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Mining & Tunneling
Chemical, Mineral & Cementitious Grouting

Chemical, Mineral & Cementitious Grouting

Pre-Injection and Post-Injection Technologies

Unexpected water ingress and poor ground conditions during mining and tunneling operations can cause significant problems for underground contractors. Pre-injection and post-injection technologies from Master Builders Solutions offer high-performing chemical and non-chemical products suitable for:

Water and crack sealing, void-filling
Strata stabilization, ground consolidation, structure repair

Injection Videos:

Chemical, Mineral & Cementitious Grouting Products

Ground Consolidation

MasterRoc MP 300

Re-swells upon exposure to moisture after dry periods | Cured material is a highly flexible gel | Excellent adhesive properties, even on damp or wet surfaces

MasterRoc MP 325

Low viscosity, single-component hydrophilic chemical grout | For sand and silt strata consolidation | Environmentally safe with no solvents or toxic components

MasterRoc MP 650

Microfine cement for water sealing and ground stabilization | Easy penetration into tight joints, fissures, pore spaces

MasterRoc MP 900

Ultrafine cement with superior penetration characteristics | Suitable for pre-injection and post-injection

Injection Accessories

MasterRoc MP 231 CLN

Organic-based solvent that is nonflammable and is free of water | Suitable for cleaning injection pumps, lines, and other associated equipment | Flash point 414 °F (212 °C)

MasterRoc EQ 250 OR

Oakum rope used with BASF chemical grouts | Seal cracks, joints, annular spaces | Excellent absorption

MasterRoc EQ 512 PK and MasterRoc EQ 558 PK

Mechanical packers for high-pressure chemical grout injection | Expandable rubber sleeves | Snug fit and solid connection

MasterRoc EQ 538

Plastic (nylon) hammer-in packer equipped with a grease type fitting | Minimize concrete spall and packer moving or blowout | Prevent material leaking after injection

Void Filling & Cavity Fill

MasterRoc MP 358SC

Highly-reactive hydrophobic polyurethane | High flexibility and high structural strength | Not sensitive to water

MasterRoc MP 355

Polyurethane reacts with or without water | Forms rigid foam or rubber-like material | For stopping high volume water

MasterRoc MP 367 Foam

Highly reactive polyurea silicate foam for filling strata cavities | Closed-cell foam for water tightness | Excellent adhesion to wet substrates

Water & Crack Sealing

MasterRoc MP 368

Fast reacting polyurea silicate with excellent adhesion to concrete | Fast bond and compressive strength development | Does not absorb water

MasterRoc MP 368 TIX

Fast-reacting | Solvent-free | Specifically designed for rapid ground consolidation in strata with open cracks at the surface

MasterRoc MP 355 1K

Single-component hydrophobic polyurethane | For stopping medium water ingress | Adjustable reaction time

MasterRoc MP 355 1K DW

Sigle-component hydrophobic polyurethane with flexible foam | Use in structures for drinking water

Underground Chemical Grouting

Related Literature

Chemical Grout Application Guide

pdf (1.06 Mb)

Chemical Grout Performance Guide

pdf (1.39 Mb)

UGC Injection Brochure

pdf (16.43 Mb)

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