Road structure – process – or apparatus – Traffic director – Attenuated lane marker type
Patent
1995-05-19
1997-09-16
Bennett, Henry A.
Road structure, process, or apparatus
Traffic director
Attenuated lane marker type
404 9, 404 12, E01F 900
Patent
active
056673353
ABSTRACT:
A fiber-reinforced raised pavement marker made of a composite material comprising an isotropic mixture of a polymeric material, reinforcing fibers and a filler material. The results of finite element analysis and composite technology have been combined to produce a pavement marker having high flexural strength and impact resistance without the need for an impact-resistant shell. Durable, high strength composite pavement markers are made by casting a homogenous mixture of chopped glass fibers and a filler material in a polymeric matrix. Placement of a retroreflective lens within the mold followed by pouring and curing the composite material results in a finished product upon release from the mold.
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Khieu Sithya S.
May David C.
Bennett Henry A.
Griswold Gary L.
Hanson Karl G.
Kirn Walter N.
Minnesota Mining and Manufacturing Commpany
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