Recent research has shown that lime clasts allowed Roman concrete to self-repair cracks. More in the article below.
More:
https://news.mit.edu/2023/roman-conc...ime-casts-0106
Previously:
Firefighter training stairs - photo
High-rise spiral emergency exit staircase - photo
Wall folding fire exit stairs - GIF
Wood trunk staircase - photo
Concealed basement stairs - GIF
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Yes, bring back lime mortar. But how would you find labourers to mix quicklime?
Agreed Philip, perhaps the answer is pay them enough?. I worked for an old building firm in Budleigh Salterton and had to mix lump quicklime in troughs for lime mortar, also used for lime wash for cob buildings. Not a pleasant job but we just got on with it, no mobile phones to play with then.Originally Posted by Philip Davies
Philip Davies (Apr 7, 2023)
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