Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed or segmented tool wherein the longitudinal blade or edge portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed or segmented tool wherein the longitudinal blade or edge portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

A device for thermally insulating, force-transmitting retrofitting of a second load-bearing construction element to a first load-bearing construction element has an insulation body to be arranged in a construction joint between the construction elements. The insulation body has a casing filled with insulation material. The casing has a first longitudinal side to be arranged at the first construction element and an oppositely positioned second longitudinal side. The casing has a length direction, a transverse direction, and an upright direction perpendicular to length direction and transverse direction. A compression element for transmitting compressive forces between first and second construction elements extends from the first to the second longitudinal side. First tension rods project into the casing at the first longitudinal side and second tension rods project into the casing at the second longitudinal side. A connection arrangement is arranged in the casing for force-transmittingly connecting the first and second tension rods.

A device for thermally insulating, force-transmitting retrofitting of a second load-bearing construction element to a first load-bearing construction element has an insulation body to be arranged in a construction joint between the construction elements. The insulation body has a casing filled with insulation material. The casing has a first longitudinal side to be arranged at the first construction element and an oppositely positioned second longitudinal side. The casing has a length direction, a transverse direction, and an upright direction perpendicular to length direction and transverse direction. A compression element for transmitting compressive forces between first and second construction elements extends from the first to the second longitudinal side. First tension rods project into the casing at the first longitudinal side and second tension rods project into the casing at the second longitudinal side. A connection arrangement is arranged in the casing for force-transmittingly connecting the first and second tension rods.

A construction process for enhancing or repairing a concrete floor structure that includes a carbon fiber grid as a reinforcement component is disclosed. The process includes forming a trench at a top surface of the concrete floor structure, and placing a reinforcement material in the formed trench. Then, a concrete bonding agent is applied into the trench. Then, the trench is filled with concrete. As a result, the concrete floor structure is enhanced or repaired to have at least one additional reinforcement component other than the carbon fiber grid.

A construction process for enhancing or repairing a concrete floor structure that includes a carbon fiber grid as a reinforcement component is disclosed. The process includes forming a trench at a top surface of the concrete floor structure, and placing a reinforcement material in the formed trench. Then, a concrete bonding agent is applied into the trench. Then, the trench is filled with concrete. As a result, the concrete floor structure is enhanced or repaired to have at least one additional reinforcement component other than the carbon fiber grid.

A construction process for enhancing or repairing a concrete floor structure that includes a carbon fiber grid as a reinforcement component is disclosed. The process includes forming a trench at a top surface of the concrete floor structure and placing a reinforcement material in the formed trench. Then, a concrete bonding agent is applied into the trench. Then, the trench is filled with concrete. As a result, the concrete floor structure is enhanced or repaired to have at least one additional reinforcement component other than the carbon fiber grid.

A construction process for enhancing or repairing a concrete floor structure that includes a carbon fiber grid as a reinforcement component is disclosed. The process includes forming a trench at a top surface of the concrete floor structure and placing a reinforcement material in the formed trench. Then, a concrete bonding agent is applied into the trench. Then, the trench is filled with concrete. As a result, the concrete floor structure is enhanced or repaired to have at least one additional reinforcement component other than the carbon fiber grid.

A connector (100) is disclosed for use in forming a joint between a first surface (400) and a second surface (410). The connector (100) comprises a housing (10). The connector also comprises a tendon (200). A portion of the tendon (200) can protrude from the housing (10) through a seal (50). The seal (50) is configured to sealably cover an open end (14) of the housing (10) such that the tendon (200) can move through the seal (50) and laterally sideways across the open end (14) together with at least a portion of the seal (50). Also disclosed is a connector (100) system for use in forming a joint, and a method of installing a connector (100) to form a joint, between a first surface (400) and a second surface (410). The connector (100) system and method comprises and makes use of the housing (10) and the tendon (200).

A connector (100) is disclosed for use in forming a joint between a first surface (400) and a second surface (410). The connector (100) comprises a housing (10). The connector also comprises a tendon (200). A portion of the tendon (200) can protrude from the housing (10) through a seal (50). The seal (50) is configured to sealably cover an open end (14) of the housing (10) such that the tendon (200) can move through the seal (50) and laterally sideways across the open end (14) together with at least a portion of the seal (50). Also disclosed is a connector (100) system for use in forming a joint, and a method of installing a connector (100) to form a joint, between a first surface (400) and a second surface (410). The connector (100) system and method comprises and makes use of the housing (10) and the tendon (200).