MasterRoc MP 323

Solvent-Free Hydrophilic Grout for Rock Injection and Sandy & Silty Strata Consolidation

How Does MasterRoc MP 323 Work?

MasterRoc MP 323 is a sodium-stabilised colloid of silica oxide nanoparticles in a sol form. By adding a second accelerating component to the sol, the negatively charged nanoparticles can be made to collide and coalesce to form an impermeable stiff gel. The product is suitable for pumping as one component or as two components with in-line mixing.

Recommended Uses:

• Ground improvement

• Permeability reduction

• Strength increase

• Stabilisation of fluvial sands and silts

• Reducing the risk of liquefaction

Low-Pressure Permeation Grouting of Granular Materials:

• TBM launching and reception shafts

• Pre-injection before X-passage excavation

• Toe grouting and curtain grouting of ERS

• Plug grouting of shafts and boxes

• TAM (Sleeve) grouting with double packers

• Lance grouting

Fissure Grouting of Rock Strata to Permanently Reduce Water Ingress:

• Pre-injection of shafts and tunnels

• Toe grouting and curtain grouting of ERS

What Are the Unique Features of MasterRoc MP 323?

The benign nature of the mixed product enables excavation of treated ground to continue without special precautions for chemical exposure and no additional measures for spoil disposal.

What Are the Benefits of MasterRoc MP 323?

• Very low viscosity ensures excellent permeation at low pressure.

• By varying the accelerator dosage, consistent and precise gel times for periods between a minute to days are possible, ensuring complete filling of voids and a reduction in losses due to gravity.

• Both components are non-toxic and the product is suitable for use in most environmentally sensitive areas.

• Hydrophilic properties ensure good bonding to wet surfaces.

• Stable and continuous strength gain over time.

• Very little syneresis in wet conditions.

• Simple mixing and handling on-site.