Abstract: This invention relates to a precast concrete wall consisting of a plurality of precast concrete, retaining wall segments used as a retaining wall, used to buttress against earth forces, used to abate noises, and a method of constructing such a wall. The wall can be economically constructed from the precast wall segments which are adapted to be easily and rapidly stacked and joined in series to save on the cost of labor and materials. Each of the wall segments is capable of being varied in height, width or length, but having a generally similar cross-section. The wall segments also have members which form a stay-in-place form when two wall segments are placed end to end. Cast-in-place concrete is poured into the form and, upon hardening, becomes an integral structural support column for the wall.

Abstract: This invention relates to both a concrete wall having a series of slanted deflection surfaces to spread the force of impacting vehicles, to buttress against earth forces, and to abate noises and to a method of constructing such a wall. The wall can be economically constructed from precast concrete elements which are adapted to be easily and rapidly stacked and joined in series to save on the cost of labor and materials. The wall is comprised of a series of panels which are stable and self-supporting when placed on a prepared foundation due to the Z-shape of the panels. Stable connection between the panels is provided by cast-in-place concrete, structural support columns. The legs of the Z-shaped panels form a stay-in-place form for the cast-in-place concrete when two Z-shaped panels are placed end to end. The cast-in-place concrete hardens and becomes integral structural support columns for the wall.

Abstract: This invention relates to a combination precast concrete traffic barrier element and a precast C-shaped retaining wall, and a method of constructing a traffic barrier using the element on the vertical face of the retaining wall. The barrier element is a profiled reinforced block of concrete having a bottom surface with a longitudinally extending channel therein. The traffic barrier element is supported on the retaining wall. U-shaped anchoring bars project from an interior portion of the traffic barrier element and from the top surface of the retaining wall to form an oval keyway the length of the longitudinal channel. A locking bar arrangement is inserted through the keyway in a locking relationship with the U-shaped anchoring bars. Concrete is then injected throughout the longitudinal channel and allowed to harden, thus providing a sealed and locked joint.

Abstract: This invention relates to both concrete wall having a series of slanted deflection surfaces to spread the force of impacting vehicles, to buttress against earth forces, and to abate noises and to a method of constructing such a wall. The wall can be economically constructed from precast concrete elements which are adapted to be easily and rapidly stacked and joined in series to save on the cost of labor and materials. The wall is comprised of a series of panels which are stable and self-supporting when placed on a prepared foundation due to the Z-shape of the panels. Stable connection between the panels is provided by cast-in-place concrete, structural support columns. The legs of the Z-shaped panels form a stay-in-place form for the cast-in-place concrete when two Z-shaped panels are placed end to end. The cast-in-place concrete hardens and becomes integral structural support columns for the wall.

Abstract: This invention relates to a pre-cast concrete traffic barrier element and a method of constructing a traffic barrier using the element on a vertical face of a retaining wall. The barrier element is a profiled reinforced block of concrete having a bottom surface with a longitudinally extending channel therein. The traffic barrier element is supported on the retaining wall with a top surface of the retaining wall being received within the channel. U-shaped anchoring bars project from an interior portion of the traffic barrier element and from the top surface of the retaining wall to form an oval keyway the length of the longitudinal channel. A locking bar arrangement is inserted through the keyway in a locking relationship with the U-shaped anchoring bars. Sealing material between the traffic barrier element and the retaining wall and between the traffic barrier element and the ground adjacent to the retaining wall on the traffic side prevents the leakage of grout and leveling of the barrier element.