Product Overview

Conbextra GP3 is a dual shrinkage compensated, high-strength, high-flow cementitious precision grout conforming to ASTM C 1107 Type C. Dual shrinkage compensation addresses both the plastic (fresh state) and hardened state volume changes that can cause a conventional grout to develop a gap between the base plate and the grout over time. This makes Conbextra GP3 the preferred choice for critical machinery foundations, bridge bearings, and heavy-load bearing grouting where long-term intimate contact between the grout bed and the base plate must be guaranteed throughout the full design life of the structure. Conbextra GP3 achieves high early and ultimate compressive strengths and maintains volume stability under sustained and dynamic loads. Space Arc Engineering supplies Conbextra GP3 for power sector, petrochemical, and infrastructure projects across Delhi NCR and Northern India.

Applications

• Machine foundations with heavy dynamic loads (turbines, compressors)
• Bridge bearing installation and pad grouting
• Heavy duty precast concrete connections
• Rail bearing plate grouting under dynamic train loading
• Crane rail grouting under heavy cyclic loads
• Critical precision alignment grouting in power plants and refineries

Key Advantages

• Dual shrinkage compensation — both plastic and hardened state
• ASTM C 1107 Type C — highest classification level
• High flow for complete void filling beneath base plates
• High early and ultimate compressive strength
• Ensures permanent bearing contact under dynamic loads
• Proven Fosroc product for critical infrastructure