Grout Equipment

High-pressure borehole grouting equipment is not merely a single grouting pump but a complete system configured based on factors such as borehole depth, grout type, and operating pressure. Typical components include a high-speed grout mixer, an agitated storage tank, a high-pressure grouting pump, a pressure control unit, grouting pipelines, a flow meter, and a borehole packer.
During operation, the mixer first prepares a homogeneous grout mixture according to the design ratio. The grout is transferred to the storage tank, where it is kept under continuous agitation, before being pumped through the pipeline into the borehole. The borehole packer seals the grouting section, allowing the grout to be injected into rock fractures, soil voids, or underground cavities at the specified pressure.
Depending on project requirements, the equipment can be configured as a stationary, skid-mounted, trailer-mounted, or containerized unit to suit specific transportation and on-site setup conditions.

The Colloidal Bentonite Mixing Plant for Grouting utilizes high-speed colloidal mixing technology to rapidly disperse bentonite particles in water, producing a slurry that is fine, uniform, and suitable for pumping. This equipment can be used independently to prepare bentonite slurry or to process composite grouting materials—such as cement-bentonite mixtures—according to specific engineering formulations.
In applications such as foundation reinforcement, tunnel grouting, dam seepage control, and rock fissure treatment, the uniformity and stability of the slurry directly impact material pumpability, dispersion range, and overall grouting effectiveness. Although bentonite offers excellent suspension, lubrication, and impermeability properties, it absorbs water and swells rapidly; consequently, the use of conventional low-speed mixing equipment often leads to the formation of clumps and localized concentration inconsistencies.

High-quality slurry preparation and stable, pressurized delivery are fundamental to ensuring effective bentonite grouting. By integrating high-speed mixing, slurry storage, continuous agitation, and pressure injection capabilities, the Bentonite Slurry Mixing and Injection Plant streamlines construction workflows while enhancing slurry uniformity and grouting continuity.
Whether for tunnel reinforcement, foundation treatment, borehole grouting, dam seepage control, or mining projects, a properly configured bentonite mixing and injection plant enables contractors to minimize material waste, boost operational efficiency, and achieve consistent grouting quality.

Bentonite plants for diaphragm walls are widely used in projects such as subway stations, basements, deep excavation pits, underground passageways, and large-scale foundations. During the trench excavation process, the stability of the trench walls directly impacts both construction quality and safety. A stable and continuous supply of bentonite slurry is particularly crucial when working in loose soil layers, areas with high groundwater levels, or complex geological conditions.

In tunneling, pile foundation, diaphragm wall, and trenchless engineering projects, the preparation of bentonite slurry involves more than simply adding bentonite powder to water. Factors such as the degree of slurry hydration, viscosity stability, continuity of supply, and the precise adjustment of pumping parameters directly impact on-site construction efficiency.
If the slurry production rate fails to keep pace with grouting demands, work may be halted while waiting for the material; inadequate mixing can lead to clumping, sedimentation, and pipeline blockages; and a mismatch between pumping pressure and ground conditions may result in insufficient grout volume, slurry loss, or adverse changes in the geological formation.
Consequently, an increasing number of construction projects are adopting integrated bentonite mixing and grouting plants. These systems consolidate the preparation, circulation, storage, and pumping of bentonite slurry into a single unit, thereby establishing a more stable and continuous on-site supply process.

The Bentonite Injection Plant for Tunnel and Foundation Projects is an integrated equipment system combining high-speed slurry mixing, low-speed storage, and pressure injection. It ensures a continuous and reliable supply of slurry for applications such as tunnel grouting, foundation reinforcement, borehole wall stabilization, underground seepage control, and deep foundation construction.
In tunneling, underground engineering, and foundation treatment projects, factors such as loose soil layers, rock mass fractures, and groundwater seepage can compromise construction safety and structural stability. To improve ground conditions, construction teams typically need to prepare a uniform, stable bentonite slurry and inject it—at design-specified pressures—into boreholes, fractures, or subsurface voids.

