The present invention refers to a mechanically activated cementitious composite for stopping the impact of firearms, which involved the designing of mixes of Portland Composite Cement PCC mechanically activated through high energy mechanical milling (HEM) with other ingredients, such as: Ordinary PCC Cement, fine sand, fibers, and polymeric additives, among other compounds, to prepare high-performance composite walls capable of stopping several calibers up to type 50 (typically loaded in Barret rifles). In accordance with Mexican and US Standards for ballistic tests, which entail the approval of the concrete ballistic-resistant wall as long as it resists one impact with a 50 caliber Barret, the present invention allows the construction of composite walls' (with dimensions of 404015 cm) with mechanically activated cement and performance complying with the standards.

The present invention refers to a mechanically activated cementitious composite for stopping the impact of firearms, which involved the designing of mixes of Portland Composite Cement PCC mechanically activated through high energy mechanical milling (HEM) with other ingredients, such as: Ordinary PCC Cement, fine sand, fibers, and polymeric additives, among other compounds, to prepare high-performance composite walls capable of stopping several calibers up to type 50 (typically loaded in Barret rifles). In accordance with Mexican and US Standards for ballistic tests, which entail the approval of the concrete ballistic-resistant wall as long as it resists one impact with a 50 caliber Barret, the present invention allows the construction of composite walls' (with dimensions of 404015 cm) with mechanically activated cement and performance complying with the standards.

In one embodiment, a flashing system is provided for fortifying seams between a first blast, ballistic, and forced entry resistant shelter module and a second blast, ballistic, and forced entry resistant shelter module. The system includes a first side flashing assembly for fortifying a first side seam between the first blast, ballistic, and forced entry resistant shelter module and the second blast, ballistic, and forced entry resistant shelter module, a top flashing assembly for fortifying a top seam between the first blast, ballistic, and forced entry resistant shelter module and the second blast, ballistic, and forced entry resistant shelter module, and a second side flashing assembly for fortifying a second side seam between the first blast, ballistic, and forced entry resistant shelter module and the second blast, ballistic, and forced entry resistant shelter module. The system can also include fastening assemblies for coupling the flashing assemblies with the blast, ballistic, and forced entry resistant shelter modules.

In one embodiment, a flashing system is provided for fortifying seams between a first blast, ballistic, and forced entry resistant shelter module and a second blast, ballistic, and forced entry resistant shelter module. The system includes a first side flashing assembly for fortifying a first side seam between the first blast, ballistic, and forced entry resistant shelter module and the second blast, ballistic, and forced entry resistant shelter module, a top flashing assembly for fortifying a top seam between the first blast, ballistic, and forced entry resistant shelter module and the second blast, ballistic, and forced entry resistant shelter module, and a second side flashing assembly for fortifying a second side seam between the first blast, ballistic, and forced entry resistant shelter module and the second blast, ballistic, and forced entry resistant shelter module. The system can also include fastening assemblies for coupling the flashing assemblies with the blast, ballistic, and forced entry resistant shelter modules.

The invention discloses a stealth method by use of three-dimensional spraying. The method comprises the following steps of: firstly photographing an object target on the ground and then archiving photos to obtain three-dimensional spraying data fused with the surrounding geographical environment through computer simulation design; producing corresponding three-dimensional spraying templates according to the three-dimensional spraying data; producing desired three-dimensional spraying equipment; producing special spraying coating for three-dimensional spraying; spraying the special three-dimensional spraying coating on surfaces of the object target on the ground by means of the three-dimensional spraying equipment according to the three-dimensional spraying data; and erecting and deploying electromagnetic jammers and GPS jammers around the object target on the ground so that space, sky and ground electromagnetic detection equipment and GPS positioning detection equipment of the attacker are effectively interfered and suppressed in the full frequency band.

The invention discloses a stealth method by use of three-dimensional spraying. The method comprises the following steps of: firstly photographing an object target on the ground and then archiving photos to obtain three-dimensional spraying data fused with the surrounding geographical environment through computer simulation design; producing corresponding three-dimensional spraying templates according to the three-dimensional spraying data; producing desired three-dimensional spraying equipment; producing special spraying coating for three-dimensional spraying; spraying the special three-dimensional spraying coating on surfaces of the object target on the ground by means of the three-dimensional spraying equipment according to the three-dimensional spraying data; and erecting and deploying electromagnetic jammers and GPS jammers around the object target on the ground so that space, sky and ground electromagnetic detection equipment and GPS positioning detection equipment of the attacker are effectively interfered and suppressed in the full frequency band.

A bullet projectile resistant drywall structure for building a rifle bullet resistant separation wall, the drywall structure comprising a plurality of drywall profiles arranged in a manner so as to form a drywall sub structure capable of attaching building boards thereto, each drywall profile having a base portion and connected thereto parallel extending flange portions with an outer site capable of fixing building boards thereto by screws; a plurality of inner gypsum fiber boards arranged between the drywall profiles so as to extend between adjacent base portions of the drywall profiles and a plurality of outer gypsum fiber boards respectively attached to both outer sides of the parallel extending flange portions.

A bullet projectile resistant drywall structure for building a rifle bullet resistant separation wall, the drywall structure comprising a plurality of drywall profiles arranged in a manner so as to form a drywall sub structure capable of attaching building boards thereto, each drywall profile having a base portion and connected thereto parallel extending flange portions with an outer site capable of fixing building boards thereto by screws; a plurality of inner gypsum fiber boards arranged between the drywall profiles so as to extend between adjacent base portions of the drywall profiles and a plurality of outer gypsum fiber boards respectively attached to both outer sides of the parallel extending flange portions.

A modular shelter system includes a floor panel having a first curved surface along a lateral edge on a top side of the floor panel and a first inside surface located inside of the first curved surface. The modular shelter system additionally includes a wall panel having a second curved surface along a bottom end of the wall panel, wherein the second curved surface is configured to rotate relative to the first curved surface, and wherein the second curved surface is configured to mate with the first curved surface. The wall panel further has a second inside surface located inside of the second curved surface, wherein the second inside surface is configured to mate with the first inside surface when the wall panel is erected over the floor panel.

The present invention relates to an anti-explosion protection system based on containment barriers, which allows energy to be absorbed using a damping system formed by two walls that are connected by means of oscillators. According to the invention, the front wall (1) is supported by a system of bearings or a sliding surface (4) allowing the front wall to move relative to the second wall (2). The front wall receives the pressure wave and, owing to the movement of the mass of said front wall (1), a reduced pressure is transmitted to the rear wall (2), which is protected by the system. In said barrier, a large part of the energy from the explosion is transformed into the kinetic energy of an oscillating mass.