Description
Fosroc Conbextra TS High Flow Non-Shrink Aggregate Filled Cementitious Grout
Fosroc Conbextra TS is a high-flow, non-shrink, aggregate-filled cementitious grout specifically developed for large-volume grouting applications where gap thicknesses range from 75mm to 500mm. Designed for structural grouting projects requiring high strength, exceptional flow characteristics and reduced thermal cracking, Conbextra TS is ideal for thick section applications that exceed the capabilities of standard cementitious grouts.
Supplied as a pre-blended, ready-to-use dry powder, Conbextra TS requires only the addition of clean water to produce a highly flowable grout that can be poured or pumped into position. Its carefully graded aggregates and advanced additive technology ensure excellent flow without segregation or bleeding, whilst minimising exothermic heat generation in deep pours.
Conforming to BS EN 1504-3 Class R4 requirements, Conbextra TS provides outstanding durability, high compressive strength and reliable long-term performance for demanding structural and industrial grouting applications.
Key Features & Benefits
- High-flow aggregate-filled grout
- Non-shrink formulation
- Suitable for thick section grouting
- BS EN 1504-3 Class R4 compliant
- High compressive strength
- Chloride free
- Can be poured or pumped
- Excellent flow characteristics
- Will not segregate or bleed
- Reduced risk of thermal cracking
- Suitable for gap thicknesses up to 500mm
- High bond strength
- Excellent durability
- Fire rated Class A1 Non-Combustible
- Suitable for large-volume grouting projects
Applications
- Large stanchion baseplates
- Thick section baseplate grouting
- Precast concrete panel joints
- Filling box sections
- Heavy machinery foundations
- Structural support grouting
- Industrial plant installations
- Infrastructure projects
- Pumped grouting applications
- Large void filling
- Civil engineering projects
- Structural repair works
Technical Information
- Product Type: Aggregate filled non-shrink cementitious grout
- Classification: BS EN 1504-3 Class R4
- Colour: Cement Grey
- Pack Size: 25kg
- Application Thickness: 75mm – 500mm
- Water Addition: 3.3 litres per 25kg bag
- Yield: Approximately 12 litres per bag
- Fresh Wet Density: 2300kg/m³
- Flow Properties: 750mm within 10 seconds
- Initial Set: 6 hours
- Fire Rating: Class A1 Non-Combustible
- Shelf Life: 12 months
Performance Data
Compressive Strength
- 1 Day: 14 MPa
- 7 Days: 42 MPa
- 28 Days: 60 MPa
Bond Strength
- 2.7 MPa
Flexural Strength
- 6.7 MPa at 28 Days
Freeze-Thaw Resistance
- 2.4 MPa
Elastic Modulus
- 32.7 GPa
Chloride Ion Content
- 0.02%
Frequently Asked Questions
What is Fosroc Conbextra TS used for?
Conbextra TS is designed for large-volume structural grouting applications where grout thicknesses range from 75mm to 500mm.
What thickness can Conbextra TS be applied at?
It can be placed in a single pour between 75mm and 500mm thick.
Can Conbextra TS be pumped?
Yes. It can be poured or pumped, making it suitable for large-scale industrial and infrastructure projects.
Why is Conbextra TS suitable for thick sections?
The aggregate-filled formulation reduces heat generation and helps minimise the risk of thermal cracking commonly associated with deep grout pours.
Does Conbextra TS shrink during curing?
No. It is a non-shrink grout with controlled expansion characteristics.
What compressive strength does it achieve?
Conbextra TS achieves 14 MPa after 1 day, 42 MPa after 7 days and 60 MPa after 28 days.
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