Archaeology · Architecture · Heritage · Science
Cement from the 1960s damages Stonehenge stones and was replaced with lime mortar in 2021
The cement grout used to fill cracks in the horizontal stones of Stonehenge in the 1960s may lead to its destruction. Sixty years after the restoration, it has emerged that the airtight cement causes moisture to accumulate and the blocks to crumble as it freezes and thaws. In September 2021