Stabilizes Boreholes and Excavation Walls
Korvanto Bentonite
Korvanto Bento Civil
High-Yield Bentonite for Piling Diaphragm Walling HDD & Civil Engineering Applications
Export Ready
Overview
Product Overview
KORVANTO BENTO CIVIL™ is a premium-grade sodium bentonite specially engineered for civil engineering foundation and construction projects. Processed from high-quality bentonite and optimized for superior rheological performance it develops a stable thixotropic slurry that provides excellent excavation support borehole stabilization and seepage control.
When mixed with water it forms a high-yield suspension capable of penetrating soil voids sealing permeable formations and creating a protective filter cake that stabilizes excavation walls. Its exceptional water absorption swelling capacity and gel strength make it ideal for demanding piling trenching tunneling and foundation applications.
Designed for modern construction projects KORVANTO BENTO CIVIL™ delivers reliable performance improved operational efficiency and reduced excavation risks.
Performance
Key Benefits
Reduces Risk of Collapse During Construction
Improves Cutting Carrying Capacity
Forms Effective Filter Cake for Seepage Control
Lubricates and Cools Drilling Equipment
Enhances Drilling and Excavation Efficiency
Supports Deep Foundation Construction
Suitable for Diverse Ground Conditions
Delivers Consistent Performance on Large Infrastructure Projects
Technical Data
Representative Technical Specifications
KORVANTO BENTO CIVIL C-45 — Premium Civil Engineering Grade
| Parameter | Representative Value |
|---|---|
| Marsh Cone Viscosity | Min. 45 sec |
| Filter Loss | 15–17 ml |
| Barrel Yield | 110–140 bbl/ton |
| Sand Content | < 2% |
| Moisture | Max. 14% |
| Particle Size (<200 Mesh) | Min. 85% |
| pH | 9.5–11.0 |
| Liquid Limit | 400–450 |
| Slurry Density | 1–1.20 gm/cc |
| Montmorillonite Content | Min. 75% |
Representative values shown above. Full Technical Data Sheet (TDS) Certificate of Analysis (COA) and additional documentation are available upon request.
KORVANTO BENTO CIVIL C-33 — Standard Civil Engineering Grade
| Parameter | Representative Value |
|---|---|
| Marsh Cone Viscosity | Min. 33 sec |
| Filter Loss | Max. 20 ml |
| Barrel Yield | 90–110 bbl/ton |
| Sand Content | < 2% |
| Moisture | Max. 14% |
| Particle Size (<200 Mesh) | Min. 80% |
| pH | 9.5–11.0 |
| Liquid Limit | 300–375 |
| Slurry Density | 1–1.20 gm/cc |
| Montmorillonite Content | Min. 70% |
Representative values shown above. Full Technical Data Sheet (TDS) Certificate of Analysis (COA) and additional documentation are available upon request.
Custom civil engineering bentonite grades can be supplied according to project specifications soil conditions slurry requirements and engineering standards.
Industry Use
Applications
Grades
Available Grades
Premium Civil Engineering Grade
Standard Civil Engineering Grade
Bespoke Supply
Custom Grade
Custom Manufacturing Options
Korvanto supplies bento civil according to customer requirements including:
Discuss Custom Specs →Particle Size Distribution
Custom Specifications & Grades
Application-Specific Formulations
Quality & Purity Requirements
Custom Packaging
Export Documentation Support
Export Supply
Packaging Options
Product Support
Frequently Asked Questions
What is KORVANTO BENTO CIVIL used for
Korvanto BENTO CIVIL is a high-performance sodium bentonite specially processed for civil engineering and foundation construction. It is used to prepare bentonite slurry that stabilizes excavations minimizes filtration loss supports borehole walls and improves drilling efficiency in piling diaphragm wall tunneling and trenching projects.
What is the difference between C-33 and C-45
The primary difference is the Marsh Cone slurry viscosity which determines slurry performance for different construction conditions.
Korvanto BENTO CIVIL C-33 (Minimum 33-second Marsh Cone viscosity) is designed for general civil engineering applications such as bored piling slurry trenching and standard foundation works.
Korvanto BENTO CIVIL C-45 (Minimum 45-second Marsh Cone viscosity) provides higher viscosity lower filtration loss improved suspension and greater borehole stability for demanding applications such as diaphragm walls tunnel boring (TBM) horizontal directional drilling (HDD) microtunneling and difficult ground conditions.
Which civil engineering applications are suitable for KORVANTO BENTO CIVIL
Korvanto BENTO CIVIL is suitable for a wide range of civil engineering applications including:
Bored Pile Foundations
Diaphragm Wall Construction
Slurry Trenching
Tunnel Boring Machines (TBM)
Horizontal Directional Drilling (HDD)
Microtunneling
Shaft Excavation
Cut-off Walls
Foundation Engineering
Ground Stabilization Projects
Can the slurry properties be customized for specific projects
Yes. Different soil conditions groundwater levels drilling equipment and project specifications require different slurry characteristics. Korvanto can supply customized civil-grade bentonite with tailored viscosity filtration loss barrel yield particle size and other performance parameters to meet project-specific requirements.
What packaging and documentation are available
Korvanto BENTO CIVIL is available in:
25 kg Bags
50 kg Bags
Jumbo Bags (FIBC)
Palletized Shipments
Container Load Supply
Technical Data Sheets (TDS) Certificate of Analysis (COA) Safety Data Sheets (SDS) and other export documentation are available upon request.
Get Started
Request TDS / Request Quote
Share your grade requirements destination country and documentation needs. Our export team will provide a Technical Data Sheet certificate support and a tailored quotation for Korvanto Bento Civil.