Category: Telling Lime Products Mortars hydraulic lime mortars
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Telling Lime Products
Mortars hydraulic lime mortars
Unilit Natural Hydraulic Lime Products
A range of natural hydraulic lime mortars, traditional and insulating
renders, grouts and decorative finishes that combine the traditional
performance characteristics of porosity, adhesion and flexibility with
modern day demands for consistency in manufacture, versatility and ease
of application.
Telling participate in a European distribution network for Unilit
natural hydraulic lime which now extends to twelve countries. Leading
knowledge has been gained by tests and evaluations carried out in the
Universities of Lueven in Belgium and Napier in Scotland. The technical
sales team in the UK shares and has contributed to the expertise
developed by the use of the Unilit products over 20 years across Europe.
Unilit hydraulic lime products continue to enjoy 20% annual growth of
sales.
Natural hydraulic lime products have the following characteristics:
- The successful replication of the inherent qualities of historic
lime mortars assures compatibility with all natural mineral and lime
mortar backgrounds
- Conservation work may be continuous during winter months with
limited protection require
- Resilience to flooding both in construction and remedy
- Mortars that do not leech free lime deposits on to the mortar
face
- Tolerance of damp and salts transfer during setting without
detriment to performance
- Ability for work to be completed more quickly and economically
without specialist skills
- Mortars that never become harder than the substrate to which
they are applied
- Moisture is extracted naturally and without time limit from
masonry backgrounds
- When used with Foamglas® (66% recycled cellular glass) as the
base for our natural hydraulic lime, a system of unsurpassed impact
resistance that is non combustible and waterproof is created
- Whilst harmful CO² emissions occur during the production of both
cement and lime, lime mortars are burnt at a temperature of 900ºC
and cement at >1450ºC. Additionally, a study of the lime cycle
demonstrates that an equal amount of CO² is retained during the
carbonation/setting process of natural hydraulic lime as is released
during the burning of limestone
Applications:- Natural hydraulic lime is suitable for use in both
restoration and new build to promote expansion joint free construction,
due to the mortar allowing the structure to move as individual elements
rather than as a mass.
Unilit hydraulic lime products conform to the European Standard
ENV-4951, NHL 2 - 3.5 for natural hydraulic lime.
Description:- Unilit hydraulic lime mortars are porous and allow the
background to breathe and stabilise. Lime mortars permit natural
movement of the façade to enable these to be traditionally created
without the requirement for movement joints. By the selection of the
sand grading and the mix proportions the mortar strength is controlled
to ensure compatability with the substrate. Natural earth pigments are
used to produce selected coloured mortars for use with natural stone and
brick. A comprehensive range of mortars has been formulated to achieve
particular requirements. Unilit 20 is a hydraulic lime blended with
perlite to provide a natural insulation mortar that eradicates
condensation and thermal shock. This is of particular relevance for work
on buildings of architectural or historical importance. Its light weight
makes it ideal for application in thicknesses from 15-100mm on weak
substrates. Unilit 30 is suitable for salts containment applications
such as in cellars and against rising damp.
Building or masonry mortars are designed for new build both in brick and
stone. Unilit lime mortars are supplied in variable forms, as a hydrate
for blending with local sands, pre-bagged or pre-blended with limestone
sand of an appropriate grade.
Unilit grouts and mortars are available for stabilisation and
consolidation work. Different formulations match the physical and
mechanical properties of the original construction. Their qualities of
vapour permeability, mechanical resistance and excellent penetration
make them particularly suitable. They may be applied by injection,
pressure pointing and gravity flow. Grouts are available in 0-4mm
grades, supplied pre-bagged.
Insulated Render
In new construction the demand for a rendered insulated cladding
system that was sustainable of source and made from recycled materials
has led to a collaboration between PCE (UK) Ltd and Telling Lime for
their Foamglas®, a 66% recycled cellular glass and our hydraulic lime
mortars. Inert, waterproof, non-combustible and highly resistant to
impact, the system is particularly suited to schools and public
buildings where most insulated render systems are incapable of matching
the above characteristics nor those of an ecologically beneficial
selection criteria.
Lime Paints & Finishes
A comprehensive range of finishes is available in a choice of
textures and colours to maintain the compatibility and porosity of the
background. Finishes include the Corical range of lime paints, Venetian
polished plasters, simulated marble coatings, granular aggregate
finishes and roughcasts. Bonding media ensure perfect adhesion and
compatibility for façade upgrading, negating the necessity to hack back
to the substrate.
Hydraulic Lime Floor Screeds Concrete & Bending Layers
Unilit Natural Hydraulic Lime mortars, bedding layers and lime
concrete can be used in new construction, conservation and restoration
for general purpose screeds, wearing screeds, bedding and pointing
mortars and re-laying of original stone flags. Natural hydraulic lime
allows the application of slabs and floor screeds without the
requirement for expansion or slip joints and will also prevent
differential movement between the floor screed and the walls of lime
built buildings. Application without a DPM will allow the floor to
"breathe" with moisture from beneath the screed being evacuated as a
vapour. The control of moisture build up below the screed prevents salt
laden vapours from being diverted in to the existing walls. Where stone,
paving or tiles are then to be laid over the screed the use of a Unilit
bedding mortar will ensure the performance of the screed is maintained
and the compatibility of the mortar with the stone. Application of lime
screeds in conjunction with underfloor heating is becoming popular to
achieve improved stability, an open pore structure and a low coefficient
of thermal expansion. Unilit mortars prevent the build up of moisture
within the floor and remove the risk of thermal bridging and movement.
An enhanced storage of heat is achieved in comparison with cementitious
equivalents. Telling provide an accredited CPD presentation for
specifiers who wish to increase their knowledge in lime mortar
technology.
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Telling Lime Products
Primrose Avenue
Fordhouses
Wolverhampton
WV10 8AW
Tel: 01902 789777
Fax: 01902 398777
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