With reference to the self-healing properties of Roman concrete, consider the following statements: 1. The process involves the formation of calcite cement. 2. It acts as a sink for carbon dioxide. Which of the statements given above is/are correct?

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12 July 2026

Self-healing properties of Roman concrete

The topic provides a relevant scientific case study on sustainable material technology that can be used as an example in answers regarding infrastructure development or environmental sustainability.

Notes

Roman concrete exhibits unique self-healing properties that allow it to gain strength over time.
Research conducted on samples from an ancient latrine at Hadrian’s Villa, Italy, identified the mechanism behind this durability.
The process involves lime within the concrete mixture reacting with moisture and carbon dioxide from the atmosphere.
This chemical reaction produces calcite cement, which fills cracks and pores, reinforcing the material's structural integrity.
Unlike modern concrete, which degrades over decades, Roman concrete acts as a long-term carbon dioxide sink by converting the gas into solid rock.

Questions

The study of ancient construction materials like Roman concrete offers significant insights for modern sustainable infrastructure. Discuss the chemical mechanisms behind the self-healing properties of Roman concrete and evaluate its potential implications for reducing the carbon footprint of the construction industry. 150 words

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Prelims

With reference to the self-healing properties of Roman concrete, consider the following statements: 1. The process involves the formation of calcite cement. 2. It acts as a sink for carbon dioxide. Which of the statements given above is/are correct?

Syllabus

Topics

Science & Technology

Sources

Roman concrete lasts so long thanks to self-healing

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