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Sodium Bentonite Grout
Product Code: 6090

 10 Pack Pallet (¼ Tonne):   £214.80 Inc VAT and delivery 



Sodium Bentonite Clay. Provides high penetration and low permeability characteristics to grouts for thermal and water wells, placing borehole instrumentation, and with lime for void fill to walls in historic buildings.

Pack size: 25kg. (Approximately 25litres)

Product Size: Powder

Description & Sourcing:
Bentonite is a variety of clay which is predominantly composed of the mineral Montmorillonite. The clay is thought to be a product derived from the decomposition of volcanic ash, and is worked from licensed deposits located in the USA, Greece and Turkey. This Sodium based clay is generally known as a "swelling clay" due to the ease with which it takes up water and its ability to form low permeability thixotropic gels.


Bentonite Enhanced Cement Grout.
The subject of composition and chemistry of bentonite enhanced cement grout is vast. This activated sodium bentonite power is offered without recommendation as an enhancement to cement and lime based grouts

Bentonite is a very tolerant material that will provide for a wide range of thixotropic mixes with a range of viscosities, and has applicability with OPC and slag based cements, as well as traditional lime mortars and sand filled mixes.

When used for setting geo-technical instrumentation in boreholes the addition of bentonite to a cement grout will provide enhanced properties over a cement only grout in that it will improve penetration and resistance to wash-out, whilst reducing permeability and overall increasing cement hydration time.

Whilst the thoroughness of mixing and effective pumping will have a significant effect on grout quality, it is the water/cement ratio that determines the ultimate strength of the grout. To achieve accurate mixing ratios it is important that water and cement are mixed first with the bentonite clay being added as a third component.

A wide range of cement/grout ratios are used for an equally wide variety of applications. Lean mixes with as little as 5% (by weight) of bentonite will decrease shrinkage and bleeding of water from cement grouts typically used for placing borehole casings, whilst mixes containing up to 40% (by weight) of bentonite can be mixed to carry high water contents for low strength, high water/cement ratio grout for placing bore instrumentation through soft soils.

Cement Filled Bentonite Grout.
Bentonite clay can be used either as a "stand alone" grout or with a proportion of cement utilised as a filler/extender. Typically mixes comprise (by weight) two parts bentonite to one part cement. The effect of the addition of cement is to stabilise the bentonite suspension. Mixes tend to be used for sealing landfill gas wells and to isolate horizons within exploratory drilling.

Appearance: Beige free flowing powder.
pH: 9-10

Price Promise:
All prices in include UK VAT and delivery to mainland locations in England, Wales and Southern Scotland - There are no hidden charges on checkout.

Happy to export worldwide - please enquire for shipping rates

This product option is supplied packed in safe and easy to handle weatherproof packs stacked on a wooden pallet. Packs are stretch wrapped onto the pallet for added protection and security during delivery.

Pallets are delivered by national couriers and off-loaded onto a level hard-standing using vehicle tail-lift and pallet truck. Please advise during checkout or contact our office if you have specific delivery requirements or concerns.

Both the immediate product wrapping, the stretch wrap and the wooden pallet can be recycled.

Specify: Sodium Bentonite Clay Grout from Specialist Aggregates.

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Sodium Bentonite Grout
Sodium Bentonite Grout
Sodium Bentonite Grout - Collect
Sodium Bentonite Grout - Collect

Bentonite Wiki - Powder

Bentonite Wiki - Powder

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Alternative Volumes 
Sodium Bentonite Grout
Sodium Bentonite Grout
Sodium Bentonite Grout - Collect
Sodium Bentonite Grout - Collect
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