masonry mix for pointing 100 year old stone

kt82 · 07-17-2011, 11:54 PM

I bought a 1909 house in central texas with a sandstone veneer . i have read I should use a soft mortar (lime and sand only ?) what would be the proper proportion for the mix?

stuart45 · 07-18-2011, 06:25 AM

Usually about 2 or 3 sharp sand to one of lime and a bit of bit dust. Or use 3/1 3.5 NHL hydraulic lime/sharp sand.

Tscarborough · 07-18-2011, 09:50 AM

In 1909 in Central Texas, the chances are good that it is a portland mortar, although still soft. You should determine that first.

stuart45 · 07-18-2011, 11:10 AM

You started using OPC in the mortar early on in Texas. Round here lime was still popular in the 30's.

Tscarborough · 07-18-2011, 04:06 PM

Alamo Cement was founded in 1880. There are 5 cement plants and 2 lime plants within a 100 mile radius of Austin.

kt82 · 07-19-2011, 07:27 AM

I wonder if the masons in 1909 worked if it was 100 degerees outside?? any of you around in 1909?

AGWhitehouse · 07-19-2011, 09:13 AM

Quote:

Originally Posted by kt82

I wonder if the masons in 1909 worked if it was 100 degerees outside?? any of you around in 1909?

I would bet money they did...without air conditioning your blood thins to accomodate the heat...Not saying they weren't sweating, but they were working.

Knucklez · 07-19-2011, 11:30 PM

this series is really good. also i think he says what the material used was for repointing.

http://www.youtube.com/watch?v=bK9hoTebGj0

Knucklez

kt82 · 07-20-2011, 07:37 AM

thanks to all

07-17-2011, 11:54 PM	#1
kt82 Member Join Date: Jan 2009 Location: roanoke, texas Posts: 161	masonry mix for pointing 100 year old stone I bought a 1909 house in central texas with a sandstone veneer . i have read I should use a soft mortar (lime and sand only ?) what would be the proper proportion for the mix?

07-18-2011, 06:25 AM	#2
stuart45 Member Join Date: Jun 2009 Location: Somerset, England Posts: 637	masonry mix for pointing 100 year old stone Usually about 2 or 3 sharp sand to one of lime and a bit of bit dust. Or use 3/1 3.5 NHL hydraulic lime/sharp sand.

07-18-2011, 09:50 AM	#3
Tscarborough Member Join Date: Mar 2006 Location: Austin, TX Posts: 1,038	masonry mix for pointing 100 year old stone In 1909 in Central Texas, the chances are good that it is a portland mortar, although still soft. You should determine that first. __________________ Advice is free, Lessons begin at 75 bucks an hour.

07-18-2011, 11:10 AM	#4
stuart45 Member Join Date: Jun 2009 Location: Somerset, England Posts: 637	masonry mix for pointing 100 year old stone You started using OPC in the mortar early on in Texas. Round here lime was still popular in the 30's.

07-18-2011, 04:06 PM	#5
Tscarborough Member Join Date: Mar 2006 Location: Austin, TX Posts: 1,038	masonry mix for pointing 100 year old stone Alamo Cement was founded in 1880. There are 5 cement plants and 2 lime plants within a 100 mile radius of Austin. __________________ Advice is free, Lessons begin at 75 bucks an hour.

masonry mix for pointing 100 year old stone