Hydraulic Lime Mortar

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Hydraulic Lime Mortar
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When people refer to lime mortar they're
generally referring to mortar made with hydraulic
lime or fat lime putty, sand and no cement.
However, for most modern bricklayers and
builders, the only exposure they've had to lime
products is hydrated lime.
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Hydrated Lime is readily available at the local
builder's merchant and can be used to increase
the workability of cement mortar. It is used more
widely in schools and training centres where it
is mixed with sand (no cement) to make a mortar
that doesn't set, ideal for teaching brickwork.
Naturally, many people new to lime mortar assume
that hydrated lime is the key ingredient, they
know by experience that they'll need cement to
make it set. Unfortunately this couldn't be
further from the truth and is pretty much
contrary to the use of lime mortars altogether.
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True lime mortars contain hydraulic lime or fat
lime putty (non-hydraulic lime). These two types
of lime do indeed set with no need of cement,
albeit more slowly than cement. The real goal
with lime mortar is to eliminate the use of
cement which is unnecessarily strong, rigid and
is not breathable
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Natural lime mortars are flexible, allowing for
movement in the building and thus preventing
cracks in the masonry. Furthermore, they are
breathable (vapour permeable), drawing the vapour
present in the masonry back out into the air.
This breathability naturally draws and damp and
also helps to prevent freeze thaw action.
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For more update , visit us
https//limetec.co.uk/hydraulic-lime-mortars/