How to mix mortar using NHL- Natural Hydraulic Lime

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How to mix mortar using NHL- Natural Hydraulic Lime

Рет қаралды 16,709

3 жыл бұрын

How to mix mortar using 2 different types of sand and Tigre NHL 5 (Natural Hydraulic Lime). Use a bucket to measure by volume, not by weight!
We do this mix in a 1:2 ratio- 1 part NHL 5 and 2 parts sand by volume.
Dry mix everything first. Then slowly add clean, potable water, and mix thoroughly. After it's mixed, transfer to another bucket, and mix again!
*NHL is highly caustic and precautions should always be taken, like wearing gloves, proper clothing and a mask!

Пікірлер: 10

@robertcoleman7047 2 жыл бұрын

Thank you. Exactly what I needed to know! I'm off to mix some mortar.

@LyonsArcade 3 жыл бұрын

That worked out amazing, looks like a million bucks once you were finished. Thanks for the video!

@PreservationWorks 3 жыл бұрын

Glad you like it, and thanks for watching!

@DRJMF1 2 жыл бұрын

Great organised mixing set up for posting stone walls. What would you recommend to to mix Hot lime mortar for plastering walls (Quicklime slaked with a sand) ? Do I slake before mixing with a paddle mixer, or use a Baron mixer or Roller pan mixer ?

@mw1460 2 жыл бұрын

Hi, in terms of vapor permeability ( damp regulation on old brick and mortar walls) is there a difference between NHL5 and NHL 2? I want to plaster a cellar wall.

@maartenlaarhoven160 2 жыл бұрын

Everybody and their mother seem to add Portland cement. I looked up NHL5 and sand, and found you. I'd love to build a cob house on a stone foundation, cement free. What are your thoughts on stone foundations without cement in the mortar?

@Montana_Ranch_Rescue 2 жыл бұрын

Go for it! We are building a stone foundation for our log house now with NHL 5 . Cement has its place, but often it is a terrible fit with natural stone/log. The British seem to have understood this for years and years. They don’t allow it’s use on listed historic buildings. America is yet to catch on, I guess?

@lordracula2461 Жыл бұрын

@@Montana_Ranch_Rescue It's not as common as you'd think. Most of our old buildings aren't listed and still get re-pointed with cement

@elleondejuda4681 Жыл бұрын

Hi . What color did you get from this mortar when dry ? Do you need to treat the mortar after apply on wall to prevent cracking etc ? Can you help with this on a video etc Thanks

@PreservationWorks Жыл бұрын

The color was a lavender hued brown which matched the stone. To prevent cracking and failure you need to keep NHL mortar damp for 72 hours minimally after installation.