Trinity Highway QuadGuard Elite M10, Product Description Assembly Manual

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TrinityHighway.com 19 Revision C September 2021
Foundation/Anchoring
Warning:
It is the responsibility of the local DOT or appropriate highway authority
to ensure that this assembly conforms to the AASHTO Roadside Design Guide.
Warning:
It is the responsibility of the installer to ensure that your assembly
procedure meets all appropriate Occupational Safety and Health Administration
(“OSHA”) and local standards.
Asphalt Installations
Systems with a Tension-Strut Backup may be temporarily installed in construction zones on
asphalt. Assemblies on
Asphalt Concrete (“A.C.”) must provide a minimum of 3” [76 mm] layer
of asphalt over a minimum of 3” [76 mm] layer of Portland Cement Concrete (“P.C.C.”) ,
6” [152 mm] layer of asphalt over 6” [152 mm] layer of subbase, or 8” [200 mm] layer of asphalt
with no subbase.
Important:
Only 18” [460 mm] threaded rods, utilizing Trinity Highway approved
adhesive, can be used with asphalt foundations (p. 20). Contact Trinity Highway
for a complete list of approved adhesives (p. 3).
Concrete Installations
For concrete installations, the QuadGuard
®
Elite M10 system should be installed only on an
existing or freshly placed and cured concrete base (4000 psi [28 MPa] minimum). Orientation of
the concrete base and the attenuator must comply with the project plans or as otherwise
determined by the resident project engineer or appropriate highway authority.
Recommended dimension and reinforcement specifications for new concrete pads can be found
on the standard drawings.
The QuadGuard ® Elite M10 may be installed on any of the following foundations using the
specified anchorage:
Foundation A: Reinforced Concrete Pad or Roadway
Foundation: 6” [152 mm] minimum depth P.C.C.
Anchorage: Approved adhesive with 7” [ 180 mm] studs at 5 1/2” [140 mm] embedment
Foundation B: Asphalt over P.C.C.
Foundation: 3” [76 mm] minimum asphalt concrete (A.C.) over 3” [76 mm] minimum P.C.C.
Anchorage: Length of anchor required is 18” [460 mm] studs at 16 1/2” [420 mm] embedment
Foundation C: Asphalt over Subbase
Foundation: 6” [152 mm] minimum A.C. over 6” [152 mm] minimum Compacted Subbase (C.S.)
Anchorage: Approved adhesive with 18” [460 mm] studs at 16 1/2” [420 mm] embedment
Foundation D: Asphalt Only
Foundation: 8” [200 mm] minimum A.C.
Anchorage: Approved adhesive with 18” [460 mm] studs at 16 1/2” [420 mm] embedment