www.geolabs.co.uk
GEOLABS Limited Tel:
+44 (0)1923 892 190 . . Fax: +44 (0)1923 892 191
Total Stress Tests -
Direct Shear Strength using 60mm Small
Shearbox
- Peak Shear Strength(s)
- Residual Shear Strength(s) if required
- Displacement(s) at peak
- Test Type
(peak only, peak & residual, single specimen, set of 3 etc.) - Remoulding conditions
(if applicable) - Normal Stress(es)
(eg. 50,100,200 kPa)
- Slope stability
- Enough intact material to trim down to a 60mm square by 25mm high block for each specimen required.
(usually a 50mm length from a U100 is sufficient for one specimen)
Remoulded:
- Approximately 200g of <2mm material per specimen.
(BS1377 : Part 7 : Clause 4 : 1990)
Note:
A 'rapid' peak-only test on free-draining material would be unlikely to require any extra days charged in addition to this 1 day rate. However, peak-and-residual tests, or tests on cohesive materials, would probably require a total of 1 day per consolidation stage and one day per shearing stage for each specimen. Highly impermeable clays could take longer.
(up to 1 day duration)
(BS1377 : Part 7 : Clause 4 : 1990)
Note:
This rate is only included to aid those who require 4 day rates for filling in tenders and quotations. In all cases we would charge the 1 day rate plus extra days. This comes to the same as the 4 day rate for a 4 day test, or is cheaper than the 4 day rate for quicker tests.
(up to 4 days duration)
Note:
The sample preparation charge covers screening, mixing to a specified moisture content and remoulding.