SHALLOW TRENCH ECO MATERIAL (STeM)
Newly developed backfill material called Shallow Trench Eco Materials (STēM) utilizes Coal Bottom Ash (CBA) and slurry Coal Fly Ash (CFA) as an alternative backfill materials to conventional sand for filling shallow trenches. This innovation aims to support TNB's ESG (Environmental, Social, and Governance) initiative by effectively managing waste from TNB's business operations.
To discuss partnership and licensing opportunities, contact us:
Nur Amira bt. Nor Arifin
Researcher
Nor Aishah Bt Abbas
Executive, Technology Commercialization
Selecting the most suitable backfill material is crucial for creating a strong and supportive environment around the foundation. Ideally, the backfill material should be similar to the native soil surrounding the foundation. This ensures compatibility and minimizes the risk of differential settlement (uneven sinking) between the foundation and surrounding soil.
Key Features & Benefits
STēM offers potential benefits such as reduce the number of failures associated with cables laid in shallow trenches, particularly that caused by third-party damage.
Contribute to the improvement of the performance of MVUG (Medium Voltage Underground) cable systems.
This development represents an environmentally responsible approach to backfilling shallow trenches, offering waste utilization and potential performance enhancements in TNB's operations.
Potential Applications
STēM can be widely used as backfill for foundations and to cover cable for any utilities industry
It can also be used to insulate foundations and improve drainage