Table 3 Performance characteristics of hydraulic lime

From: Traditional lime craftsmanship in China’s built heritage: craft knowledge, transmission, and intangible cultural heritage conservation

 

Types of natural hydraulic lime

NHL-2 weak hydraulic

3.5 medium hydraulic

5 strong hydraulic

7-day intensity (Ma)

–

≥1.5

≥2

28-day intensity (Ma)

2–7

3.5–10

5–15

CIa

0.3–0.5

0.5–0.7

0.7–1.1

  1. a\({\rm{CI}}=\left[{\frac{(2.8\,*\,{{\mathrm{S}}{\mathrm{iO}}}_{2}\%)+(1.1\,*\,{\mathrm{A}}{{\mathrm{l}}_{2}}{{\mathrm{O}}_{3}}\%)(0.7\,*\,{\mathrm{F}}{\mathrm{e}}_{2}{{\mathrm{O}}_{3}}\%)}{\mathrm{C}{\mathrm{a}}{\mathrm{O}}\%\,+\,(1.4\,*\,\mathrm{M}{\mathrm{g}}{\mathrm{O}}\%)}}\right]\).
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