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Repointing Engineering Bricks - Mortar?

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Maria

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Jul 25, 2010, 12:02:48 PM7/25/10
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Hi
I need to repoint the blue bricks at the base of my house. Can I use
ordinary mortar for this? I am not concerned with preserving the
heritage or anything like that (I have found some '5 lime' mortar for
that purpose but it's for heritage buildings and costs more than twice
as much as ordinary mortar!).

Thank you

Maria

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Jul 25, 2010, 12:05:29 PM7/25/10
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Ps - sorry should have said - house is Victorian with suspended wooden
floors, and there is an underfloor vent in the layers of engineering bricks.

mark

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Jul 25, 2010, 1:09:45 PM7/25/10
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"Maria" <do...@heel.org> wrote in message
news:3ZqdnXY6ccG1_dHR...@bt.com...


By mortar do you mean cement?
My manhole chambers are made with eng.bricks and ordinary cement, the grey
stuff or OPC.
Better to mix your own mortar I would say.

4:1 sand/cement plus a splodge of plasticiser eg., Feb-mix, or washing up
liquid if it's only a small amount of mortar you are mixing.

mark


NT

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Jul 25, 2010, 2:52:53 PM7/25/10
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1:1:6 would be fine


NT

Phil L

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Jul 25, 2010, 3:14:44 PM7/25/10
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sand and cement is fine, about 4:1, unless it's below the dpc, in which case
you're better making it 3:1, and a minimum of 12mm deep

--
Phil L
RSRL Tipster Of The Year 2008


The Natural Philosopher

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Jul 25, 2010, 3:39:33 PM7/25/10
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Sod heritage. Engineering bricks are used because they resist getting
damp and spalling in frost.

So use good strong 2:1 mortar here!

If you want to match rubbish lime mortar color wise, use white cement.

The Natural Philosopher

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Jul 25, 2010, 4:04:46 PM7/25/10
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2:1 with waterproofing additive below DPC. Let's not sod about here.;-)

Carl

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Jul 1, 2021, 2:15:06 PM7/1/21
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Nothing wrong with line mortar, ask the Egyptians and Roman's, I'm pointing my 1908 Victorian house at the mo, nothing wrong with it if you do it properly

--
For full context, visit https://www.homeownershub.com/uk-diy/repointing-engineering-bricks-mortar-645941-.htm

Fredxx

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Jul 1, 2021, 2:18:29 PM7/1/21
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On 01/07/2021 19:15, Carl wrote:
> Nothing wrong with line mortar, ask the Egyptians and Roman's, I'm
> pointing my 1908 Victorian house at the mo, nothing wrong with it if you
> do it properly
>

Before replying to a 10 year old post through a broken website read this
first.

http://wiki.diyfaq.org.uk/index.php/Home_owners_hub

williamwright

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Jul 1, 2021, 4:49:19 PM7/1/21
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On 01/07/2021 19:15, Carl wrote:
> I'm pointing my 1908 Victorian house at the mo,

She must have been getting on a bit by them.

Bill

Brian Gaff (Sofa)

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Jul 2, 2021, 2:35:19 AM7/2/21
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Also why is it called pointing? Surely all you are doing is making the
joints between bricks look nicer and hopefully stopping it eroding more.
Brian

--

This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...
bri...@blueyonder.co.uk
Blind user, so no pictures please
Note this Signature is meaningless.!
"williamwright" <wrights...@f2s.com> wrote in message
news:ik6o2b...@mid.individual.net...

Paul

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Jul 2, 2021, 4:29:34 AM7/2/21
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Brian Gaff (Sofa) wrote:
> Also why is it called pointing? Surely all you are doing is making the
> joints between bricks look nicer and hopefully stopping it eroding more.
> Brian
>

https://www.heritage-house.org/stuff-about-old-buildings/raking-and-re-pointing/what-is-pointing-and-what-does-it-do.html

https://www.thespruce.com/repointing-brick-mortar-1821984

"Repointing the brick mortar means to chip out
the old mortar and replace it with new mortar.

The reason the process is called pointing - or repointing,
in this case is because you use a pointed trowel.
"

The trowel is diamond shaped and has a handle welded to one end
of the diamond.

The pointing trowel is about half the length of the brick trowel.
And the pointing trowel, you can bend the diamond portion of it
if you're not careful. Whereas a brick trowel, the metal is a
lot thicker.

Paul
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