Paper Title:
Study on the Hydraulic Conductivity of Sand-Bentonite mixtures used as Liner System of Waste Landfill
  Abstract

A liner system such as liner sheet underlying impermeable soil layer having hydraulic conductivity less than 1*10-7 cm/s and a thickness larger than 100 cm is often used in china. As there is very little natural clay having such low permeability, bentonite is usually mixed into sand to decrease the permeability. In this paper, the compaction tests and permeability testing using flexible-wall permeameter are conducted. The test results show that the value of critical benonite ratio depends on bentonite ratio, and the hydraulic conductivity of the sand mixed with critical bentonite ratio for distilled water shows of the order of 1*10-8 cm/s that satisfies the china standard requested as compacted soil liner of waste landfill. Finally, the permeability testing used leachate including calcium component was conducted.

  Info
Periodical
Advanced Materials Research (Volumes 194-196)
Edited by
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Pages
909-912
DOI
10.4028/www.scientific.net/AMR.194-196.909
Citation
S. F. Xu, Z. Wang, Y. Zhang, "Study on the Hydraulic Conductivity of Sand-Bentonite mixtures used as Liner System of Waste Landfill", Advanced Materials Research, Vols. 194-196, pp. 909-912, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Yong Li, Zhi Gang Zhang
Abstract:Slurry trench cutoff walls, constructed using self-hardening cement-bentonite (SCB) are the most common form of in-ground vertical...
978
Authors: Osvaldo de Freitas Neto, Olavo Francisco dos Santos Jr., Fagner Alexandre Nunes de França, Ricardo Nascimento Flores Severo
Chapter 6: Geotechnical Engineering, Structural Engineering, Architecture and Urban Planning
Abstract:This paper intends to evaluate changes in permeability of a soil sample from Formação Barreiras, in Natal, the capital city of Rio Grande...
858