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Repairing mortar on patio (Read 5358 times)
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Repairing mortar on patio
Jun 27th, 2014, 11:25am
 
Hi

I've tried repairing some mortar using a measured amount of sand, cement and water. I had to do the job over a couple of days, but on each day the mortar dried to a different colour.

How do I get a consistently grey mix instead of the more yellow shade used on common yellow bricks?

Thank you.
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thescruff
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Re: Repairing mortar on patio
Reply #1 - Jun 27th, 2014, 1:23pm
 
To get the same colour you need to match the materials.

Same sand.
Same cement
Same quantities
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Re: Repairing mortar on patio
Reply #2 - Jun 27th, 2014, 5:34pm
 
Hmm. Did that. What ratio would you suggest?
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Re: Repairing mortar on patio
Reply #3 - Jun 27th, 2014, 6:57pm
 
What are you doing, perhaps a pic.

If your repairing an external render, you may want to look at "Monorex GM". http://www.parex.co.uk/Render_Systems/New_Build_-_Cement_Renders/Monorex_GM.aspx...

Comes in 30kg bags and a mutitude of colours.


Really easy to use.
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Re: Repairing mortar on patio
Reply #4 - Jun 27th, 2014, 7:56pm
 
Re-mortaring a patio
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Re: Repairing mortar on patio
Reply #5 - Jun 27th, 2014, 8:46pm
 
The deck or walls. Or do you means pointing the joints between slabs.

Can you post a pic
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Re: Repairing mortar on patio
Reply #6 - Jun 27th, 2014, 9:40pm
 
Joints between slabs.
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Re: Repairing mortar on patio
Reply #7 - Jun 27th, 2014, 11:46pm
 
I would mix it at 5 or 6 to 1, do enough for the job in one go, then brush it into the gaps still dry. You can work it in with a stick or whatever comes to hand. a length of 15mm bent copper tube is good.

if you want to point it in any specific way use a trowel dipped in water.

Keep any rain off and the atmosphere will harden it off over night.

Edit,

The slabs need to be dry when you do it otherwise you'll spread it all over the slab and cuss me forever.
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Re: Repairing mortar on patio
Reply #8 - Jun 29th, 2014, 11:06am
 
Yep.

Dry slabs.  Dry day.  Mix the sand and cement dry (no water).  Keep sand dry when stored.

Brush into joints and firm down with copper pipe as above.  The mix will absorb moisture over a couple days and set hard.
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