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Posted: Fri Jun 29, 2012 5:38 pm
by dig dug dan
alking like a real landscaper now. If you haven't laid them straight you just call it rustic


or as my mate says "olde wolde"!

Posted: Fri Jun 29, 2012 5:48 pm
by Bilabonic
Looking good, thought it was a Limestone. I want to do similar with sandstone but want a more uniform sett but struggling to find something 'uniform'.

When i layed a sandstone circle my bed ended up about 4" at one edge..lol

Posted: Fri Jun 29, 2012 5:49 pm
by Bilabonic
Plus i have only ever bought one tub of FEB, always use Fairy:(

Posted: Fri Jun 29, 2012 6:37 pm
by k13wjd
to be honest, i did look at square cut granite cobbs, but they looked dull and lifeless. These have all sorts of crystals through them, and glisten in the sun.


Pebbles came today, ton bag filled to the brim with very nice black pebbles. £120 delivered. Much cheaper than anywhere else i could find !!!!

Dirty, so they need a wash.

Testing a new chemical tonight for stain removal, HG31. Photo's to follow.

Posted: Fri Jun 29, 2012 7:51 pm
by DNgroundworks
Nice job for a first timer, but if it was me i would have got the old stringline out for the cobbles, but.....that dont matter if you are happy with them.

:)

Posted: Fri Jun 29, 2012 8:51 pm
by k13wjd
Cheers lad.

Tried this cleaner on a smashed peice. Doesn't do shit. in contact with pavestone as even the ones that i have not laid are stained. Im starting to think somone somewhere spilled something on these !

Posted: Sat Jun 30, 2012 1:31 pm
by Bilabonic
Get some 35% Hydrogen Peroxide of Fleabay and a sprayer, water it down as rquired.

Posted: Sat Jun 30, 2012 1:43 pm
by London Stone Paving
Whats that stuff then Bilbonic?

Posted: Sat Jun 30, 2012 1:49 pm
by London Stone Paving
Had a look myself

Pure hydrogen peroxide has a pH of 6.2; thus it is considered to be a weak acid. The pH can be as low as 4.5 when diluted at approximately 60%

DONT USE IT ON BLACK LIMESTONE

Posted: Sat Jun 30, 2012 2:15 pm
by lutonlagerlout
i use hydrogen peroxide on my teeth
6%
LLL

Posted: Sat Jun 30, 2012 4:37 pm
by Carberry
k13wjd wrote:Cheers lad.

Tried this cleaner on a smashed peice. Doesn't do shit. in contact with pavestone as even the ones that i have not laid are stained. Im starting to think somone somewhere spilled something on these !
If they're still dusty from being cut when delivered, a little bit of water mixed with the dust can turn it in to a sh*tty cement like paste which stains stuff.

Posted: Sat Jun 30, 2012 7:07 pm
by k13wjd
IM putting nothing on it until I know its safe! I have test peices, so can use those. Tested the hg stuff last night, waste of time. Kinds need to get on with pointing, nearly been down for a week. How much Poly will I use, 25kg? Just about to go measure the joints

Posted: Sat Jun 30, 2012 7:21 pm
by k13wjd
Right, looks like 45m linear, 20mm wide at surface so call it 30, 30 deep average. (3x3)x4500=40500cm3 thats 40 litres. Anyone know volumes to weight of gtfk?

Posted: Sat Jun 30, 2012 8:16 pm
by k13wjd
Right, lets get complicated. Nobody comment on Si units ;-)

gftk 840 n figures, take 100mmx100mm setts @ 9kg/m2 for 10mm wide 30mm deep joints

There would be around 81 setts in a m2, given 10mm jointing, (9x9) allowing around 18m of linear pointing.

area of pointing = (10x30)/10 = 3cm2
Volume of pointing= 3cm2 x 1800( cm linear) = 5400cm3
Subtract the volume where the horiz meets the vertical(64 points @ (3cmdeepx1cm2)=3cm3) =192cm2

lets call it 5200m3/m2
= 5.2 litres for every m2. we know a m2 of 100x100mm sets will need 9kg of product (9/5.2=1.73)

Density = 1.73kg/L

My paving pointing has a estimated volume of 40L, so 40x1.72=69.2kg.

That'll be 3 tubs then. out of my budget. easypoint it is then :-)

Posted: Sat Jun 30, 2012 8:30 pm
by k13wjd
Carberry wrote:If they're still dusty from being cut when delivered, a little bit of water mixed with the dust can turn it in to a sh*tty cement like paste which stains stuff.
Yeah, i've learned that :-(