an engineering geological characterisation of tropical clays - GBV
an engineering geological characterisation of tropical clays - GBV
an engineering geological characterisation of tropical clays - GBV
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Results <strong>of</strong> swelling tests on black <strong>clays</strong><br />
Appendix C: Swelling tests<br />
Swelling S (mm) is expressed as percentage <strong>of</strong> initial specimen thickness Ho (mm).<br />
Table C1<br />
Table C2<br />
Swelling test: Sample No. SA2/70cm Swelling test: Sample No. SB1/70cm<br />
Initial sample size<br />
Initial sample size<br />
Diameter (mm) 71,4 Diameter (mm) 71,4<br />
Height Ho (mm) 11 Height Ho (mm) 11<br />
X-Sectional area (m²) 0,004 X-Sectional area (m²) 0,004<br />
Swelling pressure load (Kg) 33 Swelling pressure load (Kg) 15<br />
Swelling pressure SP (kPa) 82,46 Swelling pressure SP (kPa) 37,48<br />
Maximum swelling Smax (mm) 1,036 Maximum swelling Smax (mm) 0,425<br />
Load<br />
Swelling<br />
(kg) (kPa) (mm) % Load Swelling<br />
33 82,46 0,000 0,00 (kg) (kPa) (mm) %<br />
16,5 41,23 0,106 0,96 15 37,48 0,000 0,00<br />
8 19,99 0,253 2,30 7,5 18,74 0,054 0,49<br />
4 10,00 0,321 2,92 4 10,00 0,126 1,15<br />
2 5,00 0,539 4,90 2 5,00 0,197 1,79<br />
1 2,50 0,725 6,59 1 2,50 0,279 2,54<br />
0 0,00 1,036 9,42 0 0,00 0,425 3,86<br />
Table C3<br />
Table C4<br />
Swelling test: Sample No. SC25/50cm Swelling test: Sample No. SC29/50cm<br />
Initial sample size<br />
Initial sample size<br />
Diameter (mm) 71,4 Diameter (mm) 71,4<br />
Height Ho (mm) 11 Height Ho (mm) 11<br />
X-Sectional area (m²) 0,004 X-Sectional area (m²) 0,004<br />
Swelling pressure load (Kg) 14,5 Swelling pressure load (Kg) 18<br />
Swelling pressure SP (kPa) 36,23 Swelling pressure SP (kPa) 44,98<br />
Maximum swelling Smax (mm) 0,475 Maximum swelling Smax (mm) 0,493<br />
Load Swelling Load Swelling<br />
(kg) (kPa) (mm) % (kg) (kPa) (mm) %<br />
14,5 36,23 0 0,00 18 44,98 0 0,00<br />
7 17,49 0,066 0,60 9 22,49 0,061 0,55<br />
3,5 8,75 0,16 1,45 4,5 11,24 0,149 1,35<br />
2 5,00 0,26 2,36 2 5,00 0,266 2,42<br />
1 2,50 0,347 3,15 1 2,50 0,356 3,24<br />
0 0,00 0,475 4,32 0 0,00 0,493 4,48