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Andrew Gabriel

In article ,
writes:
On 13 Aug, 10:43, "Alistair Ross" wrote:
On some of the older lime motared houses they used a fine pointing/grouting
portland type mix to give a fillet finish around windows and doors. When
removed it come off in longish strips and is very hard (cement mix ?) it
seems to be made with very fine sand. House in question built between
1900-1920

Anyone know what the 'mix' is ??

TIA....ttfn......Alistair

Dear Alistair
Not sure how you can tell if it is a Portland cement mix once it has
set

You could test a bit. Lime once set (chalk) would fizz and
dissolve in an acid (such as vinegar or kettle descaler).
Cement also dissolves in acids, but very much more slowly.

--
Andrew Gabriel
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