T/SCSKJQYLHH 23-2024 Pavement support made of basalt fiber composite material

Scope

Main Technical Content: 5.1 Raw Materials 5.1.1 Basalt fiber shall meet the technical requirements of GB/T 38111 for general-purpose basalt fiber. 5.1.2 Composite materials for basalt fiber composite scaffolds shall use basalt fiber-reinforced composite extrusion profiles, and their performance shall comply with GB/T 31539 and meet the requirements of M30 grade. 5.1.3 Fasteners used with hardware materials for scaffolds shall comply with GB/T 3098.1 and GB/T 3098.6. 5.2 Appearance 5.2.1 The finished composite scaffold components shall have a smooth and uniform surface, free from cracks, bubbles, burrs, exposed fibers, or poor fiber impregnation. There shall be no obvious twisting, and the cut surfaces shall be flush and free from delamination. 5.3 Dimensional Tolerances 5.3.1 The wall thickness of scaffold rods shall not have negative tolerances. The processing errors shall meet the design drawings requirements, and when no dimensional tolerances are specified, they shall comply with the requirements of GB/T 1804 for medium-grade M level. 5.3.2 The allowable dimensional tolerances of scaffolds pre-installed by the factory shall meet the requirements of Table 1. 5.3.3 For fixed-angle adjustable scaffolds, the deviation of the inclination of the upper components at each support point from the set angle shall be within ±1°. Table 1: Allowable Dimensional Tolerances of Scaffolds Pre-installed by the Factory Project Installation Inclination Scaffold Beam Elevation Scaffold Column Surface Allowable Deviation ±0.5° ±1mm ±1mm ±1mm 5.4 Allowable Length-to-Diameter Ratio of Rods Table 2: Allowable Length-to-Diameter Ratio of Compressive and Tensile Components Component Type Allowable Length-to-Diameter Ratio Compressive Components Main load-bearing components 150 Other components, supports, etc. 200 Tensile Components Main components 350 Inter-column supports 300 Other supports 400 5.5 Structural

Development Information

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