Fosroc Conbextra GP2
Conbextra GP2 is supplied as a ready to use dry powder. The addition of a controlled amount of clean water produces a free flowing, non-shrink grout for gap thicknesses up to 100mm.
Conbextra GP2 is a blend of Portland cement, graded fillers and chemical additives which impart controlled expansion in the plastic state whilst minimising water demand. The low water demand ensures high early strength. The graded fillers are designed to assist uniform mixing and produce a consistent grout.
- Gaseous expansion system compensates for shrinkage and settlement in the plastic state
- No metallic iron content to cause staining Pre-packed material overcomes onsite batching variations
- Develops high early strength without the use of chlorides
- High ultimate strength ensure the durability of the hardened grout
- Free flow ensures high level of contact with load bearing area
Technical support
An experienced technical advisory team is available to give technical service on request.
An experienced technical advisory team is available to give technical service on request.
- All grouting shown on the drawing must be carried out with a pre packed cement based product which is chloride free.
- It shall be mixed with clean water to the required consistency. The grout must not bleed or segregate.
- A positive volumetric expansion shall occur while the grout is plastic by means of gaseous system.
- The compressive strength of the grout must exceed 50 N/mm2 at 7 days and 60 N/mm2 at 28 days.
- The flexural strength of grout must exceed 9N/mm2 @ 28 days.
- The fresh wet density of the mixed grout must exceed 2150 kg/ m3.
- The storage, handling and placement of the grout must be in strict accordance with the manufacturer's instructions.
Foundation surface
The substrate surface must be free from oil, grease or any loosely adherent material. If the concrete surface is defective or has laitence, it must be cut back to a sound base. Bolt holes and fixing pockets must be blown clean of any dirt or debris.