By integrating high-speed mixing, low-speed storage, and pressure injection into a single system, the bentonite injection grout plant significantly improves slurry uniformity and operational continuity. Whether for tunneling, borehole wall stabilization, ground improvement, diaphragm walls, pipe jacking, or seepage control projects, a properly configured bentonite grouting station ensures a stable supply of slurry.
For contractors, the ideal equipment is not necessarily the model with the highest capacity or pressure, but rather a system that precisely matches the slurry formula, geological conditions, project volume, and site environment.
Leadcrete Equipment specializes in the R&D and manufacturing of grouting equipment, offering bentonite injection grout plants with various capacities, pressures, flow rates, and power options tailored to specific project requirements. From equipment selection and system configuration to operational guidance and after-sales service, we are committed to providing reliable, customized mixing and grouting solutions for clients in tunneling, foundation work, drilling, and underground engineering.

The bentonite grouting and mixing system for tunneling is an integrated slurry preparation and grouting unit custom-engineered for tunnel excavation projects. It is designed to handle key tunneling applications such as synchronous grouting for shield machines, annular gap backfilling, and borehole wall stabilization in complex geological conditions. The system supports operations including synchronous backfill grouting, slurry-supported micro-tunneling, diaphragm wall stabilization, and borehole wall support in complex sand-and-cobble strata, while also meeting requirements for drill cutting suspension and transport, as well as the lubrication and cooling of drilling tools.

The Colloidal Grout Mixer Pump Unit is a compact grouting system developed for the preparation, storage and controlled delivery of cement-based and bentonite-based grout. By integrating a high-shear colloidal mixer, an agitating tank and a grout pump on one working platform, the unit provides a practical solution for contractors carrying out borehole injection, micropile grouting, foundation reinforcement and ground improvement work.

Specific applications of the Bentonite Grouting System for foundation work:
Sealing leaks in existing concrete and masonry foundations
Anti-seepage reinforcement for foundations of tunnels, sheet pile joints, and underground utility galleries
Underwater grouting for soft foundations of immersed tube tunnels to minimize post-construction differential settlement
Stabilizing loose soil layers and enhancing the overall structural strength of the foundation

The Bentonite Grout Plant for Borehole Injection integrates a 500L high-shear grout mixer, a 700L agitator and a grout pump with approximately 100L/min output and 0-50 bar pressure. It is suitable for bentonite slurry, cement grout and cement-bentonite mixtures used in micropile construction, foundation reinforcement, soil stabilization, anchoring, tunneling and geological borehole injection.

A complete colloidal grout mixing pump unit integrates high-shear colloidal mixing and pressure grouting pumping into a mobile or stationary system. It is used to produce and inject cement, chemical, or polymer grouts into rock fissures, soil pores, tunnels, and structural voids.

The fully automatic cement grout mixer station is a newly designed, containerized, high-capacity grout mixer widely used in various grouting projects.
Typical Applications:
Tunnel & mining grouting (goaf filling, water sealing)
Highway / railway / bridge foundation consolidation
Dam & hydraulic engineering seepage control
Underpinning & soil stabilization

A complete grout station for micropile projects is an integrated, skid‑mounted or mobile system that combines high‑speed mixing, agitation, and high‑pressure grout pumping to produce and deliver cement/bentonite slurries for micropile installation, foundation reinforcement, and pressure grouting. It ensures continuous, controlled grouting for reliable pile‑soil bonding and load capacity.

Leadcrete is Jet grouting pump manufacturers for many years. High pressure Jet grouting pump is designed and made for permeation grouting, compaction grouting, backfilling grouting, curtain grouting, high pressure split grouting, etc. grouting methods. 

High-pressure cement grouting pumps typically employ a reciprocating piston or plunger structure. A ​​crankshaft and connecting rod mechanism converts rotational motion into reciprocating linear motion of the piston, enabling the suction and discharge of the grout. Through the alternating action of the suction and discharge valves, the grout is compressed to a high-pressure state, and then transported through pipelines to the drill bit or grouting point.

A small colloidal grout mixer with agitator is a compact, high-efficiency mixing system designed for preparing stable, homogeneous grouts—especially those requiring full hydration of bentonite, cement, or chemical additives—in small- to medium-scale ground engineering, piling, and grouting projects.

A grout mixer for ground engineering applications is a critical piece of equipment used to prepare high-quality, homogeneous grouts for soil and rock stabilization, foundation support, water control, and deep excavation projects. These mixers are engineered to handle a wide range of materials—including cement, bentonite, microfine cements, fly ash, polymers, and chemical grouts—with precision and consistency.

