原文传递
Using bentonite-polymer composite GCLs to contain CCR leachates
| 题名： | Using bentonite-polymer composite GCLs to contain CCR leachates |
| 正文语种： | eng |
| 作者： | Jiannan Chen;Sarah A. Gustitus;Yu Tan;Craig H. Benson |
| 作者单位： | University of Central Florida in Orlando Fla;Geosyntec Consultants Inc. in Tampa Fla;School of Engineering at the University of Virginia in Charlottesville Va;University of Wisconsin-Madison in Madison Wisc |
| 摘要： | Hydraulic conductivity tests were conducted on seven BPC GCLs using seven CCR leachates. The GCLs were permeated directly with leachate (no prehydration) at an effective stress of 2.9 psi (20 kPa). The following conclusions are drawn: 1. BPC GCLs can have appreciably lower hydraulic conductivity than NaB GCLs when permeated with CCR leachates. The BPC GCLs evaluated in this study have hydraulic conductivities to CCR leachates ranging from 10~(-12) to 10~(-10) m/s, whereas NaB GCLs had hydraulic conductivities to the CCR leachates ranging from 10~(10) to 10~(-6) m/s. 2. BPC GCLs with higher polymer loading tend to have lower hydraulic conductivity to CCR leachates. BPC GCLs consistently had hydraulic conductivity less than 10~(-10) m/s when the polymer loading was greater than 4%, and less than 10~(-11) m/s when the polymer loading was greater than 6%. Polymer type likely affects these thresholds, but was not explored in this study. |
| 出版年： | 2021 |
| 期刊名称： | Geosynthetics |
| 卷： | 39 |
| 期： | 5 |
检索历史
应用推荐
