How to Do it With Marshalltown Tools

Masonry Tips and Techniques
Mortar

The strength of your masonry work depends largely on the mortar you use. This mortar formula has proven successful for most any outdoor masonry work where weathering is a constant consideration:

1 part Type IA Portland cement (1 cubic foot per 94 lb. bag)
1 part Type S hydrated lime (1 cubic foot per 40 lb. bag)
6 parts masonry sand (80 lb. damp loose sand per cubic foot)

Water may be added to this mortar up to 2 hours after mixing to re-temper the mortar. Avoid excessive water. A slightly stiffer mix is more desirable. Colored mortars may not be re-tempered.