Repaired M50 harsh non-shrinkage mortar leveling quality beam

M50 harsh non-shrinkage mortar M50 harsh non-shrinkage mortar bearing manufacturer M50 harsh non-shrinkage mortar leveling smaller span arch ring and arch rib, should take the full width of arch ring from the roof to the ends of the arch foot arch D symmetrically continuous casting concrete, and should be completed before the arch foot concrete initial setting. Large span arch ring and arch rib, should be symmetrical pouring along the direction of the arch span section, section position should be symmetrical, uniform with arch stress and deformation for the principle, and the appropriate Settings in the vault, L / 4 parts, arch foot and the place such as arch node; Paragraphs of the joint surface should be vertical to the arch axis, the piecewise point interval should be reserved slot, the appropriate width of 0. 5 - 1. 0 m, the tank has reinforced joint, its width is should satisfy the M50 harsh non-shrinkage mortar reinforced joint needs. When pouring concrete arch, should strict according to advance the & # 44508; Symmetry was conducted in the vaults of casting process and should be controlled at the ends of the casting speed, avoid to produce too much deviation. Xuan poured subsection, each section of concrete continuous casting is completed, a reason is interrupted, should be pouring into perpendicular to the axis of the arch construction joints; If already use cant M50 harsh non-shrinkage mortar pouring into, should be perpendicular to the plane of the arch axis, cut or terraced combined with surface. Interval groove of concrete pouring should comply with the regulations of design. When designing not provided, should be in 85% of the arch ring of concrete strength to meet the design strength, pouring from the arch foot to vault symmetrical; Vault and arch foot spacing groove closure when pouring the concrete should be in the final long-span arch ring with ring ( Layer) , segmentation method of pouring concrete, longitudinal reinforcement appropriate block set, and the joint should be located in the last few interval slot, slot concrete pouring interval connection again. Long-span reinforced concrete box arch ring used in assembly on arch section cast-in-site concrete prefabricated components and then the method for construction, assembly and wash all should now two to vault symmetrical arch feet. The floor construction of box arch should be set according to the deformation of arch interval seam, the concrete should be in the bottom closure inside seam of casting; Arch ring of the bottom, web plate concrete strength to meet the design strength of 85% can be installed behind the cover plate, laying reinforced, cast-in-place concrete roof. The temperature of the arch ring closure should comply with the design requirements; Design does not demand, should choose the night temperature is relatively stable period. Arch ring closure before take jack to pressure on both sides of the arch ring of arch ring stress adjustment method, the strength of the concrete arch ring should reach the strength of the design rules. Arch ring in the process of casting, the deformation of the arch should be monitored at any time such as deformation than calculated value, should be timely find out the reason, and take the M50 harsh non-shrinkage mortar reinforced arch or adjust the load order measures, ensure construction safety.