File:Fse-spalling-v3.svg

Fse-spalling-v3.svg (SVG file, nominally 900 × 600 pixels, file size: 10 KB)

Summary

Indicative heat penetration depth L ≈ 2√(αt) for concrete (α = 9.88 × 10⁻⁷ m²/s). Based on Van Rossum (2027), §5.2 and §5.5.

Original vector illustration for Spalling, level 2 Intermediate.

Source basis: Van Rossum (2027), §5.2 (formula and 15-minute example) and §5.5 (diffusivity); Gross et al. (2005), p. 57
Alt text: Line chart of indicative heat penetration depth in concrete rising from 0 to about 170 mm over 120 minutes, with a marked point of 60 mm at 15 minutes.

New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:14, 2 November 2026		900 × 600 (10 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Short title	Indicative heat penetration depth L ≈ 2√(αt) for concrete (α = 9.88 × 10⁻⁷ m²/s). Based on Van Rossum (2027), §5.2 and §5.5.
Image title	Line chart of indicative heat penetration depth in concrete rising from 0 to about 170 mm over 120 minutes, with a marked point of 60 mm at 15 minutes. Source basis: Van Rossum (2027), §5.2 (formula and 15-minute example) and §5.5 (diffusivity); Gross et al. (2005), p. 57
Width	900
Height	600