An electric motor high shear grout mixer is a powerful and efficient mixing solution designed for the rapid and uniform preparation of cementitious grouts, bentonite slurries, polymer mixes, and other viscous construction fluids. These mixers are widely used in piling, ground stabilization, diaphragm walling, tunneling, and grouting applications where consistent, lump-free slurry is critical.

A bentonite slurry mixer is a crucial piece of equipment in geotechnical and piling construction, specifically designed to efficiently mix bentonite clay with water to produce a high-quality, stable slurry. This slurry is primarily used to stabilize boreholes during deep foundation works such as bored piling, diaphragm walls, and horizontal directional drilling (HDD).

Bentonite grout mixer for piling works is a type of equipment designed specifically for pile foundation construction. It combines mixing, storage, and pumping functions. It can efficiently mix bentonite, cement, water, and other materials, and inject the grout into the pile hole through a pumping system to achieve construction goals such as waterproofing, reinforcement, and filling.

A colloidal grout mixer is a specialized type of grout mixer that uses high-speed shear mixing to produce ultra-fine, homogeneous grout mixtures. It is ideal for applications requiring smooth, lump-free grout, such as injecting microfine cement, chemical grouts, or resin-based materials into fine cracks, soil fractures, or rocky formations.

A water and cement grout mixer with an agitator is a critical tool in construction, geotechnical, and industrial projects where precise, durable grout mixtures are required. It is used for water, cement, and additives (e.g., sand, bentonite, accelerators) into a uniform, pumpable grout.

A bentonite-cement grout mixer is a specialized piece of equipment designed to blend bentonite (a swelling clay), cement, water, and optional additives into a homogeneous, pumpable grout. This mixture is critical in applications requiring soil stabilization, waterproofing, or void filling, such as tunneling, mining, and geotechnical engineering.

Bentonite cement grout mixer and agitator is widely used in geotechnical, tunneling, and construction applications for soil stabilization, waterproofing, and void filling.
Bentonite cement grout mixer and agitator features:
Efficiency: Continuous agitation allows uninterrupted pumping, reducing downtime.
Quality Control: Precise water-to-solid ratios ensure consistent grout properties.
Durability: Heavy-duty construction (e.g., stainless steel lining, abrasion-resistant paddles) withstands abrasive mixes.
Versatility: Adaptable to various grout formulations (e.g., high-bentonite for sealing, high-cement for strength).

Compact 750L grout mixer and 1500L agitator applications:
Tunneling & Mining: For rock bolting, shotcrete, and ground support.
Civil Engineering: Bridge deck repairs, dam sealing, and foundation grouting.
Oil & Gas: Well cementing and pipeline stabilization.

A high-speed grout mixer is a critical component in modern tunneling operations, especially for applications like backfill grouting, ground improvement, and sealing voids behind tunnel linings. When filling tunnels — particularly those constructed using Tunnel Boring Machines (TBM) or shielded tunnel boring machines — high-speed mixers ensure the rapid and consistent production of large volumes of pumpable, stable grout.

Grout mixer used for tunnel excavation application:
Ground Stabilization: Used to inject a stable grout mixture to improve the load-bearing capacity of weak soils and prevent ground settlement during tunneling.
Water Ingress Prevention: Essential for sealing voids and fractures in the rock formation to prevent water ingress, which can compromise the stability of the tunnel.
Rock Bolting and Anchoring: Grout is used to fill the spaces around rock bolts and anchors, enhancing their holding capacity and ensuring the structural integrity of the tunnel.
Void Filling: After excavation, grout is injected to fill voids and cavities, reducing the risk of collapse and ensuring a safe working environment.
Curtain Grouting: Creates a grout curtain around the tunnel to act as a barrier against groundwater, protecting the tunnel from water damage.

Electric power cement grout mixer operates on electricity, making it suitable for both indoor and outdoor use where electrical power is available. It eliminates the need for manual labor or fuel-powered engines, reducing fatigue and emissions. Electric power cement grout mixer is built with robust materials such as stainless steel, the mixer is designed to withstand the abrasive nature of cement and bentonite, ensuring longevity and reliability.

A colloidal cement grout mixer is a specialized type of mixing equipment designed to produce highly fluid, stable, and homogeneous grouts, especially for applications requiring fine particle dispersion, such as in soil stabilization, under-reaming, diaphragm wall construction, or chemical grouting.