Please note
The test rates listed in this website are only applicable to clients who comply with the requirements in our Testing Notes and Terms and Conditions and pay all submitted invoices within 30 days from the date of invoice
Direct Shear (60 mm Small Shearbox)
Direct Shear Strength using 60mm Small Shearbox
| Description | Price |
| Shear strength by direct shear (up to 1 day) (BS EN ISO 17892) Note: A test with a set of 3 pressures requires 3 specimens, so allow for 3 of this item in that case. |
£ 60.00 per specimen (up to 1 day duration) |
| Shear strength by direct shear (up to 4 days) (BS EN ISO 17892) 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. |
£ 142.50 per specimen (up to 4 days duration) |
| Extra over days in excess of initial 4 days | + £ 27.50 per day per specimen |
| Extra over for sample preparation Note: The sample preparation charge covers screening, mixing to a specified moisture content and remoulding. |
+ £ 11.00 per specimen |
Results given
- Peak Shear Strength(s)
- Residual Shear Strength(s) if required
- Displacement(s) at peak
You provide
- Test Type (peak only, peak & residual, single specimen, set of 3 etc.).
- Remoulding conditions (if applicable).
- Normal Stress(es) (eg. 50,100,200 kPa).
Typical use(s)
Slope stability
Material required
Undisturbed:
- Enough intact material to trim down to a 60 mm square by 25 mm high block for each specimen required (usually a 50 mm length from a U100 is sufficient for one specimen).
Remoulded:
- Approximately 200 g of < 2 mm material per specimen.
Shear Box
Direct Shear (300 mm Large Shearbox)
Direct Shear Strength using 300mm Large Shearbox
| Description | Price |
| Immediate shear strength by rapid direct shear (BS EN ISO 17892 and (Specification for Highway Works Vol.1 Clause 636 Part 2) Note: only suitable for free-draining, rapidly-consolidating material. If the material is not free-draining and consequently consolidates slowly, then the test is carried out as a drained test and is likely to incur additional extra over day charges. |
£ 130.00 per specimen |
| Peak (and Residual if required), shear strength on consolidated drained specimen (BS EN ISO 17892) and (Specification for Highway Works Vol.1 Clause 636 Part 3) |
£ 130.00 per specimen (up to 1 day duration) |
| Extra over days in excess of initial 1 day | + £ 70.00 per day per specimen |
| Remoulding specimen at as-received moisture content | + £ 55.00 per specimen |
| Remoulding specimen to a specified moisture content | + £ 66.00 per specimen |
Results given
- Peak Shear Strength(s)
- Residual Shear Strength(s) if required
- Displacement(s) at peak
You provide
- Test Type (peak only, peak & residual, single specimen, set of 3 etc.).
- Remoulding conditions (if applicable).
- Normal Stress(es) (eg. 50,100,200 kPa).
Typical use(s)
Slope stability
Material required
Undisturbed:
- Enough intact material to trim down to a 300 mm square by 150 mm high block for each specimen required. (usually block samples, well wrapped, padded, and packed in a stout wooden box or crate).
Remoulded:
- Approximately 30 kg of < 20 mm material per specimen.
Note:
If the particles are weak and break down during testing (such as weathered sandstone or crushed concrete), then fresh material must be used for each specimen, requiring around 90kg for a set of 3 specimens. If material is available in limited quantities but can be re-used without degradation for subsequent specimens, then 40 kg will be sufficient for a set of 3 but will significantly increase turnaround times due to drying/wetting times between specimens.
300mm Shearbox
Ring Shear - Residual Shear Strength
Residual Shear Strength by Ring Shear
| Description | Price |
| Residual shear strength on a remoulded consolidated drained ring shear specimen (including preparation). (BS EN ISO 17892) |
£ 195.00 per specimen (up to 4 days duration, including preparation) |
| Extra over days in excess of initial 4 days | + £ 27.50 per day per specimen (usually 2 extra days required for 3 stages) |
| ICP Design Methods for Driven Piles in Sands and Clays – Appendix A – Standard Test Procedure for Soil-Steel Interface Ring Shear Tests : 2005 (ICP Design Methods For Driven Piles In Sands And Clays : 2005) |
£ 210.00 per specimen (up to 4 days duration, including preparation) |
| Extra over days in excess of initial 4 days | + £ 27.50 per day per specimen (usually 2 extra days required for 3 stages) |
Results given
Residual Shear Strength(s)
You provide
- Normal Stress(es) (eg. 50,100,200 kPa)
- Remoulding conditions (eg. NWC or liquid limit)
Typical use(s)
Slope stability
Material required
Ring Shear:
- Approximately 200 g of < 2 mm material per specimen.
