Potential breakthrough in Roman Concrete

Storing attached PDF here seems appropriate.
Contains table of plants known to have been used in the construction or modification of masonry.
All credit belongs to the author Professor Joseph Davidovits.

Chris Kay wrote: A form of Caroxylic acid (Oxalic acid) can be found in Rhubarb

... and Japanese Knotweed

Yes, I have heard of the Parthenon.

It's a GREEK Temple, built in Athens, Greece, around the 5th Century BCE using marble, granite and other stone. It was a key fixture in Athenian culture in the Greek Empire.

It predated Roman Concrete by about 300 years.

I meant the Pantheon. Theyre calling it Roman concrete now.

Phil Stevens wrote:

That's fine. We're permies. We're not interested in mass scales. Slow and small steps. Appropriate technology.

The big wins for me are the reduction in embodied energy and carbon footprint plus the self-healing property, which is already a feature of lime mortar but apparently turbocharged by the presence of clasts. So if a handful of enthusiasts start messing around with it, and come up with interesting and useful applications, their experience can be replicated and spread. Sort of like RMH development...plant the seed, give it the right conditions, and see what grows.

we need things to last longer here without problems, like they do in Europe. everything here falls apart so quickly now.

Our current day material scientists have plenty of motivation given the limited lifespan of roads and bridges and skyscrapers collapsing and an awful lot of progress has been made in the form of  ADMIXTURES  added to teh concrete mix that increase the strength and make the concrete water proof-impermeable  so that the moisture and other contamnates cannot reach the rebar.  Further different forms of rebar and reinforcement are being used like boron, fiberglass mesh,  galvanized rebar, stainless steel rebar, and fiberglass rebar.    If these additive components prevent the concrete from deteriorating over time then the lifespans expand dramatically.   As a layman, I have already added the acrylic liquid that tile installers use to make the tile installations in showers waterproof and longer lasting.....   I add it to the mortar used in brick sidewalks and steps and in the mass pours of sidewalks and driveways and  concrete floors of garages and basements.