In some embodiments, a building block includes alignment elements that interlink with a similar block with a positional offset. For example, the positional offset may be linear and/or rotational. For example, the second cinder block may be rotated with respect to the first block on which it is supports. Optionally, protrusions from the top of the block are positioned to interlink to the vertical slots at a fixed offset between the blocks. Optionally, the protrusions are formed by channels on a mold and/or a mold head. In some embodiments, a structure may be built stacked blocks. Optionally, a decorative face is configured to form a continuous decorated surface across offset blocks. In some embodiments a building block includes a calibration feature. For example, the block may include a ridge on the top of the block that may be shaved and/or ground to adjust the height of the block.

A wall panel for a quick assemble wall system may include a first upright post and a second upright post. The wall panel may also include a lower stretcher for connecting the first upright post to the second upright post and an upper stretcher for connecting the first upright post to the second upright post. The wall panel may include at least one frame for placement within the first vertical post, the second vertical post, the lower stretcher, and the upper stretcher. The wall panel may include a first retractable latch located on the at least one frame, the first retractable latch adapted to engage at least one of the first upright post, second upright post, lower stretcher, or upper stretcher. A frame for a quick assemble wall system and a method of assembling a quick assemble wall system are also described.

A security barrier is presented for preventing unauthorized persons or vehicles from easily crossing a border. In one preferred embodiment, the security barrier is suitable for installation in a waterway and comprises: (1) a plurality of piles, each pile having a bottom end embedded into the earth and a top end extending vertically upward; (2) an open security grid juxtaposed between and secured by the piles, wherein the grid preferably has a bottom end that extends downward below the surface between the piles toward the earth; (3) at least one rigid wall panel also juxtaposed between and secured by the piles on top of the open security grid, thereby forming a security barrier that allows water, air, aquatic life, and birds to pass through the barrier, but restricts the movement of humans and vehicles across the barrier.

A security barrier is presented for preventing unauthorized persons or vehicles from easily crossing a border. In one preferred embodiment, the security barrier is suitable for installation in a waterway and comprises: (1) a plurality of piles, each pile having a bottom end embedded into the earth and a top end extending vertically upward; (2) an open security grid juxtaposed between and secured by the piles, wherein the grid preferably has a bottom end that extends downward below the surface between the piles toward the earth; (3) at least one rigid wall panel also juxtaposed between and secured by the piles on top of the open security grid, thereby forming a security barrier that allows water, air, aquatic life, and birds to pass through the barrier, but restricts the movement of humans and vehicles across the barrier.

Panel designed for making a wall, including a monobloc part made from concrete inside which pieces of wood are sunk, at least one through aperture being formed inside the monobloc part, the panel including at least one reinforcement element providing a bending resistance and housed inside said at least one through aperture, said at least one reinforcement element being formed by an armature coated with a hardening product including a binder.

Panel designed for making a wall, including a monobloc part made from concrete inside which pieces of wood are sunk, at least one through aperture being formed inside the monobloc part, the panel including at least one reinforcement element providing a bending resistance and housed inside said at least one through aperture, said at least one reinforcement element being formed by an armature coated with a hardening product including a binder.

A modular precast concrete structure system to form a portion of a subsurface storage basin, the system including a concrete slab having a first edge and opposite second edge, and a first concrete side wall having an outer surface extending from the first edge substantially perpendicularly to the concrete slab, and a second concrete side wall having an outer surface extending from the second edge substantially perpendicularly to the concrete slab, the outer surfaces of the first and second concrete side walls being configured to be substantially parallel, each of the first and second side walls being configured with canted inner surfaces such that the first and second side walls taper in thickness away from the slab, and a plurality of footings each configured with a footing groove along an upper surface thereof, the footing grooves configured to receive a bottom edge of at least one of the first and second side walls therein.

Precast concrete residences resist great hurricane wind forces and moderate seismic forces. The entire residential structure, excluding the slab on grade are made from plant-cast concrete panels. Foundation panel joints are designed at the center of the precast wall panels to assure proper load-distribution from the walls to the foundation. Using a precast foundation greatly increases the speed of construction. All structural elements are field-bolted together. An interior wall track design allows engineered, prefabricated interior wall panels to roll into the home and “tip up” into place without wedging between the floor and ceiling.

A plurality of wall cells rest upon an underlying cementitious foundation and form a perimeter of the vault. Each wall cell has two lateral sides with mating surfaces thereon which are of complementary undulating shape with adjacent lateral surfaces of adjacent wall cells. The wall cells have different thicknesses and widths to provide desirable wall thickness for a different portions of the oncology vault. A door assembly formed of specialized wall cells and with a pivoting door element are also included within the wall. A ceiling is provided above space inboard of the wall cells. This ceiling is formed of separate ceiling slab elements. The slabs are stacked in at least one layer. In one embodiment, multiple layers of slabs are stacked with seams between slabs of each layer offset from each other. In another embodiment, lateral sides of the slabs have a complementary undulating shape.

Adjacent concrete wall panels are connected at the vertical joint by a shear connector structure that includes a metal connector angle embedded in a corner portion of one of the panels, and one or more threaded nuts or studs are welded to a flange of the angle. A metal shear connector plate has a hole for each threaded nut or stud and elongated holes or slots for the other concrete panel. After the panels are erected and positioned, the connector plate is bolted to the studs and self-tapping concrete anchor screws are inserted into the slots and threaded into holes formed in the other panel. The studs are formed by machinery weld studs to form a bore with threads at the welded end of each stud.