Bentonite in Dam Sealing : The Hydraulic Barrier Solution
Bentonite is used in dam embankments as an effective sealing material. Composed mainly of the clay mineral montmorillonite, it exhibits very high swelling capacity and water absorption. When bentonite comes into contact with moisture, it swells and transforms into a gel-like mass that fills voids in the soil or surrounding materials, thereby forming a natural, highly impermeable barrier.
Bentonite in Dam Sealing: Enhancing Stability with Self-Healing Hydraulic Barriers
In earth dams—particularly within their central core—incorporating bentonite can dramatically prevent water seepage through the dam body or its foundation. This sealing action is crucial for enhancing structural stability and durability, as well as reducing the risk of internal erosion. By providing a robust hydraulic barrier, bentonite lowers water pressure in critical zones and helps avert potential failure of the dam structure.
Furthermore, bentonite’s self-healing property enables it to re-swell and seal small cracks or minor settlements that may develop over time. This characteristic makes bentonite one of the most reliable and widely adopted materials for geotechnical waterproofing in projects such as dam cores, tunnel linings, reservoir beds, and containment ponds.
Our Products
Contact Information
Sales manager: +98 915 334 6095
Phone Number: +98 56-3132 | +98 56 3161 0000
Factory Address: Industrial Estate of Khusf - South Khorasan Province - Iran
Email: info@KianBentonite.com