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Why Lime Based
Mortar?
Edward Anthony Limited
(Gun-Point) use Lime Based Mortar as a general principal. Although we are
capable of using a variety of mortars and grouts we choose lime mortar because
of the superior benefits and 'autogenous healing'. Our extensive
knowledge and experience of our materials are used to provide suitable
specifications for any works, and all our specifications comply with the latest
European Standards regulations.
Here are some of the key features for
Lime Mortars
- By using Lime Based Mortar (LBM) the movement of buildings
during and after construction is easily absorbed. Cracking of LBM is minimal
and any that does occur tends to be micro-cracking rather than the major
cracking associated with more brittle sand:cement mortars. However, if micro
cracking does occur, LBM can heal the cracks and seal the surface, thus wholly
maintaining the integrity of the building.
This process is known as 'autogenous healing'
- LBM creates a better bond between bricks and blocks, leading to
more durable and longer-lasting buildings.
- Lime provides the optimum void fill of the sand present in the
mix. This increases the mortar surface area and therefore strengthens the
bond.
- By resisting water loss when placed between bricks and blocks,
LBM ensures precise contact between brickwork and mortar, and also ensures
complete hydration of the cement.
- Some building components contain soluble salts that can reach
the external surface, leaving unsightly deposits. LBM reduce the likelihood of
this efflorescence thanks to the reduced amount of water in the
structure.
- Thanks to the correct filling of perp-end joints and maximum
void fill using our system, the bond created by LBM is incredibly strong. Add
to that its inherent crack control and self-repair you can see why LBM is so
resistant to rain penetration, wind, freezing, thawing, wetting and
drying.
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