Sheet for repairing and reinforcing concrete structure and repairing and reinforcing method thereof
A technology of concrete and structures, which is applied in building structure, chemical instruments and methods, building maintenance, etc. It can solve problems such as difficult quality management, excessive specification design, and prolonged construction period, so as to achieve stable quality, repair or enhance operations Reduced effect
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[0046] Embodiments of the present invention will be described below with reference to the drawings.
[0047] figure 1 It is a cross-sectional view showing one embodiment of the sheet for repairing and reinforcing a concrete structure of the present invention.
[0048] The sheets were stacked in the following order.
[0049] First, on the polyvinyl fluoride film (about 20 to 50 μm in thickness) as the protective layer 1, a polyurethane-based two-component curing adhesive (3 to 50 g / m in terms of solid content) is applied as the lamination adhesive 2 2 left and right), and dried, and laminated with vinylon three-way mesh as the reinforcement layer 3 (a three-way laminated fabric cross-bonded by making multifilaments of about 800 to 4000 deniers into regular triangle meshes with a side of about 10 to 40 mm) A dry-laminated sheet is formed with a spun-bonded nonwoven fabric (about 12 to 70 g per square meter) made of polyester fiber as the attachment layer 4 to form a sheet 10 f...
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