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JOINT COVERS, PROFILES FOR JOINTS AND ACCESSORIES BREAK PRODUCT DESCRIPTION Self-sealing watertight box element designed to control and seal any spontaneous cracks that develop in the reinforced concrete. They seal automatically when water passes through, thanks to the hydro-expansive action of the bentonite joint installed inside. PRODUCT APPLICATION To determine and guide contraction phenomena in reinforced concrete walls, constructed continuously, such as: • Retaining walls in general • Tanks • Waste water treatment plants • Supporting walls, etc • Perfect hydraulic water-tightness • Maximum control of shrinkage of reinforced concrete • Possibility of preparing continuous concrete castings without joints • Considerable savings in terms of time and money • Allows the reinforcement bars to be laid without interruptions Application BREAK must be placed on the pre-set point for the formation of the joint, marking the external points of the box element on the horizontal surface, in line with the blocking channels. The holes must then be made (ø 12-14 mm with a minimum depth of 8 cm), in line with the previously marked points and the steel rods must then be inserted in these (ø 12-14 mm), which guide the box elements. The profiles are then tied with iron wires to the steel rods in lines with the “fastening slots” and these are tied to the structure reinforcement (the installation guide is more detailed on each package). PLEASE NOTE: The castings must be performed continuously, proceeding regularly on both sides of BREAK. How it works The box elements have the function of creating “reduced section” areas in the concrete casting, in which tension due to shrinkage will be discharged. This will result in the formation of cracks only in where BREAK is present, which can therefore be

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JOINT COVERS, PROFILES FOR JOINTS AND ACCESSORIES BREAK considered a “structural fuse”. When water passes through, the straight-line cracks are self-sealed by the spontaneous expansion of the natural Sodium Bentonite-based hydro-expansive seal. Inter-axis positioning Empirical rule to calculate the position of BREAK I= H/2s where: I = BREAK inter-axis expressed in metres H = height of the wall expressed in metres s = thickness of the wall expressed in metres BREAK is packed in boxes containing 10 bars and can be stored for an unlimited period in a covered place. WARNINGS - IMPORTANT NOTES...

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