Product Overview

Conbextra GP4 is a factory pre-blended, single-component, free-flow, dual shrinkage compensated (plastic and long-term) cementitious precision grout conforming to Type C of BS EN 1504-6. It delivers higher compressive and flexural strength than Conbextra GP3, making it the preferred choice where elevated load-bearing capacity is required in the grouted joint — for example, heavily loaded machine bases in power generation, large crane pedestals, structural column base plates in high-rise construction, and pre-cast concrete connection joints subject to high design loads. Like all members of the Conbextra GP family, GP4 is non-shrink and maintains positive contact between the base plate and foundation at all times, ensuring full bearing area. The dual shrinkage compensation system addresses both plastic shrinkage (during setting) and long-term drying shrinkage (during curing), giving the most complete dimensional stability of any cementitious grout. Space Arc Engineering distributes Conbextra GP4 for power sector, heavy industrial, and large structural projects across Delhi NCR and Northern India.

Applications

• Heavily loaded machine base grouting requiring high compressive strength
• Large turbine and generator base plate grouting
• High-load crane and gantry pedestal grouting
• Structural column base plate grouting in high-rise and heavy structures
• Pre-cast connection joint grouting under high design loads
• Rail bearing and bridge shoe grouting requiring high strength specification

Key Advantages

• Higher compressive strength than Conbextra GP3 in the same family
• Dual shrinkage compensation — plastic and long-term stability
• Type C conforming to BS EN 1504-6
• Free-flow — pumped or gravity placed without vibration
• Non-shrink for positive contact and full bearing area
• Factory pre-blended for consistent site quality