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Which Roman construction technique allowed the Pantheon's... | QuestionStock

Representative image for question: Which Roman construction technique allowed the Pantheon's large unreinforced concrete dome to be built?

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Architecture

Which Roman construction technique allowed the Pantheon's large unreinforced concrete dome to be built?

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Which Roman construction technique allowed the Pantheon's large unreinforced concrete dome to be built?

Options:

Use of coffered formwork and graded lightweight aggregates in concrete
Post-and-lintel timber framing with iron ties
Steel-reinforced concrete with trussed ribs
Masonry corbelling with stepped stone rings

Correct answer: Use of coffered formwork and graded lightweight aggregates in concrete

Explanation: Roman builders reduced dome weight by using coffered formwork and progressively lighter aggregates in their concrete mix, enabling the Pantheon's unreinforced dome completed around 125 AD.

Created 2026-03-10T17:19:14.998Z. Updated 2026-03-10T17:19:14.998Z.