TELLING LIME - UNILIT NATURAL HYDRAULIC LIME GROUTS

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Telling Lime - Natural Hydraulic Lime Mortars.
Telling Lime manufacture a range of natural lime mortar products for various applications, together with stabilisation and consolidation grouts, mesh reinforcement and lime paints and finishes. The natural hydraulic lime products are manufactured using a modern day manufacturing process which replicates the strength, porosity, adhesion and flexibility of historic mortars.
The products are guaranteed against failure for 10 years and are warranted against defect under a professional indemnity insurance.

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Unilit B-Fluid X-B - A extremely fine natural hydraulic lime grout for bonding delaminated plasters and renders by  injection between detached mortar or plaster and their substrate.
Unilit B-Fluid - A range of natural hydraulic lime grouts for injection, static reinforcement, stabilisation and filling of voids within wall structures.

Unilit B-Fluid X-B Natural Hydraulic Lime Grout
An extremely fine, ready mixed mortar based on an inorganic, natural hydraulic lime binder, and a very fine filler. The mortar is characterised by a low content of soluble salts, a low modulus of elasticity and high vapour permeability. It is perfectly stable and carefully prepared to limit problems of microfissures and to prevent premature drying out. The binder will store a large quantity of salts, which may come from the substrate and migrate because of humidity, which guarantees the performance and extended life of the mortar.
The mortar is designed for injection between a detached mortar or fresco and the substrate and is injected in holes drilled in the loose render.
Colour: Beige.
Packaging: 25 kg bags, in powder form.
Density: 1000 kg/m3.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Granular size: = 0.01 mm.

The injection holes and cracks should be pointed with a suitable Unilit mortar as clause 610, 520 or 530.
Consult Telling Lime technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime are consulted early in the design process.

Grout Mix: Unilit B Fluid X B premixed natural hydraulic lime grout.
Mix proportions: Premixed - Seek advice from Telling.
Manufacturer: Telling Lime Limited, Booths Hall, Booths Park, Chelford Road, Knutsford, Cheshire WA16 8GS. Tel: 01565 756110. Fax: 01565 872999. Email: info@tellinglime.com Web: www.tellinglime.com
Product reference: Unilit B-Fluid X-B Natural Hydraulic Lime Grouting Mortar.
Application: Mix Unilit B-Fluid X-B with 15-32% of clean water. Mix mechanically with a slow speed electric paddle mixer for 5 to 8 minutes.
Insert mortar using a syringe with a maximum pressure of 1-2 bar, commencing from the lowest point of the detached mortar and working upwards in bands of about 100 mm in height, to avoid an overpressure and a complete detachment of the loose mortar. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.

Unilit B-Fluid Natural Hydraulic Lime Grouts.
A range of 5, ready mixed mortars designed for injection, static reinforcement or stabilisation, based on an inorganic binder of natural hydraulic lime and a filler. The mortars are perfectly stable and delicately prepared to limit problems of microfissures and to prevent premature drying out. They are characterised by a low content of soluble salts, a low modulus of elasticity and high vapour permeability. The mortars will store a large quantity of salts, which may come from the substrate and migrate because of humidity, which guarantees the performance and extended life of the mortar.
The mortars are designed for application by injection or pouring on walls, consisting of different components.

Unilit B Fluid 2, 3 & 4 grouts are formulated for injection, static reinforcement or stabilisation. These preblended mortars, with different granular sizes, allow application to fill voids within walls and masonry structures by injection or pouring. For example, the core of a wall consisting primarily of earth clay and stone will after severe water degradation be washed out to the degree where only the outer walls remain as masonry. The injection of Unilit B Fluid 4 provides linkage between the two façades to re-stabilise the structure. Unilit B Fluid 2 is a finer stabilising material used where cracking is evident due to movement or shear. The location and size of voids should be determined, and holes drilled in the masonry at intervals to ensure the flow of grout under gravity to fill the voids. Alternatively, where it is possible to access to the core by removal of masonry units the grout can be poured into the void, and mortar used to fill the accessible void as below.

Unilit B Fluid 2 has a granular size of 0 to 2mm, Unilit B Fluid 4 has a granular size of 0 to 4mm and Unilit B Fluid 0 has an extremely fine 0.3mm  granular size. The grading of aggregate ensures the flow of the grouts to maximise the filling of voids within the structure, and also allow the grouts to be pumped, although pumping only at low pressure is recommended to avoid overpressure within the structure.
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Colour:                                  Beige.
Packaging:
– Unilit B-Fluid 0:                  25 kg bags, in powder form.
– Unilit B-Fluid 1, 2, 3, 4:      30 kg bags, in powder form.
Density:                                 1600 kg/m3.
Tensile strength:                     0.6 N/mm2.
Compressive strength:           > 9 N/mm2 after 60 days; > 10 N/mm2 after 90 days.
pH:                                       > 10.5.
Fire classification:                  Non-flammable (M.O.)
Maximum granular size:
– Unilit B-Fluid 0:                  = 0.3 mm. Injected as a final grouting, to fill up any small remaining cavities.
– Unilit B-Fluid 1:                 1 mm.
– Unilit B-Fluid 2:                 2 mm. A fine stabilising materialwhere cracking is evident due to shear movement.
– Unilit B-Fluid 3:                 3 mm.
– Unilit B-Fluid 4:                 4 mm. Provides linkage between 2 facades to restabilise the structure.
Consult Telling Lime technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Natural hydraulic lime mortars are specialist products and it is recommended that Telling Lime are consulted early in the design process.

Grout Mix: Unilit B Fluid premixed natural hydraulic lime grout
Mix proportions: Premixed - Seek advice from Telling Lime.
Manufacturer: Telling Lime Limited, Booths Hall, Booths Park, Chelford Road, Knutsford, Cheshire WA16 8GS. Tel: 01565 756110. Fax: 01565 872999. Email: info@tellinglime.com Web: www.tellinglime.com
Product reference: Unilit B-Fluid 0. / 1. / 2. / 3. / 4.
Application:
Mix B-Fluid 0 with 25-30% of clean water.
Mix B-Fluid 1 and 2 with 18% of clean water.
Mix B-Fluid 3 and 4 with 14% of clean water.
Mix mechanically with a slow speed electric paddle mixer for 5 to 8 minutes.
Apply manually or with the aid of a pump. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.
After drilling a 40 to 50mm diameter hole and inserting a 20mm rustproof metal or glass fibre tube the B Fluid 2 can be poured in, using a suitable diameter funnel and hose to ensure the flow of grout, which will result in the stabilisation of the wall. Greater flow of grout can be achieved by flushing out the voids using clean or distilled water, or a mixture of 50% water: 50% ethanol or methylated spirit, this will further ensure the adhesion of the grout to the masonry. Where larger voids are present these may allow B Fluid 4 to be used, this can be determined from the flow of B Fluid 2. Where fine voids are present in the background, or where a reasonable flow cannot be achieved using B Fluid 2 a finer grout – Unilit B Fluid 0 can be used to further stabilise the background. A combination of these products can also be applied to result in the grouting up of both larger and smaller voids.
For voids in mortar joints the joints should be repointed to achieve a seal on the face of the joint, and where possible deep pointed to minimise the size of void, leaving sufficient access to the void behind to allow the application of grout as above. Unilit B Fluid grout can then be poured into the void as above, or injected using a syringe or skeleton gun..