Abstract: A device for forming expansion joints between sections of covered floor or wall areas comprises two angle sections slidingly engaging each other parallel with the floor or wall surfaces. A first angle section comprises a fastening leg and a vertically-extending terminating leg. There are two legs on the terminating leg forming an outwardly-directed pocket. The pocket-forming legs are slidingly engaged by a sliding leg of the second angle section. The sliding leg extends from the top of the terminating leg of the second angle section, the terminating leg being molded on a fastening leg as well. The terminating leg of the first angle section has an approximately “S” shape, in which the upper part of the terminating leg forms the pocket-forming legs for receiving the sliding leg. The lower part of the terminating leg forms a chamber for receiving mortar.

Abstract: A waterbar for use between adjacent panels (22, 24) in a diaphragm wall, the waterbar comprising a first member (5) in the form of an elongate strip (6) provided along a first longitudinal edge (8) with a hydrophilic material (7) and along the opposite longitudinal edge (9) with a retaining channel (10), and a second member (12) in the form of an elongate strip (13) provided along a first longitudinal edge (15) with a hydrophilic material (14) and along the opposite longitudinal edge (16) with a keying projection (17). The retaining channel (10) of the first member (5) is shaped so as to slidably retain the keying projection (17) of the second member (12), and either the retaining channel (10) or the keying projection (17) is provided along its length with a hydrophilic material (18), which serves to seal the joint between the first and second members (5,12).

Abstract: A joint insert is provided as well as a system and method for using same in the finishing of a surface's joint. The joint insert is a strip of material having a central longitudinal axis dividing the strip into first and second halves that are mirror-images about the central longitudinal axis. The strip is folded along the central longitudinal axis so that when the strip is positioned in the joint, the strip's central longitudinal axis and portions of the strip's first and second halves extend out of the joint. Gaps are formed between the joint and portions of the strip within the confines of the joint. A filler material is used to fill the gaps. As a final step in the finishing process, any of the strip and filler material extending above the plane of the surface over the joint is removed.

Abstract: A sealing arrangement includes face walls of two construction parts made of concrete, reinforced concrete or the like, these face walls being pressed against each other, particularly of tunnel tube segments, as well as a strand shaped seal made of elastomeric material for sealing the gap between the construction parts or tunnel tube segments, whereby the seal has a base part which, in relation to the sealing part, is widened on both sides, forming flanges, and which, by means of these flanges and suitable additional anchoring parts, is fastened on one of the two face walls of the construction parts or tunnel tube segments, whereas the sealing part, the latter being joined with the base part in one piece, has a trapezoidal shape, viewed cross-sectionally, and, in relation to the base part, a decreasing width, with lateral flanks tapering off at the same time, and seals the gap when the construction parts or tunnel tube segments are pressed together.

Abstract: Variable gaps between adjacent concrete panels are covered and sealed by a T-shaped body of extruded semi-rigid plastics material and which includes a one piece cover section and stem section of generally uniform wall thickness. The stem section has a set of parallel spaced flexible fins projecting from each side at an angle of 45° towards the cover section, and the fins increase in width from the distal end of the stem section towards the cover section. Each fin has parallel spaced triangular gripping ribs on its side facing away from the cover section for gripping opposing concrete surfaces defining gaps ranging generally from ½″ to 1¼″. In one embodiment, the cover section has a slightly crowned intermediate portion with tapered opposite edge portions, and in other embodiments, the intermediate portion is curved or configured to cover gaps defined within outside and inside corners formed by adjacent panels.

Abstract: Methods and apparatus for installing a fire rated insulation material to span an expansion joint between walls by hollowing out a portion of at least one wall adjacent to the joint to form at least one pocket, and installing the insulation material so that it spans the joint and can slide in and out of the at least one pocket.

Abstract: A method and strip (10) for sealing between opposed surfaces (22, 24), and formation of a sealable groove (20). The method of sealing utilizes a sealing strip which is introduced between the surfaces, and settable material (26) which is provided between the sealing strip and one of the surfaces (22), wherein the sealing strip (10) is provided with an elongate body portion (12) and a lengthwise extending and laterally extending flexible barrier (14), the sealing strip (10) being introduced through an opening defined by the surfaces such that the barrier resiliently engages the surface (22) and, when the strip is in position, provides a barrier between the body portion and the surface.