The video presents a disputed hypothesis that the polygonal blocks at Sacsayhuamán were cast from geopolymer materials rather than carved from solid stone. It argues that blocks were shaped in a semi-wet plastic state, assembled beside earlier blocks and deformed by pressure to create tight-fitting joints. It interprets the curved interfaces and scoop marks as evidence that the material was soft or semi-plastic when worked, and says similar scoop marks occur at Aswan Quarry, Stonehenge, Domus de Janas and other megalithic sites. Conventional archaeological explanations instead attribute the masonry to traditional quarrying, stone dressing and construction techniques. The geopolymer account remains a minority interpretation.
Video advances disputed geopolymer-casting theory for Sacsayhuamán blocks
Lost Civilization
Key facts
- The video advances a disputed hypothesis that the polygonal blocks at Sacsayhuamán were cast from geopolymer materials rather than carved from solid stone.
- The video describes geopolymers as artificial stone made by mixing silica- and alumina-rich mineral powders with alkaline solutions, allowing them to harden at low temperatures.
- It proposes that the blocks were shaped in a semi-wet plastic state and placed beside previously formed blocks.
- It argues that deformation under pressure, rather than precise carving, produced the blocks' seamless joints.
- It interprets the curved interfaces between blocks as evidence of compression in a softer material.
- It interprets scoop marks on the stone surfaces as evidence of material removal while the material was still semi-plastic.
- The video says comparable scoop marks occur at Aswan Quarry in Egypt, Stonehenge in England, Domus de Janas in Sardinia and other megalithic sites.
Sources
geopolymer.org
Linked in video description
natrontheory.com
Linked in video description
Sacsayhuamánen.wikipedia.org
The estimated volume of stone is over 6,000 cubic meters. Estimates for the weight of the largest Limestone block vary from 128 tonnes to almost 200 tonnes.
21 days GEOPOLYMER EXPERIMENTgeopolymer.org
THEORY #1 (Sacsayhuaman masonry). The unique and giant polygonal stones were prepared on the ground and then placed in the same order vertically using “block.
A Global Synthesis of Geopolymer Construction in Ancient ...academia.edu
This paper synthesizes evidence supporting the use of **geopolymer concrete**—a poured, low-temperature binder formed from crushed stone aggregates (e.g., ...
Masonry Techniques of the Inca's Master Buildersearthasweknowit.com
A more extreme version of this stone softening hypothesis claims that these stones were somehow liquefied into a geopolymer, something more akin to concrete, ...
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