Mid-IR standoff measurement of ageing-related spectroscopic changes in bitumen in the 6 µm (1700 cm<sup>-1</sup>) region. Part 2: Instrument development and results.

Sci Rep · 2025 · PMC12238624 · PMID 40628834

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a clear trendno p-value reported

Measurements of bitumen subjected to an artificial, accelerated ageing process showed a clear trend being observed between 1 and 6 week aged samples, with the signal-to-reference ratio decreasing as the bitumen aged.

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Mid-IR standoff measurement of ageing-related spectroscopic changes in bitumen in the 6 µm (1700 cm&lt;sup&gt;-1&lt;/sup&gt;) region. Part 2: Instrument development and results.

The sentences

Mid-IR standoff measurement of ageing-related spectroscopic changes in bitumen in the 6 µm (1700 cm<sup>-1</sup>) region. Part 2: Instrument development and results.