EXPANSION JOINT AND METHODS OF PREPARING SAME

摘要

An expansion joint formed within a channel between two adjacent road surfaces and a method of preparing an expansion joint. The joint is formed within a channel having sides each extending from an adjacent road surface to a bottom side of the channel. The joint construction may include at least one layer of a binder covering at least a portion of the sides of the channel, and one or more layers of aggregate chips and the binder covering the at least one binder layer so as to fill the channel to at least the top of the road surface. The cumulative surface area of the two channel sides may be greater than the cumulative surface area of two channel sides each planar and perpendicular to the bottom. The joint construction may include a plate on the bottom side of the channel. The joint construction may include a flexible sheeting between the plate and the at least one binder layer.

主权项

1. A method for preparing an expansion joint within a channel between two adjacent road surfaces, with a gap at the channel bottom, the method comprising: preparing the channel with two non-parallel sides, each side extending from an adjacent road surface to a bottom side of the channel at an angle of 100 to 170 degrees from the channel bottom;
placing a backer rod within the gap; filling at least a portion of the gap with a binder; placing a plate over the gap; positioning flexible material over the plate and extending beyond the plate in each direction, wherein opposing ends of the flexible material contact the channel bottom; covering the flexible material, the channel bottom and at least a portion of the sides of the channel with at least one layer of aggregate chips and a binder so as to fill the channel to at least the top of the road surface; wherein the flexible material is comprised of a heat resistant and pliable plastic.