Faustus Posted September 20, 2007 Report Share Posted September 20, 2007 This last Saturday I spent the day filling narrow spaces between many polygonal patio blocks with mortarium. To do this I used a Roman grout bag or (Roman calk gun). Since the Romans invented concrete, I have to credit them with inventing this tool To visualize, think of a pastry chef Quote Link to comment Share on other sites More sharing options...
Gaius Octavius Posted September 20, 2007 Report Share Posted September 20, 2007 "Wouldn Quote Link to comment Share on other sites More sharing options...
Faustus Posted September 20, 2007 Author Report Share Posted September 20, 2007 "Wouldn Quote Link to comment Share on other sites More sharing options...
Gaius Octavius Posted September 20, 2007 Report Share Posted September 20, 2007 How about cloth? Quote Link to comment Share on other sites More sharing options...
Pertinax Posted September 20, 2007 Report Share Posted September 20, 2007 "Wouldn Quote Link to comment Share on other sites More sharing options...
Faustus Posted September 20, 2007 Author Report Share Posted September 20, 2007 How about cloth? Cloth is good, something the grade of sailcloth. A grout bag today is light canvas, with a slippery coating on the inside to reduce friction and to make the mortar fall through without sticking. Olive oil? Pertinax mentioned olive oil as a stress reducing agent. Today, In forming concrete, the forms are coated with oil to prevent the concrete from bonding to the forms. This also extends the life of the forming material. The Romans would have had an abundance of olive oil, and olive oil would have added that slippery coating that todays bags have through more exotic modern coatings. Quote Link to comment Share on other sites More sharing options...
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