I own a Victorian property which was built around 1900 I believe. The brickwork has a lime mortar. I am looking to repoint the chimney stack and rebed the pots but would like advice on the best mix to use.
I recently bricked up a back door and used
X1 hydraulic 3.5 lime
X2 sharp sand
X1 building sand
I didn't use any cement as from what I understand the brickwork needs to breathe and cement isn't used in the original mortor. I was going to use the same for the chimney stack and to re bed the pots but wondered as it's the stack and not the exterior wall as such whether I should use a cement mix for additional strength given the exposure of the chimney. Or perhaps just a sand and lime mix again but a stronger lime such as 5 rather than 3.5.
Any advice would be much appreciated?
I recently bricked up a back door and used
X1 hydraulic 3.5 lime
X2 sharp sand
X1 building sand
I didn't use any cement as from what I understand the brickwork needs to breathe and cement isn't used in the original mortor. I was going to use the same for the chimney stack and to re bed the pots but wondered as it's the stack and not the exterior wall as such whether I should use a cement mix for additional strength given the exposure of the chimney. Or perhaps just a sand and lime mix again but a stronger lime such as 5 rather than 3.5.
Any advice would be much appreciated?