Nu-Guard 31™ Steel Guardrail System
It has a smaller footprint, it is lighter weight and has no requirement for a blockout, this means the Nu-Guard 31™ steel post guardrail system is comparable in cost to wooden post systems and is simpler and quicker to install.
Features:
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System has a smaller footprint and no blockout –maximises road area |
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NUCOR™ steel posts and no blockout enable faster installation (using post rammer) and with steel, longer post life |
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NUCOR™ steel posts are one third the weight and 16 times smaller in area than timber posts - which means easier handling and transport |
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High tensile galvanised NUCOR™ steel post designed for easier after-impact repair of system |
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Environmentally friendly - manufactured using recycled steel, no timber treatment by-product leaching into soil |
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Uses standard highway rail and fixings |
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Can be used as a median or roadside barrier |
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NUCOR™ steel posts designed to split on impact to avoid the guardrail tearing and reduce the incidence of wheel snagging |
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Approximately one post installed per minute possible using post rammer (dependent on operator) |
Specifications:
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Tested and approved to NCHRP 350 TL3 and TL4 |
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Listed in NZTA M23 specification |
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Post weight: 14.78kg |
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Post length: 1980mm |
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Height: 0.82m |
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Width: 0.61m |
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Post footprint: 0.061m² |
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System deflection is 600 - 900mm for median and roadside applications |
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No blockouts required |
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Standard highway rail and fixings |
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All components hot dip galvanized |
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Post high tensile steel |
Standards and Approvals
The system has been tested to the guidelines in NCHRP 350 for a median and roadside longitudinal barrier and when correctly installed and maintained is capable of stopping, containing or redirecting an errant vehicle in a safe manner under NCHRP 350 impact conditions. Certified to NCHRP Report 350 - Test level 4. Click here (PDF 447 KB) for FHWA TL4 approval letter for Nu-Guard 31™
Nu-Guard™ 31 Steel Guardrail Plastic Post Cap
The Nu-Guard™ 31 Steel Guardrail Plastic Post Caps are an optional accessory for all Nu-Guard™ 31 barriers. When impacted the Nu-Guard™ 31 height will change due to the post bolt being able to move in the slot on the back of the post. This feature of the system requires that the top of the post be approximately 25mm higher than the top of the rail after correct installation. To improve safety to pedestrians and cyclists or purely for aesthetic purposes, the plastic post caps are a good way to protect the exposed steel post. The plastic post caps will fit either the Nu-Guard™ 31 ‘roadside’ or ‘median’ barrier.
To view images of the Nu-Guard™ 31 Steel Guardrail Plastic Post Cap, Click here.
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