Product Overview

Conbextra TS is a pre-bagged, factory-blended, thixotropic cementitious grout from Fosroc specifically designed for grouting applications where the standard fluid grouting approach of Conbextra GP2 or GP3 is unsuitable because of the angle of placement. In conventional pourable grouts, the consistency is sufficiently fluid to flow into and completely fill the gap beneath a base plate — but this same fluidity becomes a problem when grouting is required overhead (for example, pockets in the soffit of bridge decks, overhead anchor bolts in tunnels) or in a vertical orientation (inclined pockets in walls, vertical bolt pockets in rock). Conbextra TS uses a thixotropic (shear-thinning) admixture technology: the grout is stiff and paste-like at rest (it will not flow or slump), but when mechanical energy is applied (by mixing, trowelling, or forcing into a pocket), it temporarily becomes more fluid and workable, allowing it to be packed into cavities. On resting, it returns to its stiff consistency and stays in place. This makes Conbextra TS ideal for anchoring bolts into the soffit of beams, grouting vertical core holes in masonry or rock, and any other application where the grout must resist its own weight in the uncured state. The product is non-shrink, achieves high compressive strength, and is supplied as a ready-to-use powder requiring only the addition of clean water. Space Arc Engineering distributes Conbextra TS for bridge, tunnel, and infrastructure maintenance projects across Delhi NCR and Northern India.

Applications

• Overhead anchor bolt and stud grouting in bridge soffit pockets
• Vertical and inclined bolt pocket grouting in rock and masonry
• Grouting of overhead support brackets and hanger inserts
• Anchor grouting in tunnel linings and underground structures
• Vertical column anchor bolt pockets where fluid grout would run
• Overhead injection into voids where cementitious flow grout is not suitable

Key Advantages

• Thixotropic consistency — stiff at rest, workable under application force
• Non-shrink — expansion compensates for any drying shrinkage
• Achieves high compressive strength after curing
• Pre-bagged factory blend — consistent quality, just add water on site
• No metal aggregate — no risk of surface rust staining
• Suitable for overhead and vertical application without formwork leakage