A fabric (10, 20, 30) adapted for the reinforcement of constructions such as of roads or pavements has a fabric width W2 in a transverse direction. The fabric (10, 20, 30) comprises a carrier (12, 22, 32). The fabric further comprises reinforcement elements (14, 24, 24, 34) extending over the fabric width and being fixed or bound to the carrier (12, 22, 32). The carrier (12, 22, 32) has a carrier width W1 that is smaller than the fabric width W2 so that the reinforcement elements (14, 24, 24, 34) protrude out of the carrier (12, 22, 32). The advantage is that when two neighbouring fabrics (40, 44) overlap, it is possible to avoid a double layer of carriers.

The invention relates to a masonry reinforcement structure (100) comprising at least two assemblies (102) of grouped metal filaments, at least one positioning element (104) for positioning the assemblies (102) of grouped metal filaments in a predetermined position and a polymer coating (110) for securing the assemblies (102) of grouped metal filaments in this predetermined position. The invention also relates to a method of manufacturing such masonry reinforcement structure (100) and to a roll comprising such a masonry reinforcement structure (100). The invention further relates to masonry reinforced with such masonry reinforcement structure (100) and to a method to apply such masonry reinforcement structure (100).

The present invention concerns a concrete strip, the strip comprising conventional concrete and a combined reinforcement of both post-tension steel strands and fibers, said post-tension steel strandshaving a diameter ranging from 5 mm to 20 mm, having a tensile strength higher than 1700 MPa, said fibers being either steel fibers and being present in a dosage ranging from 5 kg/m.sup.3 to 90 kg/m.sup.3 or being non-steel fibers and being present in a dosage ranging from 0.6 kg/m.sup.3 to 25 kg/m.sup.3, whereby the strip has a thickness, whereby further the length of the strip is according to the formula:length of the strip>30strip thickness.

The present invention discloses an arched steel fiber for reinforcement of a cement-based material, of which a main body is arched in a length direction and opposite ends of the main body are curved such that the steel fiber has a higher pullout resistance strength compared to a conventional steel fiber, thereby improving mechanical performance such as a tensile strength, a flexural strength, an energy absorption capability, and the like of a cement compound. In addition, compared to a conventional art, a mixing amount of steel fiber to performance can be reduced so that an added economic value in terms of consumable cost can be created.

The present invention relates to a reinforcement fiber (100) for strengthening a mortar. The reinforcement fiber (100) comprises: a cylindrical fiber body (10); and multiple linear grooves (20) formed on an outer surface of the fiber body (10), wherein the multiple linear grooves (20) comprise: multiple straight linear grooves (30) formed along the longitudinal direction on a surface of the fiber body (10); and an annular linear groove (40) surrounding the fiber body (10) while intersecting the multiple straight linear grooves (30), the straight linear grooves (30) are radially formed with reference to the center of the fiber body (10), and the straight linear grooves (30) and the annular linear groove (40) have a plurality of micro linear grooves (310) formed therein.

The profiled metal fibre with a substantially rectangular cross-section, also with bent fibre ends in the form of a clip, is used to stabilise, bond, attach or join materials and construction materials such as concrete, wood, paper and the like. The fibre edges of the fibre outer surfaces extending in the longitudinal direction of the fibre are designed as edge surfaces (2) oriented at an angle to the fibre outer surfaces in the manner of a bevel. The two wider fibre outer surfaces (3.1, 3.2) of the rectangular fibre are provided with V-shaped channels (4) extending in the longitudinal direction, wherein the edge surfaces (2) are provided with projections (6) and the V-shaped channels (4) are provided with end zones (5) that bound their longitudinal extent. The projections form anchoring heads and the end zones form anchor surfaces with respect to the material to be stabilised, bonded or attached.

Fibers to be added to concrete to improve its properties are coated with an alkali-insoluble polymer, to provide adhesion of the fibers to the concrete. In a further improvement, nanoparticles are dispersed in an alkali-soluble polymer coating, and this is used to coat the fibers. When the fibers are mixed into the concrete mix, the nanoparticles are dispersed throughout the concrete, avoiding problems from agglomeration of the nanoparticles if simply added to the concrete mix.

To provide a concrete-reinforcing shaped body containing concrete-reinforcing fibers and having a plate-like shape. The concrete-reinforcing fibers each preferably have a diameter of 0.3 mm or smaller and a length of 5 mm or larger and 25 mm or smaller.

Reinforcement element (10) for increasing the strength of self-solidifying pasty materials which is made of bendable filaments, that comprises a central portion (12) from which at least in three directions respective arms (11) extend out and each of the arms (11) have at least two spaced filaments (13), and the arms (11) have outer ends constituted by respective loops (14) made by the bending of the filament (13) of which the associated arm (11) is made, and in each loop(14) the distance between the filaments (13) is between the twice and twenty fifth times of the size of the filament (13), and the arms (11) are arranged in such a way that in any half space separated by any plane lead through the central portion (12) at least one of the arms (11) is arranged.

Method of forming a concrete slab to reduce or eliminate control joints includes preparing a substantially flat base, overlaying one or more barriers on top of the base, placing a concrete mixture on top of the barrier(s) and base to form a concrete slab, and allowing the concrete to cure without forming control joints. The base is prepared with a flatness of about inch over 10 feet. A side edge is prepared along a periphery of the concrete slab by extending a vapor barrier from a bottom surface of the slab up the side edge toward a top surface of the slab and covering the side edge. A plurality of post-tensioning cables are positioned to extend through the slab and configured to compress and assist in controlling accelerated displacement of the concrete slab during curing and shrinkage. The concrete slab is formed of an evenly gradated and low slump concrete having high fiber content, minimized cement content, and maximized size of large aggregate.