Feasibility study on the application of plant fiber reinforced soil in the restoration of clay relics
The surface of the rough clay layer of the eleven faced Guanyin statue in Dule Temple in Jixian County,Tianjin,has met with surface breakage,nail,crack,shortening and other diseases.In order to find out the best ratio of reinforced soil used in repairing the coarse clay layer of the statue,the influence of the content of straw and fine sand on the coarse clay layer of clay relics was investigated.Coarse clay lay-er samples with different sand-fiber ratio were taken as the research object,and drying shrinkage test,compressive and tensile tests were carried out,with the following conclusions drawn in combination with the results of scanning electron microscope:the admixture in the coarse clay layer of Guanyin image is of sand and fiber.Under different sand content,the fiber in coarse clay layer has a different effect on the shrinkage process of water loss.The addition of fiber makes the specimen change from brittle failure to plastic failure under compression and tension.The fiber content and sand content have a complicated rela-tionship in influencing the compressive strength of the specimen.The addition of sand to the sample can reduce the shrinkage rate of the coarse clay layer,while the addition of fiber is mainly to restrain the dry-ing shrinkage of the sample,reduce the total weight of the coarse clay layer and improve the damage of clay relics.
万方数据
维普
