预制板端头裂缝指的是两块板搭接处,即板搁在墙或梁交界处出现的裂缝。有许多新房刚竣工不久,就出现了裂缝。开始很小,象一根头发丝那样细,随着时间的推移与荷载的增加,裂缝逐渐开展,一个月以后,缝宽可达2～3毫米左右。构件出现裂缝,不仅有损外观,而且破坏结构的整体性,降低构件刚 Cracks at the ends of prefabricated panels refer to the laps of the two plates, that is, the cracks that occur when the plates rest at the junction of the wall or beam. As soon as many new houses were completed, cracks appeared. The beginning is very small, like a thin hair, with the increase of load over time, cracks gradually developed, one month later, the seam width of up to 2 to 3 mm. The appearance of cracks in the components not only damages the appearance but also destroys the structural integrity and reduces the number of components.