Quikrete Mortar Type S issue


  #1  
Old 09-23-20, 11:41 AM
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Quikrete Mortar Type S issue

Hi All, I'm doing some conc block work for the first time and had ordered up some Quikrete Mortar Type S to lay 2 rows of conc block. When applying the mix, it's not sticking to the block. I have read that adding some portland will help with that, but not sure how much portland to add. Any recommendations are greatly appreciated. Thank you!
 

Last edited by YouGottaBeKid; 09-23-20 at 11:58 AM.
  #2  
Old 09-23-20, 01:16 PM
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Welcome to the forums!

You are using the premixed mortar and not the separate mortar you have to mix with sand correct?
The premixed S should work fine. How wet/dry are you mixing it?
 
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Old 09-23-20, 01:24 PM
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Hi Marksr, thanks for the reply. Correct, it's the bagged premix from Homedepot. I am mixing half a bag at a time which turns out to 10 cups of water (2.5 qt's). The consistency seemed good, but it just wasn't sticking to the block. I let 2 blocks dry overnight and it looks like it bonded ok, but not sure if I should proceed or adjust the mix.
 
  #4  
Old 09-23-20, 01:33 PM
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It's largely about your technique. Getting mortar to stick is a common problem when you first start. You have to apply some pressure and force the mortar into intimate contact with the block and get it down into the nooks and crannies if buttering a block or brick. It's also why you apply too much mortar and then tap the block into place with the heal of the trowel instead of just pushing the block down. The vibration helps work the mortar and block together.
 
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Old 09-23-20, 02:09 PM
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Hi Pilot. Very interesting information, really good to know! Thank you for your response!
 
  #6  
Old 09-24-20, 11:32 AM
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The blocks must be dry................................
 
 

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