to Australian Public Domain G4 W-Beam elevating compliance to MASH TL3.
The development of the RocketBloc™ follows feedback from asset owners seeking to upgrade the containment level of existing G4 W-Beam installations and provide compliance with MASH and AS/NZS 3845.
RocketBloc™ is manufactured from 150x100x4.0mm RHS providing torsional strength and retains the same w-beam rail offset as the substituted C-block. The attachment of RocketBloc™ leaves the existing C-posts undisturbed and features elongated mounting slots allowing the w-beam guardrail to be lifted to a height of 800mm above road level.
- MASH TL3 Compliant.
- MASH TL3 deflection: 0.99m.
- Maintains the original G4 W-Beam deflection of 1.0m.
- Strong RHS section increases torsional strength.
- Introduces controlled release of the w-beam during a vehicle collision.
Product Data Sheet
RocketBloc™ FAQ’s
How does RocketBloc™ work?
RocketBloc™ achieves a controlled redirection of errant vehicles by regulating the force to release the rail throughout the impact zone, limiting dynamic deflection and to allow the C-post to collapse without tripping the vehicle.
RocketBloc™ attaches directly to the existing C-posts and features elongated mounting slots allowing the w-beam guardrail to be lifted to a height of 800mm above road level.
How is RocketBloc installed?
RocketBloc is retrofitted to existing G4 W-Beam using hand tools only. Dismantling of the w-beam rail or lifting or removal of the existing C-posts is not required.
Once the existing C-block is removed and replaced with the RocketBloc using standard fasteners, the w-beam rail is lifted to a height of 800mm above road level.
What are the dimensions of RocketBloc™?
RocketBloc™ is manufactured from 150x100x4mm RHS. The use of a closed section RHS for the manufacture of RocketBloc™ provides torsional strength, reducing the potential for the block to deform during a vehicle impact. Retaining shape during a vehicle collision is an important design consideration to maintain rail height and facilitate controlled release of the w-beam rail.
The 150mm width of RocketBloc™ maintains the same offset distance as the substituted C-blocking piece and therefore does not change the horizontal alignment of the safety barrier system.
What are the design benefits of RocketBloc?
The retrofitting of RocketBloc™ to existing G4 W-Beam elevates compliance to MASH TL3, demonstrating containment of a 2270kg pick-up truck travelling at 100km/h and 25 degrees.
