The studs will be made of high-quality metal, plastic or similar materials.
Resistance and the reflective material must be of the prismatic reflector type. The area
Retroreflective will be molded with methyl methacrylate material, modified for impact,
Polycarbonate or high resistance plastic. The marks must also comply with the
Following general requirements:
Compressive strength
The tested mark must resist a load of two thousand seven hundred and twenty-seven kilograms
(2, 727 kg), without breaking or having a deformation greater than three millimeters with three
Tenths (3.3 mm. ).
ITEM 31: PROV AND PLACEMENT OF STUDS (CAT EYES)
UNIT: Piece
CODE: GM-O-ACC-022
1. DESCRIPTION
This work consists of the supply and placement of colored retroreflective studs
Unidirectional or bidirectional white or yellow on the asphalt surface, using
Adhesives or thermoplastic resins suitable to resist automotive traffic without
Release, in accordance with this specification, the project plans and the
Supervisor's instructions.
2. MATERIALS, TOOLS AND EQUIPMENT
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Color
The studs will be white or yellow. Project documents indicate color
To be used or at the instruction of the construction supervisor.
White
White studs are more common, they indicate the side line of the road or markings
Between lanes.
White markers can be bi-directional when used in transit systems.
Inverted for access to or exit from a city at times of intense traffic.
Yellow
Yellow reflective studs indicate the location of the dual carriageway axis.
Transit. These should be bidirectional for a better effect.