Table 3.7.1.3


 

Different treatment applied to samples of weaterlogged wood

 

1

2

3

4

5

6

7

 

I-NTTH

I-TTH

I-NTTH

NI-NTTH

I-TTH

I-NTTH

I-TTH

Obtained results

SAC1

SAC2

SVC1

SVC2

SVC3

LYOPH

DDS

Total intrusion volume (ml/g)

0,1557

0,8175

1,1003

1,1613

0,8905

0,8368

0,7638

Total pores surface (m2/g)

23,508

8,778

5,723

10,3

5,127

3,919

4,852

Medium diameter of the pore volume (mm)                  

7,7889

0,7466

1,0796

0,9044

0,9824

2,4461

1,0119

Medium diameter of the pore surface (mm)

0,0056

0,0433

0,6821

0,2308

0,6512

0,0141

0,7224

Medium diameter of the pores (mm)

0,0265

0,3726

0,7691

0,451

0,6948

0,854

0,6297

Apparent volumic mass (g/ml)

1,1976

0,5676

0,4916

0,5

0,5535

0,4434

0,5729

Structural apparent volumic mass (g/ml)

1,472

1,0589

1,0706

1,0476

1,0914

0,705

1,0185

Volume fraction occupied by sample tray (%)

13

98

95

92

97

99

97

Porosity (%)

18,64

46,40

54,09

58,00

37,10

49,29

43,76

Observations (before analysis)

Deformed

L-Cracked

A- Cracked

A- Cracked

M-Preserved

M- Preserved

M- Preserved



Table 1: Results of the porosity analysis performed on waterlogged wood samples (wood called ECBL) impregnated with starch and different drying methods.

1- I-NTTH: Impregnated sample – not submitted to thermal treatment– dried by warm air at 30°C
2- I-TTH: Impregnated sample – submitted to thermal treatment – dried by warm air at 30°C
3- I-NTTH: Impregnated sample – not submitted to thermal treatment – dried by continuous vacuum at 30°C
4- NI-NTTH: Not impregnated sample – not submitted to thermal treatment – dried by continuous vacuum at 30°C
5- I-TTH: Impregnated sample – submitted to thermal treatment – dried by continuous vacuum at 30°C
6- I-NTTH: Impregnated sample – not submitted to thermal treatment – dried by freeze drying
7- I-TTH: Impregnated sample – submitted to thermal treatment – dried by DDS – 0.50 bar.

Used codes in the observation: L-cracked: slightly cracked M-Preserved: better preserved