A modular expansion joint system with equidistance control. The modular expansion joint system includes transverse vehicle load bearing members which are positioned in a gap defined between adjacent spaced-apart structural members, support members positioned below the transverse vehicle load bearing members and extending across the expansion joint gap between the adjacent structural members, means positioned within the structural members for controlling movement of the support members, and means for controlling the spacing between the transverse vehicle load bearing members. The means for controlling the distance between the transverse vehicle load bearing members comprises a non-elastomeric compressive member, such as at least one coil spring which, which according to certain illustrative embodiments, maintains a substantially equal distance between transverse vehicle load bearing members.

A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.

A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.

Various embodiments provide a concrete slab joint stabilizer including an expandable housing including a cylinder defining a slit running along its longitudinal length, the expandable housing having a housing axis extending longitudinally there through, and an expander configured to expand the expandable housing in directions perpendicular to the housing axis. The concrete slab joint stabilizer is configured to limit relative vertical displacement between two adjacent concrete slabs.

The present invention relates to a expansion joint to bridge an expansion gap between two parts of concrete slabs used in floor construction, especially in the manufacture of concrete floors such as for example in industrial floors. Such expansion joints are evidently required to take up the inevitable shrinkage process of the concrete and to assure that the floor elements can expand or contract such as for example occur by temperature fluctuations and resulting in a horizontal displacement of the floor panels vis-?-vis one another.

The present invention relates to a expansion joint to bridge an expansion gap between two parts of concrete slabs used in floor construction, especially in the manufacture of concrete floors such as for example in industrial floors. Such expansion joints are evidently required to take up the inevitable shrinkage process of the concrete and to assure that the floor elements can expand or contract such as for example occur by temperature fluctuations and resulting in a horizontal displacement of the floor panels vis-?-vis one another.

A pavement slab includes a top surface, a bottom surface opposite the top surface, first and second longitudinal side surfaces, each of which extends from the top surface to the bottom surface, and first and second transverse side surfaces, each of which extends from the top surface to the bottom surface. At least one transverse tube is positioned intermediate the top surface and the bottom surface and extends from an inlet at the first longitudinal side surface to a second end intermediate the first and second longitudinal side surfaces. The at least one transverse tube is sized and shaped to convey a binder material. At least one vertical tube extends from each of the at least one transverse tube to the bottom surface. The at least one vertical tube is sized and shaped to convey the binder material.

A pavement slab includes a top surface, a bottom surface opposite the top surface, first and second longitudinal side surfaces, each of which extends from the top surface to the bottom surface, and first and second transverse side surfaces, each of which extends from the top surface to the bottom surface. At least one transverse tube is positioned intermediate the top surface and the bottom surface and extends from an inlet at the first longitudinal side surface to a second end intermediate the first and second longitudinal side surfaces. The at least one transverse tube is sized and shaped to convey a binder material. At least one vertical tube extends from each of the at least one transverse tube to the bottom surface. The at least one vertical tube is sized and shaped to convey the binder material.

An illustrative example embodiment of a concrete expansion joint insert includes a body having two ends, two longitudinal edges between the ends and two side surfaces between the longitudinal edges. The body has a length, a width and a thickness. The length is greater than the width and the width is greater than the thickness. The width and thickness correspond to dimensions of the ends of the body. The length and the thickness correspond to dimensions of the longitudinal edges. The length and the width correspond to dimensions of the side surfaces. At least a portion of the body has a first surface characteristic and at least one of the longitudinal edges has a second surface characteristic that is different than the first surface characterization. The second surface characteristic comprises at least one of a color, a texture and a profile.

An illustrative example embodiment of a concrete expansion joint insert includes a body having two ends, two longitudinal edges between the ends and two side surfaces between the longitudinal edges. The body has a length, a width and a thickness. The length is greater than the width and the width is greater than the thickness. The width and thickness correspond to dimensions of the ends of the body. The length and the thickness correspond to dimensions of the longitudinal edges. The length and the width correspond to dimensions of the side surfaces. At least a portion of the body has a first surface characteristic and at least one of the longitudinal edges has a second surface characteristic that is different than the first surface characterization. The second surface characteristic comprises at least one of a color, a texture and a profile.