Dedicated to the stonework at the Cathedral St. John the Divine

The Mortar Formula

Post author By Roger Murphy
Post date October 23, 2020
1 Comment on The Mortar Formula

Wide angle view of the tower as Stephen Boyle and setter Edgar Reyes prepare to place a cornice stone on the west wall on July 26, 1988. – Photo by Robert F. Rodriguez

Master Mason Steve Boyle has shared with us the mortar formula that he used for setting, pointing and grouting. It was 6 parts sand, 1 part hydrated lime and I part white cement. It is the Indiana Limestone Institute’s standard mix.

Mortar Indiana Limestone Institute — Mortar Information from the Indiana Limestone Institute

Thanks to Steve Boyle for this information
Indiana Limestone Institute Handbook

One reply on “The Mortar Formula”

Thanks Roger!
Great to have a “recipe”.
Thanks too for your efforts, keep the posts coming, always interesting.

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