Lime Based, Cement-Free Grout

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LPB221 Heritage Grout - Stabilisation Grout For Listed Buildings


Description

Limelite LPB221 Heritage Grout is a lime based, cement-free grout designed to be used as a void filler in listed monuments and historic buildings where minimal strength is required.



Specify Limelite LPB221 Heritage Grout with your NBS Source account.




Packaging


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RECYCLABLE
PACKAGING

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WEATHERPROOF
PACKAGING


  • 25kg bag

Benefits of LPB221 Heritage Grout



Low strength gain structural grout for building renovation


Limelite LPB221 Heritage Grout has been developed as a low strength grout to fill cracks and voids and improve stability in historic buildings. It has a compressive strength of 0.5 N/mm2 after 7 days and 1.5 N/mm2 after 28 days.


High fluidity low density hydraulic lime grout for excellent penetration


This highly fluid low strength gain, low density hydraulic lime based grout is designed for low pressure injection grouting in listed and heritage buildings and enables excellent penetration of cracks, fissures and voids deep within the substrate. 


Low density grout to accommodate movement


Limelite LPB221 Heritage Grout is formulated to accommodate natural movement in the structure of old buildings, providing support while avoiding damage to existing stone or brick.


Low density grout to stabilise and protect existing structures


Limelite LPB221 Heritage Grout is ideal for filling and stabilising voids in rubble-fill masonry or stone walls, amongst other low-pressure grouting projects that require a high fluidity, structural grout. 


Proven performance


Limelite Heritage Grouts are trusted by conservation professionals and proven on high profile and challenging projects including the restoration of St Paul’s Cathedral, one of the most iconic buildings in London. 


Responsibly sourced


All of our products are manufactured in the UK and certified under BES 6001 Responsible sourcing. Tarmac was the first company within the cement and lime sectors to be awarded the BES6001 ‘Excellent’ rating across its entire product range.

Product features


LPB221 Heritage Grout has a wide range of features.


  • Lime based; Portland cement free
  • Blend of lime, pulverised fuel ash and clay
  • Factory supplied and quality controlled
  • Develops strength very slowly at normal temperatures
  • Typical strengths of 0.1N/mm2 at 28 days when mixed at a
    WSR of 3.0
  • Low density – lower stresses are put onto the structure
  • High yield – approximately 3m3 of mixed grout per tonne.
  • Gradual strength generation - reduces strain on the structure.
  • High fluidity to achieve maximum penetration into the substrate
  • High flexibility

LPB221 Heritage Grout Enquiry


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Product uses


LPB221 Heritage Grout is suitable for use in a wide range of applications.
The table shows suitability for building use.



IDEAL
SUITABLE
Concrete
Screed
Mortar
Render
Small concrete jobs
Patch repairs
Fencing
Brick/block work
Bedding slabs
Piling
Groundwork
Precast concrete
Workability

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