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Bentonite grout mixer for piling works

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.

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  Content   2025-09-11

A bentonite grout mixer is a specialized piece of equipment used in piling and deep foundation construction to prepare bentonite slurry, which plays a critical role in supporting boreholes during drilling operations.

grout mixer for ground engineering application
grout mixer for ground engineering application

Purpose of Bentonite Slurry in Piling Works:
– Borehole Stability: Bentonite slurry forms a filter cake on the borehole walls, preventing soil collapse, especially in unstable or water-bearing strata.
– Cuttings Removal: It carries drill cuttings to the surface during rotary or CFA (Continuous Flight Auger) piling.
– Cooling & Lubrication: Helps cool the drill bit and reduces friction during drilling.
– Hydrostatic Pressure: Maintains pressure in the borehole to prevent ingress of groundwater.

Electric motor high shear grout mixer
Electric motor high shear grout mixer

Bentonite grout mixer applications in piling works:
– CFA Piling: Bentonite supports the hole before concrete is pumped.
– Bored Piling (Casing or Rotary): Used in conjunction with temporary casings or as a standalone support method.
– Diaphragm Walls: For trench stability during excavation.

outlet of colloidal mixer
outlet of colloidal mixer

Advantages of Using a Dedicated Bentonite Grout Mixer:
– Consistent slurry quality.
– Faster mixing compared to conventional agitators.
– Reduced material waste.
– Improved drilling efficiency and safety.

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