Accelerated Experimental Study on the Characteristics of Salt Deposition on the Surface of Homogeneous Dense Materials:A Case Study of Building Glass
Salt deposition may happen on the surface of a building envelope under salt spray climate;however,uniform dense materials like glass have not been studied in this regard.In this study,the salt deposition on the widely used hollow glass surface was first yielded by the method of accelerated salt spray test,and the relationship between spray time,saline concentration,angle of inclination and deposition characteristics was explored.The results show that the distribution uniformity and density of salt spots on the glass surface decrease as spray time increases,but the size of salt spots grows exponentially with increasing spray time.On the other hand,when the spray time increases,the amount of deposition per unit area increases logarithmically.Under the condition of 10％saline concentration,the deposition per unit area and spray time still exhibit a logarithmic growth trend,but the corresponding deposition per unit area is always higher than that at 5％saline concentration,with an average increasing rate of 11.6％.On the inclined glass surface,the salt spots are not evenly distributed;instead,they mainly appear in the bottom area along the direction of gravity,and the deposition area gradually grows larger with longer spray time.The salt spot size on the inclined surface did not exhibit an exponential growth trend during the limited spray time,but the spray time and deposition per unit area showed a logarithmic growth trend.
building glassaccelerated testsalt depositionspray timesaline concentrationangle of inclination
万方数据
