I'm repointing my old house with 1:1:6 cement:lime:washed sharp sand. I
can't find the washed sharp sand at the local builders merchants. Do any
of the sheds sell it?
If I use unwashed sand will I have problems?
Can I wash my own sand? If so, what type of soap should I use - only kidding.
| Niel A. Farrow) wrote:
| >Can I wash my own sand? If so, what type of soap should I use - only
| Yes, but you have to do it one grain at a time. Only kidding ;)
A Miele'll wash anything. Only kidding ;)
Build yourself an open wooden frame and put it on an old bed sheet across
it. Put the sharp sand on the top then run a hose over it for a minute or
two. Guaranteed to wash any sand you've bought. Even the cheapest of sharp
email@example.com (Andrew Gabriel) wrote in message
(Niel A. Farrow) writes:
There are two types of sand: bricklaying sand which is very fine and
plastering sand which is larger. (There is also a concrete grade but
it isn't really sand.) Get the coarser of the sand from your
builder's. It will be local and cheaper than the bagged stuff from a
Sharp sand is a reference to its edges which if not freshly quarried
may have smooth edges due to abrasion. It happens in sea sand and it
happens in desert dunes.
The only problem is the colour. Unless you know the original supply
you will just have to hope for the best.
Be warned - there are at least three grades.
We had a problem when we ordered plastering sand - the sand delivered
included very small stones (around 1-2mm) and was totally unsuitable for
Turned out this was a grade generally used for floor screeds.
The BM had sent the wrong kind, but it was only when we mentioned the small
stones they finally twigged what they had done.
This may be the standard 'sharp sand' which is also mixed with aggregate to
make concrete (the 'concrete grade' referred to above?).
I suspect there are regional variations as well, depending on the quarries
and local terminology.
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