A concrete slab system includes a bed of a first concrete having a top surface and edge surfaces. The bed's top surface has shrinkage cracks and induced cracks. The widths of the induced cracks are greater than widths of the shrinkage cracks. Non-concrete material is disposed on the bed's top surface and on each of the bed's edge surfaces. A second concrete covers the non-concrete material and the bed. The second concrete has stretchable fibers mixed therein.

A concrete slab system includes a bed of a first concrete having a top surface and edge surfaces. The bed's top surface has shrinkage cracks and induced cracks. The widths of the induced cracks are greater than widths of the shrinkage cracks. Non-concrete material is disposed on the bed's top surface and on each of the bed's edge surfaces. A second concrete covers the non-concrete material and the bed. The second concrete has stretchable fibers mixed therein.

A coated article which includes a cement fiberboard substrate and a radiation-curable coating system applied to the substrate. The coating system includes one or more olefinic compounds and one or more PVC dispersion resins, and may be provided in the form of one or more coating compositions that may be applied in one or more layers.

The present invention relates to a coating composition and method of manufacturing said coating composition. The coating composition is a two-component coating composition for construction surfaces. The present coating composition is effectively bonded to the surface without an additional application of intermediate layer overcoming the existing problems associated with conventional concrete surface treatment methods.

Copolymer dispersions containing polyamide segments in aqueous media form binders for coatings for various industrial and construction materials. The copolymers have a high percentage of amide linkages. The copolymers are linked into higher molecular weight species by reactions with polyisocyanates (which forms urea linkages if the other reactant is an amine or a urethane linkage if the other reactant is a hydroxyl group).

Embodiments of the invention provide body armor composite and methods of fabrication. The body armor composite can include at least one strike-face layer, at least one strike-face reinforcement layer, and at least one catchment layer. Some embodiments include body armor composite with a bump guard layer, and a back-face reduction layer. In some embodiments, the fabrication method includes bonding multiple layers to form an armor composite. Some embodiments include an armor production tool including a housing at least two housing portions which form a substantially air-tight chamber when closed. The tool can include a lower flexible membrane forming at least a portion of a mold, and an upper flexible membrane capable of engaging the lower flexible membrane. The tool can include a pressure port for pressurizing the chamber and to move portions of the mold towards each other, and a locking mechanism for locking the two housing portions.

Embodiments of the invention provide body armor composite and methods of fabrication. The body armor composite can include at least one strike-face layer, at least one strike-face reinforcement layer, and at least one catchment layer. Some embodiments include body armor composite with a bump guard layer, and a back-face reduction layer. In some embodiments, the fabrication method includes bonding multiple layers to form an armor composite. Some embodiments include an armor production tool including a housing at least two housing portions which form a substantially air-tight chamber when closed. The tool can include a lower flexible membrane forming at least a portion of a mold, and an upper flexible membrane capable of engaging the lower flexible membrane. The tool can include a pressure port for pressurizing the chamber and to move portions of the mold towards each other, and a locking mechanism for locking the two housing portions.

The present invention relates to a silicone composition, a substrate, such as cement, coated with the silicone composition, together with a process for providing a cross-linked silicone coated substrate, the silicone composition comprising at least: (A) an organopolysiloxane comprising an organocyclosiloxane; (B) an organosilane comprising at least two cross-blinking groups, X; and (C) an organosilicone resin comprising at least two cross-linking groups, X; wherein at least one of the organosilane (B) and the organosilicone resin (C) comprises at least three cross-linking groups.

Fiber tows including a heat-activatable sizing are described. The sizing compositions have a first modulus at 25° C. of at least 150 megapascals (MPa) and no greater than 400 MPa; and a second modulus of 100,000 pascals (Pa) at a temperature of no greater than 160° C. Methods of preparing articles from such sized fiber tows and the articles comprising such sized fiber tows, including unidirectional and bidirectional constructions are also described.

A method of treating a carbon structure is provided. The method may include infiltrating the carbon structure with a silicon compound preparation, heat treating the carbon structure to form a plurality of silicon carbide whiskers in the carbon structure, and/or densifying the carbon structure.