Conbextra GP5
Dual Shrinkage Compensated Ultra High Strength Free-Flow Cementitious Grout
Authorized Project Distributor — Fosroc India | Space Arc Engineering, Ghaziabad
Product Overview
Conbextra GP5 is the highest strength member of the Fosroc India Conbextra GP range of cementitious precision grouts. It is a factory pre-blended, single-component, dual shrinkage compensated (plastic and long-term), ultra high strength, free-flow cementitious grout for the most demanding base plate and structural grouting applications where even GP4 does not meet the design specification. Compressive strength exceeding 70 MPa at 28 days makes Conbextra GP5 comparable to high-strength concrete while delivering the precision grouting characteristics — non-shrink, free-flow, non-bleed — that are essential for reliable bearing between machine bases and their foundations. Conbextra GP5 is specified for large steam turbines, gas turbines, critical rotating machinery, and structural elements in nuclear, petrochemical, and power generation projects where engineers require the highest assurance of grout performance under sustained dynamic loading. Space Arc Engineering distributes Conbextra GP5 for power sector and critical infrastructure projects across India.
Applications
- Steam turbine and gas turbine base plate grouting in power plants
- Critical rotating machinery base grouting in petrochemical plants
- Nuclear island structural grouting applications
- Heavy compressor frame grouting requiring ultra high strength
- Structural column base grouting where design calls for 70 MPa grout
- High-load bridge bearing grouting where ultra-high strength is specified
Key Advantages
- Ultra high compressive strength — over 70 MPa at 28 days
- Dual shrinkage compensation for maximum dimensional stability
- Free-flow and self-compacting without vibration
- Non-shrink for assured positive contact and full bearing
- Single-component factory blend for consistent critical applications
- Part of the industry-trusted Fosroc Conbextra GP family
Technical Data
| Type | Dual shrinkage ultra high strength cementitious precision grout |
| Compressive Strength 28d | > 70 MPa |
| Shrinkage Compensation | Dual (plastic and long-term) |
| Flow | High — self-compacting free-flow |
| Application Gap | 10–100 mm (extendable) |
| Pack Size | 25 kg bags |
Get a Quote
📞 +91 9999155255
📧 info@space-arc.com
🏢 Space Arc Engineering, Sahibabad, Ghaziabad
Frequently Asked Questions
What makes Conbextra GP5 different from GP4?
Conbextra GP5 achieves a higher target compressive strength — above 70 MPa at 28 days — compared to GP4 which targets above 55 MPa. The ultra high strength of GP5 is achieved through a more refined cement-polymer system and finer particle size distribution. Both products have dual shrinkage compensation and free-flow consistency. GP5 is used in critical applications — typically power and nuclear sectors — where design strength requirements exceed what GP4 can offer.
Is Conbextra GP5 available from stock in India?
Space Arc Engineering maintains stock of Conbextra precision grouts including GP5 for the Delhi NCR and Northern India market. For large project requirements, pre-order is recommended to ensure availability. Contact our Ghaziabad office at +91 9999155255 to confirm stock levels and arrange project supply schedules.
What curing is required after placing Conbextra GP5?
After placing Conbextra GP5, exposed surfaces should be cured immediately using wet hessian and polythene sheet or a Fosroc curing compound such as Concure WB. Curing should be maintained for a minimum of 3 days and ideally 7 days. In hot and dry conditions, curing is critical to prevent premature drying that would compromise ultimate strength development.
Source Conbextra GP5 for Your Project
Space Arc Engineering is an Authorized Project Distributor for Fosroc India serving Delhi NCR, Ghaziabad, Noida and Uttar Pradesh.
Get Conbextra GP5 — Dual Shrinkage Compensated Ultra High Strength Free-Flow Cementitious Grout — pricing, TDS & technical help
Space Arc Engineering is an authorized Fosroc distributor & applicator in Delhi NCR & pan-India. Fast quotes, datasheets and on-site support.
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