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当建筑物或构筑物的结构体系已不能满足使用要求时,就要进行结构改造与加固。采用高强钢绞线与聚合物砂浆加固施工,具有强度高,施工速度快,工期短等优点。高强钢绞线强度高,其标准强度约为普通钢材的5倍,加固后对结构自重增加小;聚合物砂浆的收缩性小,减少裂缝的产生,有效的防止二氧化碳,可以预防砼碳化,冻融及耐久性好,它的力学性质与砼相近,具有渗透性,提高了长期粘结性能,耐火、耐腐蚀、耐老化性能好。钢绞线网片---聚合物砂浆加固复合面层技术是将被加固构件进行界面处理后,将钢绞线网敷设于被加固构件的受拉区,再在其表面涂抹聚合物砂浆。主要是在结构加固的过程中不影响建筑的正常使用。
When the building or structure of the system has been unable to meet the requirements of the system, it is necessary to structural transformation and reinforcement. The use of high strength steel strands and polymer mortar reinforcement construction, with high strength, construction speed, short duration and other advantages. The strength of high-strength steel strand is high, the standard strength is about 5 times that of ordinary steel, and the weight of the structure increases little after reinforcement. The shrinkage of polymer mortar is small, the generation of cracks is reduced, the carbon dioxide is effectively prevented, the carbonation and freezing of concrete can be prevented Melt and durability is good, its mechanical properties and concrete are similar, with permeability, improve the long-term bonding performance, fire resistance, corrosion resistance, good aging resistance. Strand mesh --- polymer mortar reinforced composite surface technology is to be reinforced components interface treatment, the laying of steel wire mesh reinforced members of the tension zone, and then coated with polymer mortar on the surface. Mainly in the process of structural reinforcement does not affect the normal use of the building.