Could Roman concrete have clues on how Pyramid of Giza was built – and saved?

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1. Fri, 4 September 2026

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   • South China Morning Post06:53first to report
     Could Roman concrete have clues on how Pyramid of Giza was built – and saved?

     The enduring mystery of how the ancient Egyptians built the Great Pyramid of Giza – with its 2.3 million multi-tonne stone blocks – has puzzled researchers for centuries. Mainstream archaeology holds that the pyramids were constructed from natural limestone or granite blocks precisely cut and hauled into place. An alternative scientific theory suggests the blocks might have been cast from an early form of concrete, but that idea has long faced a critical question: how could such an artificial...