ICP Ring Shear:
- Approximately 200 g of <0.425 mm material per specimen.
Empty Ringshear
Quick Undrained Triaxial Compression
Quick Undrained Triaxial Compression
| Description | Price |
| Single stage, single 38 mm or 106 mm diameter specimen. (BS EN ISO 17892-8:2018 ) |
£ 35.00 |
| Multistage, single 38 mm or 106 mm diameter specimen. (BS1377 : Part 7 : Clause 9 : 1990) |
£ 35.00 |
| Set of three 38mm diameter single stage specimens. (BS EN ISO 17892-8:2018) |
£ 60.00 per set of 3 specimens |
| Remoulding single specimen. | Dependant on specimen size |
| Remoulding set of three 38 mm diameter specimens. | + £ 20.00 per set of 3 specimens |
Results given
- Shear Strength(s).
- Deviator Stress(es) at failure.
- Strain(s) at failure.
You provide
- Remoulding conditions (if applicable)
- Confining Pressure(s) (eg. 50,100,200 kPa)
- Single or Multi-stage
Typical use(s)
- Pile design
- Immediate bearing capacity
Material required
Undisturbed:
- Sample with a core length of approximately 2:1 length:dia ratio of full diameter, intact material (ideally at least 2.5:1 length:dia to allow for trimming)
- Block sample twice the size of 2:1 length:dia sample required.
Remoulded:
- 200 g of < 6 mm material for 38 mm dia. specimen.
- 4 kg of < 20 mm material for 100 mm specimen.
Quick Undrained Triaxial
Sample Preparation
UCS
Unconfined Compressive Strength
| Description | Price |
| Unconfined Compressive Strength on a single soil specimen. (BS EN ISO 17892-7:2018) |
£ 26.50 |
| Remoulding single specimen. | Dependant on specimen size |
| Remoulding set of three 38 mm diameter specimens. | + £ 20.00 per set of 3 specimens |
Results given
- Unconfined Compressive Strength.
- Strain at failure.
You provide
Remoulding conditions (if applicable)
Typical use(s)
- Pile design
- Immediate bearing capacity
Material required
Undisturbed:
- Liner sample with at least 1.5 length:dia of intact material (ideally 2.5+:1 length:dia)
- Block sample twice the size of 2:1 length:dia sample required.
Remoulded:
- 200 g of < 6 mm material for 38 mm dia. specimen.
- 4 kg of < 20 mm material for 100 mm specimen.
Hand Vane - Shear Strength
Hand Vane – Shear Strength
| Description | Price |
| Hand Vane Shear Strength (3 determinations) |
£ 12.50 |
Results given
Shear Strength
You provide
Number of determinations required.
Typical use(s)
- Quick, inexpensive shear strength determination
- Pile design
- Immediate bearing capacity
Material required
These tests are usually performed in-situ (on trial pit walls etc.) to get a quick indication of the shear strength. Geolabs provides only laboratory based testing and so cannot perform these tests in-situ. The laboratory vane test is a more controlled version of the test more suited to undisturbed samples in the laboratory. If required we can perform hand vane tests in the laboratory (with the same material requirements as the laboratory vane) but this is not a BS1377 test.
Laboratory Vane - Shear Strength
Laboratory Vane – Shear Strength
| Description | Price |
| Laboratory Vane Shear Strength (5 determinations) (BS1377-2 : 2022 : 24) |
£ 40.00 |
| Remoulded shear strength. | £ 15.00 |
Results given
Shear Strength.
You provide
Remoulding conditions (if applicable).
Typical use(s)
- Pile design
- Immediate bearing capacity
Material required
These tests are usually performed in-situ (on trial pit walls etc.) to get a quick indication of the shear strength. Geolabs provides only laboratory based testing and so cannot perform these tests in-situ. The laboratory vane test is a more controlled version of the test more suited to undisturbed samples in the laboratory. If required we can perform hand vane tests in the laboratory (with the same material requirements as the laboratory vane) but this is not a BS1377 test.
Lab Vane
Pocket Penetrometer
Pocket Penetrometer
| Description | Price |
| Pocket Penetrometer Shear Strength. (up to 3 determinations) |
£ 12.50 per determination |
Results given
Shear Strength
You provide
No information required.
Typical use(s)
- Quick, inexpensive indication of shear strength, but it should only be used when other, more preferable and accurate determinations of shear strength are not possible.
- Pile design
- Immediate bearing capacity
Material required
Intact lump at least 4cm cubed for single determination (larger sample will give more determinations)
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