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由于混凝土施工、本身变形和约束等一系列问题,使混凝土裂缝成了桥梁、隧道最常见的工程病害。由于裂缝的存在和发展,通常会使内部的钢筋等材料产生腐蚀,降低钢筋混凝土材料的承载能力、耐久性及抗渗能力,不仅影响桥梁的外观、使用寿命,严重的还将威胁到行车和行人的安全。自上世纪九十年代,从国外引进壁可法这种修补裂缝的工艺后,逐步成为化学灌浆修补混凝土裂缝的首选工法之一。如今经过十几年的研究终于超越了原有工法,弥补原有工法中的不足,并在降低成本、安全多效、提高施工效率与修补效果方面都有着显著的更新和改进,使新壁可法日臻完美。
Due to a series of problems such as concrete construction, deformation and constraint, concrete cracks become the most common engineering diseases of bridges and tunnels. Due to the existence and development of cracks, corrosion of internal steel bars and other materials is usually caused, which reduces the carrying capacity, durability and impermeability of reinforced concrete materials. It not only affects the appearance and service life of bridges, but also threatens the driving and Pedestrian safety. Since the nineties of last century, the introduction of wall from France, France and France to repair this crack technology, and gradually become the chemical grouting repair concrete cracks one of the preferred method. Now after more than ten years of research has finally exceeded the original workmanship, to make up for the lack of the original workmanship, and reduce costs, safety and efficiency, improve construction efficiency and repair effect has a significant update and improvement, so that the new wall can The law is perfect.