Wollert Landfill Cell 10 uses Geosynthetic Clay Liner Technology

The Project

Hanson’s Wollert Landfill in Victoria has been providing the safe disposal of waste for customers including households as well as commercial, industrial and demolition businesses.

The landfill accepts a wide range of materials including putrescible and solid-inert waste, asbestos, contaminated soils, recycled products and much more, and is constructed in cells that hold about 500,000 tonnes of waste and take about 18 months to fill.

A new cell, Cell 10, was being constructed and the Global Synthetics engineering team was able to assist with an innovative geosynthetic clay liner solution.

Our Solution

The construction of Cell 10 required careful consideration of site-specific issues such as soil material, slope angle and interface friction, and after reviewing various options the designers specified the use of Bentofix® X5f geosynthetic clay liner.

Bentofix® X5f is a multicomponent GCL where a polymer extruded coating is applied to the needle-punched GCL, improving performance and providing a greater range of potential applications.

The extruded coated surface is embossed with a regular dimpled friction surface to improve the interface shear properties of the GCL. Global Synthetics supplied 7750m2 of the Bentofix® X5f NSP6000 directly to the contractor. Both the MQA and third Party CQA conformed to the stringent Victorian EPA BPEM Regulations without any material failing and being rejected.

This result meant that the cell was constructed without any delays or unnecessary costs involved with extra testing and within budget.