Pavement resurfacing equipment and method of application of polymer emulsion
First Claim
1. A flexible sled for applying a liquid emulsion onto a pavement surface comprising:
- a) a rigid frame assembly adapted to be towed along a pavement surface in a first direction of travel;
b) said frame assembly having a plurality of elongated members forming an emulsion receiving area bounded by said elongated members;
c) said elongated members including a pair of side members extending parallel to said first direction of travel and forming a first side member and a second side member;
d) each of said first and second side members having end blades connected thereto for contacting the pavement surface and for supporting a respective side member; and
,e) said end blades being formed of brushesf) a front frame member extending between and connecting said first and second side members;
g) a middle frame member spaced from said front frame member and extending between said first and second side members; and
h) a rear flexible frame member spaced from both said front and said middle frame member;
with a spring steel center section to allow the frame to follow the contour of the pavement surface; and
,i) said front frame member includes a squeegee extending downwardly therefrom for preventing said liquid emulsion from flowing under said front frame member and said middle frame member and rear frame member each having a squeegee extending downwardly therefrom for applying said emulsion to the pavement surface when said sled is in motion.
1 Assignment
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Accused Products
Abstract
One embodiment of the invention relates to a flexible sled that conforms to the contour of the pavement for applying a liquid emulsion onto a pavement surface comprising a rigid frame with flexible squeegee assembly adapted to be towed along a pavement surface. Another embodiment of the invention includes a hopper assembly for distributing aggregate. Another embodiment of the invention includes a sled for repairing ruts in wheel lanes of a road. Another aspect of the invention is a polymer emulsion composition having a high coefficient of friction comprising a mixture of polymer resin blended with a mixture of cement and angular sand aggregate and titanium dioxide to provide a solar reflectance index number that ranges from 0.30 to 0.38 and a friction number in the range of 45 to 55. Another aspect of the invention is a polymer emulsion for sealing open graded bituminous asphalt comprising a mixture of polymer resin blended with a mixture of cement and angular sand aggregate which will provide a friction number in the range of 45 to 55 when the ratio of aggregate to cement is 70/30.
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Citations
16 Claims
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1. A flexible sled for applying a liquid emulsion onto a pavement surface comprising:
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a) a rigid frame assembly adapted to be towed along a pavement surface in a first direction of travel; b) said frame assembly having a plurality of elongated members forming an emulsion receiving area bounded by said elongated members; c) said elongated members including a pair of side members extending parallel to said first direction of travel and forming a first side member and a second side member; d) each of said first and second side members having end blades connected thereto for contacting the pavement surface and for supporting a respective side member; and
,e) said end blades being formed of brushes f) a front frame member extending between and connecting said first and second side members; g) a middle frame member spaced from said front frame member and extending between said first and second side members; and h) a rear flexible frame member spaced from both said front and said middle frame member;
with a spring steel center section to allow the frame to follow the contour of the pavement surface; and
,i) said front frame member includes a squeegee extending downwardly therefrom for preventing said liquid emulsion from flowing under said front frame member and said middle frame member and rear frame member each having a squeegee extending downwardly therefrom for applying said emulsion to the pavement surface when said sled is in motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of applying a polymer emulsion to a pavement surface using a flexible sled, comprising:
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a) attaching to a tow vehicle a flexible sled having a rigid frame assembly adapted to be towed along a pavement surface in a first direction of travel, said frame assembly having a plurality of elongated members forming an emulsion receiving area bounded by said elongated members, a pair of said elongated members extending parallel to said first direction of travel and forming a first side member and a second side member, each of said first and second side members having end blades connected thereto for contacting the pavement surface and for supporting said its respective side member, said end blades being formed of brushes and a front frame member extending between and connecting said first and second side members, a middle frame member spaced from said front frame member and extending between said first and second side members, a rear flexible frame member spaced from both said front and said middle frame member;
with a spring steel center section to allow the frame to follow the contour of the surface, said front frame member includes a squeegee extending downwardly therefrom for preventing said liquid emulsion from flowing under said front frame member and said middle frame member and rear frame member each having a squeegee extending downwardly therefrom for applying said emulsion to the pavement when said sled is in motion;b) applying a predetermined quantity of polymer emulsion at a predetermined rate to an area of pavement bounded by said front frame member, said side frame members and said middle frame member; c) towing said sled over a pavement surface wherein said polymer emulsion flows under said middle frame member and said rear frame member to apply a thin coating of polymer emulsion to the pavement surface; and
,d) accommodating the variation of a pavement surface by flexing of said spring steel center section to apply a substantially uniform thickness of said polymer emulsion; and
,e) allowing said thin coating of polymer emulsion to dry. - View Dependent Claims (13, 14)
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15. A polymer emulsion composition pavement sealant for application to pavement surfaces for creating a high coefficient of friction comprising:
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a) a mixture of polymer resin blended with a mixture of cement and angular sand aggregate and titanium dioxide to provide a solar reflectance index number that ranges from 0.30 to 0.38 and a friction number in the range of 45 to 55; and
,b) wherein said titanium dioxide retards bacterial growth on said pavement. - View Dependent Claims (16)
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Specification