Lime mortar repointing

There is a mortar mix of 6-1-1 which is 6 parts sand, one part lime and one part cement, commonly used between 1930s-1980s If your building is pre 1930s it’s very likely to be a traditional hot mix/ hydraulic lime mortar needed. No Cement or PVA necessary or recommended for this mix Hope this helps

Hello. No need for pva. Or cement. I mixed it. 1 bucket of lime 3 buckets of sand. That was repointing an old garden wall. The sand I used was sharp sand. And white cement to blend in with the stone.

No, a proper lime mortar mix for repointing should not include any cement or PVA. Adding these materials compromises the essential properties of the lime mortar, potentially causing damage to the masonry.

No cement or pva should be used on solid wall masonry to ensure flexibility and breathability. Using cement will trap moisture if any gets in through cracks. Depending on where you are using the mortar will determine what mix to use. For general pointing you should be using a quicklime hot mixed mortar, mixed at 3/4 parts Q. L to 1 part aggregate. For more exposed areas like wall tops or parts of masonry that's in areas exposed to the element I would guage In a pozzolan or NHL. There's no one mix fits all and you should tailor your mixes to suit the appearance of the original mortar but also bearing in mind that it needs to be suitable for the location if it's in exposed areas.

Shouldn't be any sort of cement going into a lime Mortar mix. Sand and lime is all you need