The two elements (A) and (B) and the piece (C) are characterised by an injection system enabling the circulation of a grouting compound (I) and the filling of the voids.

Disclosed are a survey and control apparatus (10) for grouting a prestressing duct (15) and the method of use thereof.

The invention concerns an injection grout containing: water, a cementing material, at least 100 kg/m3 of fly ash derived from coal combustion in circulating fluidised bed.

A grouting composition, a method of grouting and a formation so grouted.

The air operated grout tool allows for the neat, precise, effective and efficient application of grout.

The pressure causes a smooth and continuous flow of grout from the air operated grout tool.

The air operated grout tool is a device used to apply grout directly between tiles.

The grout material discharge portion is expanded by an injection pressure of that grout material which is injected into the grout material injection portion.

The two elements (A) and (B) and the piece (C) are characterised by an injection system enabling the circulation of a grouting compound (I) and the filling of the voids.

The shot sleeve is transferred to an injection station (82) while the molten alloy is cooled to a semi-solid slurry (51) and a globular, generally non-dendritic microstructure.

Once the sealing grout has hardened, the method comprises a novel step of injecting a consolidation grout into the ground (S) via at least one tube (12) of the pre-supporting beam (V1,..., VN).

The assembly is also provided with an onboard power generator and water pump for flushing the grout out of the injection lines.

Did you know that jet grouting and compaction grout operations are currently underway at Rideau Station west entrance?

The ratios of foam and slurry can be adjusted on a continuous basis to compensate for variations in grout quality which are observed at the injection site.

Disclosed are a survey and control apparatus (10) for grouting a prestressing duct (15) and the method of use thereof.