Experimental study of CT test on the failure of acrylate spray-applied waterproof layer in the groundwater environment

查看全文 作　　者：YANG QiXin, XU Peng & ZHENG ShangFeng 1 School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China

出　　处：《Science China(Technological Sciences)》索引2010年第53卷第2期,共7页

基　　金：supported by the National Natural Science Foundation of China (Grant No. 50678151) 摘　　要：In this study the computerized tomography (CT) was first used to quantitatively analyze the failure of acrylate spray-applied waterproof membrane in the groundwater environment. The results of the CT tests show that it is feasible to use the CT to quantitatively analyze the failure of the waterproof membrane and the CT method has the advantages of speediness and accuracy that can eliminate the fussy operation process in routine tests. The main conclusions summarized from the study are as follows. First, there are two combined-indexes that can be used to decide the failure of the spray-on waterproof layer: one is that the reduced percentage of the CT number of the spray-on waterproof layer is less than 40.0% and the other is that the variance of the CT number decreases first and then increases. Second, the applicability for the spray-on waterproof layer in the groundwater environment is the SO 24-concentration ≤ 1%, the Cl-concentration ≤ 7.5% and the pH value ≤ 12.0 of the groundwater, respectively. 关键词：spray-on WATERPROOF layer SCAN CT number FAILURE GROUNDWATER environment

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Experimental study of CT test on the failure of acrylate spray-applied waterproof layer in the groundwater environment

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