A security barrier includes a plurality of barrier islands. Each barrier island has a concrete crash block having at least one pair of opposing side faces and external fixing elements on the opposing side faces. Attachments, which may be flexible attachments, extend between the external fixing elements of adjacent barrier islands of the security barrier. Each barrier island also has one or more load transfer element within the concrete crash block and, under load, the load transfer elements transfer load from the external fixing elements on one side of the concrete crash block to the external fixing elements on the opposing side of the concrete crash block.

A kerb barrier includes: a first barrier member having a length, the first barrier defining a cavity; and a second barrier member in the cavity of the first barrier that extends substantially along the length of the first barrier member, wherein a base of the second barrier member is fixable to a base of the first barrier member, wherein, upon side impact, a region of the first barrier member is configured to bend relative to the second barrier member about a first bending point defined by the first barrier member, wherein the first barrier member is configured to act on the second barrier member such that the region of the first barrier member and a region of the second barrier member are configured to bend about a second bending point defined by the second barrier member, wherein the second bending point is spaced apart from the first bending point.

A road barrier transfer machine includes an improved capstan control system that reduces unwanted migration of road barrier spans without requiring inaccurate visual observations and reliance on outdated scripts. The barrier transfer machine includes a moveable chassis, an entry snout, an exit snout, a conveyor system, a capstan system, and the capstan control system. The capstan control system automatically operates the capstan system or provides instructions to an operator of the machine to maintain the tension and compression of a road barrier span within desired ranges to reduce unwanted migration of the span.

The present invention relates to a barrier element to block traffic and/or as a security precaution, comprising: an elongated casing with two opposing longitudinal side walls and an upper wall; at least one casing support structure; and supports for resting on the ground/surface connected to the lower side of the elongate casing, wherein in the elongate casing a ballast compartment is incorporated that has a closed top, closed sides and an open bottom. The present invention also relates to a method for making ready for use of such a barrier element.

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.

A glare screen system comprises a number of glare screen units arranged in an end-to-end manner. Each glare screen unit comprises a number of upright paddles integrally formed with a horizontal rail. The paddles are tapered and hollow, allowing the glare screen unit to be nested on top of another one of the glare screen units. In addition, each glare screen unit comprises a receiver portion and an attachment portion at opposite ends. The receiver portion of one unit is configured to engage with the attachment portion of another unit to form the glare screen system.

A structural barrier and energy absorbing device comprises a plurality of structural elements. The structural element alone or in a plurality may serve as a traversal impediment or energy absorbing device, such as a pedestrian barrier, vehicular barrier, anti-tank obstacle, ballistic barrier, or the like. The structural element may be a tetrapod such that it comprises an element body having four extension portions that extend outwardly from the interior center to a distal end, such that the structural element maintains an identical orientation and a low center of gravity in each of four resting positions. The structural element may be a solid-state structural element comprised of a particular material or a portable and collapsible structural element wherein the element body comprises an outer skin defining an interior void space, such that during set-up or installation the interior void space may be filled with a filler substance onsite.

Road safety barrier comprising: concrete bottom parts (1); concrete top parts (2) coupled on the bottom parts (1), and attaching means (3, 31) of the successive top parts (2) at their opposite ends. The bottom parts (1) have an upper surface provided with a longitudinal channel (11) for coupling in the longitudinal direction and with the possibility of limited vertical displacement of a longitudinal extension (21) protruding from a lower surface of the top parts (2); the channel (11) and the extension (21) have similar cross-sections and dimensions calculated so that the top part performs a lateral rotation of a determined amplitude, in the event of a vehicle impact, and absorbs a significant part of its kinetic energy.

A new type of demountable modular panel and its respective assembly process, intended for use on motor sports circuits, particularly on urban circuits. It has the advantage of being easily assembled and disassembled, allowing easy access to any point on the circuit. It can be used on metal barriers or on concrete bases fitted with “U” section metal guides at their ends, into which a metal support profile is inserted. Above the base, a fencing panel is placed, with a top section included at 45°. A tubular metal shaft is introduced vertically through metal connectors and tightly clamped in rectangular retention brackets. The attachment of the panel is reinforced by “L” section metal brackets and respective bolts with washers.

Systems and methods for the continuous slip form construction of concrete barriers over support cages. A tube feeder of a slip form construction system can include angled tubes that can direct reinforcing bars into a concrete barrier and also provide space between the tubes for insertion of a support cage through the system and into the concrete barrier.