From:
Nick Durnan <durnan@zzzzzzzzzzzzzzz>
Date:
Tue, 7 Dec 2004 10:09:08 +0000
Subject:
mortar for limestone blocks
Marcus
I would recommend 2 or 2.5 parts of washed well graded sharp sand to 1
parts of moderately hydraulic lime (NHL 3.5). A small amount of fine
sand or limestone dust would help the plasticity. If you want a really
plastic mix then use 2.5 parts well graded sand to 1 part of lime putty
plus 10-15% pozzolan (metakaolin is best but trass, pfa or low fired
brick dust work nearly as well).
Nick
Quoted text begins.
What are the right combinations of sand, lime and portland? I know it
depends on the project and the stone itself. Ian Cramb in the Art of
the
Stonemason recommends 7 parts sand: 1 lime: 1 portland.
End of quote.
Nicholas Durnan
Thrift House
Bow Street
Langport
Somerset TA10 9PS
Tel 01458 259094
http://www.nickdurnan.co.uk
- References
- message 00464: mortar for limestone blocks - George Graham (06 Dec 2004)
- message 00466: mortar for limestone blocks - John Twilley (06 Dec 2004)
- message 00471: mortar for limestone blocks - Marcus (06 Dec 2004)
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