Disclosed is a concrete block, preferably made of fiber-reinforced concrete, including a body and anchor intended for lifting the block. The anchor is secured to the body and arranged in blind cavities without protruding out of these cavities, particularly arranged at the level of one of the faces of the body of the block such as the upper face of the block when the block is in the installed position on the ground. The body includes reservations and/or attachment/association components, the reservations and the attachment/association component being intended for attaching, preferably removably, or associating, technical equipment that is to be associated with the block. The concrete block is intended to constitute an access-denial bollard and, as a secondary function, a block for supporting and to which to fix technical equipment.

A concrete-based composite material including iron rich particles is characterized by an iron content greater than 17% by weight of the composite material, can include iron particles which are an iron by-product recovered from iron slag material, can include iron rich particles which have an iron content of at least 60% by weight of the iron rich particles, and/or can include iron particles having a particle size distribution in the range of about −⅜ inch to +60 mesh or in the range of about −20 mesh to about +60 mesh. The composite material can include ground granulated blast furnace slag as a portion of the cementitious component of the composite material. A method of forming a structural element from the composite material includes casting the structural element such that the structural element is characterized by a ballistic performance of Level 10 as defined by Underwriters Laboratories standard UL752.

An example barrier can be switchable between an at least partially collapsed state and at least partially expanded state (e.g., a deployed state). For example, the barrier can be formed from a continuous sheet and a plurality of rigid sections (e.g., rigid panels) attached or incorporated into the continuous sheet. The barrier can also include a plurality of hinges, such as hinge lines, between the panels that are formed from the continuous sheet. The hinges enable the barrier to be rigid foldable (e.g., the hinges can fold and unfold while the rigid sections remain stiff and rigid) between the expanded and collapsed states.

An example barrier can be switchable between an at least partially collapsed state and at least partially expanded state (e.g., a deployed state). For example, the barrier can be formed from a continuous sheet and a plurality of rigid sections (e.g., rigid panels) attached or incorporated into the continuous sheet. The barrier can also include a plurality of hinges, such as hinge lines, between the panels that are formed from the continuous sheet. The hinges enable the barrier to be rigid foldable (e.g., the hinges can fold and unfold while the rigid sections remain stiff and rigid) between the expanded and collapsed states.

Temporary barrier fencing has at least one fence panel having a bracing post at one end which engages a support foot and which comprises a brace which braces an adjacent post and a locking post at an opposite end which keys the foot depending on the orientation of the panel with respect to the foot thereby being intrinsically secure against forced entry.

An apparatus for training athletes having two supporting structures. The first structure has a base that can rest on a surface and walls that extend upward from the base to an upper end, defining an interior space. The walls incorporate a bar connector above the base designed to connect to and support one end of a bar. The walls have supporting elements above the base and below the upper end of the walls. The second structure has walls that are configured so that the lower end of the walls can engage the supporting elements of the first structure so that the second structure is supported by the first structure above the supporting elements. The second structure has a bar connector at the same height as the height of the bar connector of the first structure configured to connect to and support the other end of the bar.

Embodiments of the disclosure provide a safety rail. The safety rail may include a body disposed on first and second adjustable boots. The first and second adjustable boots may be adapted to secure the safety rail to an excavation support structure. The body may include a lower rail connected to the first and second adjustable boots.

Safety markers are used to monitor the security situation surrounding a construction site. A position data set indicates a current position of a safety marker. A reference image data set indicates an initial state of the security situation, and a control image data set indicates a current state of the security situation. The position data set, the reference image data set and the control image data set are transmitted to a central processing unit. A correction data set is determined by evaluating the reference image data set and the control image data set. The position data set is corrected using the correction data set to generate a corrected position data set. The current position of the safety marker as indicated by the corrected position data set is compared to a target position of the safety marker. An alarm signal is generated if the current position deviates from the target position.

The invention described herein is a temporary safety barrier system comprising a vertical post, where a base plate is pivotally attached to the bottom distal end of the vertical post via a hinge, where an at least one horizontal socket is located in the top half of the vertical post, where an angled brace first end is pivotally secured to the base plate and an angled brace second end is configured to removably connect to the vertical post; and where an at least one horizontal safety rail is removably secured within the at least one horizontal socket.

A barrier cable coupler for coupling two lengths of barrier cable comprises a coupler body including a threaded inner surface, a first end, and a second end; a fixed retaining collar having an outer surface and being retained to the first end of the coupler body, the fixed retaining collar including a tapered inner surface; one or more fixed end wedges positioned within the tapered inner surface of the fixed retaining collar; a tensioning retaining collar having an outer surface, the tensioning retaining collar positioned at least partially within the second end of the coupler body and including a tapered inner surface; one or more tensioning end wedges positioned within the tapered inner surface of the tensioning retaining collar; and a tensioning nut including a threaded outer surface engaging the threaded inner surface of the second end of the coupler body and retaining the tensioning retaining collar therein.