大理石 花岗岩 干挂 挂贴 特点及优缺点（Characteristics and advantages and disadvantages of dry hanging and hanging of marble and granite）.docVIP

大理石 花岗岩 干挂 挂贴 特点及优缺点（Characteristics and advantages and disadvantages of dry hanging and hanging of marble and granite） Dry hanging stone curtain wall is a kind of new technology in installation, beautiful, durable, not easy to change color and roughness have reached a new level. It overcomes the defect of traditional stone wet paste method, is widely used in large-scale civil building external wall decoration. 1, the traditional stone curtain wall wet paste process defects Previously, regardless of the external walls of buildings, stone stone plaque or wall installation, with walls reinforced with copper wire mesh, fixed plate, the old technology of layered casting cement mortar paste. The process is used for external wall has many ills, not only because of the cement mortar paste sheet after calcium precipitation (Fan Baishuang) and water stains, stone material color, color formation, pollution wall; but also due to temperature changes and other reasons, causing wall hollowing, cracking and even loss of quality defects. Such as: Taiyuan Tianlong building external wall decoration, polished granite plate with 600X600mm Jinan green, although in the installation process using the epoxy resin glue pointing and other measures, but in the completion of more than 1 years still appear white, discoloration, and hollowing and cracking. To this end, the building had to take reinforcement measures, two holes in each granite plate hit Phi 8, hole depth is 10cm, the oblique angle of 15 degrees; the nail diameter 6.5cm steel pin with epoxy resin, and to reinforce after re cleaning. After this treatment, although the granite veneer has been strengthened, but the effect is still not ideal appearance. Another example is the Taiyuan City Finance Building stone granite wall, also because of the wet paste process, completed soon gradually appear white, discoloration, hollowing and cracking phenomena. 2, the principle and technology of stone curtain wall dry hanging method. In recent ye