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Shrinkage limit test results and interpretation for clay soils

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Presentation on theme: "Shrinkage limit test results and interpretation for clay soils"— Presentation transcript:

1 Shrinkage limit test results and interpretation for clay soils
by P. R. N. Hobbs, L. D. Jones, M. P. Kirkham, D. A. Gunn, and D. C. Entwisle Quarterly Journal of Engineering Geology and Hydrogeology Volume ():qjegh November 5, 2018 © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

2 Schematic plot of water content v
Schematic plot of water content v. volume showing graphical construction to determine shrinkage limit (dashed lines), and other Atterberg limits. wS, shrinkage limit; wP, plastic limit; wL, liquid limit; IS, shrinkage index; IP, plasticity index. Schematic plot of water content v. volume showing graphical construction to determine shrinkage limit (dashed lines), and other Atterberg limits. wS, shrinkage limit; wP, plastic limit; wL, liquid limit; IS, shrinkage index; IP, plasticity index. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

3 Water content v. volume per 100 g dry soil, U, for selected samples (SHRINKiT test) of UK soils by formation or soil type. Water content v. volume per 100 g dry soil, U, for selected samples (SHRINKiT test) of UK soils by formation or soil type. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

4 Water content v. volume per 100 g dry soil, U, for selected samples (SHRINKiT test) of non-UK soils by formation or soil type. Water content v. volume per 100 g dry soil, U, for selected samples (SHRINKiT test) of non-UK soils by formation or soil type. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

5 Envelopes of water content v
Envelopes of water content v. volume per 100 g dry soil, U, for all data (SHRINKiT test). Envelopes of water content v. volume per 100 g dry soil, U, for all data (SHRINKiT test). P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

6 Shrinkability index v. liquidity index for all data (by formation or soil type); sample GAULT5 omitted for clarity; Und, undisturbed; Rem, remoulded. Shrinkability index v. liquidity index for all data (by formation or soil type); sample GAULT5 omitted for clarity; Und, undisturbed; Rem, remoulded. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

7 Shrinkability index v. liquidity index for all data (by sample state).
P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

8 Water content v. bulk density, selected data, by formation or soil type (undisturbed samples only).
P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

9 Water content v. bulk density, selected data, by formation or soil type (remoulded samples only).
P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

10 Water content v. bulk density, tropical red clay soils (matched undisturbed and remoulded samples; refer to Table 2); Und, undisturbed; Rem, remoulded. Water content v. bulk density, tropical red clay soils (matched undisturbed and remoulded samples; refer to Table 2); Und, undisturbed; Rem, remoulded. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

11 Water content v. bulk density, selected UK and Cyprus data, by formation (matched undisturbed and remoulded samples; refer to Table 2); Und, undisturbed; Rem, remoulded. Water content v. bulk density, selected UK and Cyprus data, by formation (matched undisturbed and remoulded samples; refer to Table 2); Und, undisturbed; Rem, remoulded. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

12 Shrinkage limit v. water content at peak bulk density by formation or soil type and sample state (line shows 1:1 relationship); Und, undisturbed; Rem, remoulded. Shrinkage limit v. water content at peak bulk density by formation or soil type and sample state (line shows 1:1 relationship); Und, undisturbed; Rem, remoulded. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

13 Three-axis plot of water content v. unit volume v
Three-axis plot of water content v. unit volume v. suction for sample London15. Three-axis plot of water content v. unit volume v. suction for sample London15. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

14 Three-axis plot of water content v. bulk density v
Three-axis plot of water content v. bulk density v. suction for sample London15. Three-axis plot of water content v. bulk density v. suction for sample London15. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved

15 Shrinkage limit (SHRINKiT: graphical construction), v
Shrinkage limit (SHRINKiT: graphical construction), v. shrinkage limit (SHRINKiT: ASTM calculation) by formation or soil type and state (dashed line shows 1:1 relationship); Und, undisturbed; Rem, remoulded. Shrinkage limit (SHRINKiT: graphical construction), v. shrinkage limit (SHRINKiT: ASTM calculation) by formation or soil type and state (dashed line shows 1:1 relationship); Und, undisturbed; Rem, remoulded. P. R. N. Hobbs et al. Quarterly Journal of Engineering Geology and Hydrogeology 2018;qjegh © 2018 UKRI. The British Geological Survey. Published by The Geological Society of London. All rights reserved


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