In order to standardize the pouring construction process of precast concrete beams (box beams, T-beams, hollow slab beams) for highway bridges, clarify the quality control points and standards of each process, ensure the internal quality (strength, elastic modulus, durability), appearance quality (uniform color, smooth surface, straight lines), and safe and controllable prestressing tension of precast concrete beams, this guidebook is specially formulated.
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