Mortar Mix For Pointing Stone Walls

Type o mortar mix.

Mortar mix for pointing stone walls.

At the end of the day scratch off the joints flush and brush with a soft brush. A 6 or 8 to 1 with an added 1 part lime is perfect for stone. Spot on darren 3 5 should be fine for all but retaining walls but again it depends on the stone being used and the exposure to elements. It is used primarily interior above grade non load bearing walls.

Lime mortar guide 2020. For harder stone i tend to use nhl 5 as it weathers better. Lime mortar pointing lime mortar repointing. Mortar basically comprises an aggregate sand.

Are you are looking for a technical construction specialist in traditional lime mortars. Soft sand or sharp sand etc with aggregate mix created now add cement and mix folding over and over until uniform colour. Old wall in need of pointing. Whether you re looking to build a wall for a raised garden or a small retaining wall a stacked stone wall can offer elegance without a lot of expense.

They can be stacked without mortar but this requires stacking them just so. The lime mortar should always be softer than the stone and generally i use a 4 1 mix. Pack more mortar around the stone. The process of making a mortar mix is in essence fairly simple the steps are as follows.

In your case i would go for 6 sand 1 cement 1 lime. A stone wall can give your garden timeless appeal. It is more expensive than using portland cement but if you have taken the time to use lime with the house it would be a shame not to have a matching wall. After filling all the joints let the mortar set up for about an hour.

Type o can be used as an alternative to type n for some interior applications but its exterior use is limited due to its low structural capacity. Mixing the aggregate and making a mortar mix quick guide. Historic mortar should be left undisturbed as it can be an important part of the character and significance of a building. These joints are known as pointing.

Adding mortar makes your wall stable and takes the worry away. Stone walls also look better with age. Type o mortar mix has relatively low compressive strength at only about 350 psi. You own a pre 1919 building constructed of stone are looking to renovate stonework on a building of this era or looking to build a new stone building.

Then lightly mist the mortar with water and use a soft bristle brush to smooth the mortar flush against each stone. Masonry walls are built of a series of individual units generally brick stone or flint with mortar acting as the glue that holds them together. Considered when repointing brick or stone walls of older buildings. First mix together aggregates e g.

Make your mix stiffer than brickwork mortar and keep your joints as small as possible fill all joints as you go. This guidance aimed at homeowners and non specialist building professionals provides a brief technical guide to the key issues and stages that need to be. Suggest raking and pointing 3 4 with a stronger mix include cement in the pointing if extreme exposure and be prepared to regularly re point.