Skip to main content

Table 3 The compressive strength of samples

From: The method to soften the concretions of ceramics in the “Nanhai I” Shipwreck of China Southern Song Dynasty (1127–1279AD)

Pottery samples Porcelain samples
Before treatment After treatment Before treatment After treatment
Compressive strength (MPa) Area of section (mm2) Compressive strength (MPa) Area of section (mm2) Compressive strength (MPa) Area of section (mm2) Compressive strength (MPa) Area of section (mm2)
13.20 133.67 13.20 127.74 137.20 176.64 112.50 161.17
17.00 115.09 14.40 127.87 146.90 168.92 133.50 179.98
12.60 149.26 12.30 122.77 105.80 174.85 106.00 177.13
17.10 157.89 18.30 135.56 143.20 179.66 98.90 199.61
13.30 124.28 16.10 110.50 92.20 171.86 100.90 177.77
12.50 141.73 12.50 118.52 94.80 175.24 141.80 171.77
12.70 140.70 19.10 117.68 102.80 179.17 138.00 170.72
18.70 111.53 13.80 125.10 117.60 164.14 121.40 158.41
15.50 123.71 16.90 129.94