Ultra-Low Strength Masonry Grout
A ready mixed non-hydraulic CL90 hydrated lime grout for the void filling and consolidation of solid masonry walls.
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More about Ultra-Low Strength Masonry Grout
Cornerstone Ultra-Low Strength Masonry Grout is a dry ready mixed lime grout designed for pumping, pouring, or needle injecting into solid-walled masonry to effectively fill gaps, spaces or cavities.
Engineered with precision, using non-hydraulic CL90 hydrated lime, pozzolans, graded powdered mineral fillers and conservation-appropriate additives to create high-flow grout with all of the virtues of a pure Lime grout. Available as standard with Lhoist CL90, with the addition of Metakaolin. Other binders and mix ratios are available upon request.
Well-suited for projects looking for the lowest strength and highest breathability we offer in our standard range.
- Lowest strength and highest breathability of the range
- Supports stability without excessive strength
- A fine texture helps to fill the smallest of gaps
- Ultra-porous and flexible
- High-flow eliminates segregation and blockages
- Ensures a durable and resilient bond
- High vapour permeability for improved moisture management
- High flexibility helps accommodate building movement
- Aids in combating water penetration
- Helps prevent water pooling inside masonry
Suitable for void filling and consolidation of masonry walls, where the binder strength is appropriate for the host background or surface. Not suitable as a tiling or floor grout.
Ultra-Low Strength Masonry Grout is ideal for repairing, reinforcing, and filling voids in solid masonry. Appropriate for various project types, including conservation, renovation, or sustainable construction.
A 12.5kg bag will produce approximately 14.5-16 litres of mortar, depending on the water addition rate.
Supplied in 12.5kg polythene-lined and colour and batch-coded paper bags for easy identification on-site. Palletised for ease of transport, storage, and handling. FIBC tonne bags are also available.
Do not use in temperatures below 5°C or above 30°C, or if freezing conditions are predicted within the following few weeks, including wind chill. Protect from adverse environmental conditions, including frost, rain, direct sunlight and drying winds.
Store in covered and dry conditions, protected from environmental conditions, including water, damp or frost and clear from the ground. Always reseal packaging if product is still present.
Always read the available documentation before use. See the Download Documentation section below for more detailed product information, application guidance and datasheets.
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