Field Density Test by Sand Replacement Method (Small & Large Pouring Cylinder) / Core Cutter Method
This test determines in-situ of the density of natural or compacted soil containing coarse-grained particles. It is an alternative to test for fine and medium-grained soils instead of testing for layers exceeding 150mm but not exceeeding 250mm in thickness.
Test Method : BS 1377 Part 9 : 1990 Clause 2.2 / Clause 2.4
In-situ California Bearing Ratio (CBR)
The test determines the relationship between force and penetration when a cylindrical plunger of a standard cross-sectional area is made to penetrate the soil at a given rate. At certain values of penetration, the ratio of the applied force to a standard force, expressed as a percentage, is defined as the California Bearing Ratio (CBR).
Test Method : BS 1377 Part 9 : 1990 Clause 4.3
Mackintosh Probe Test/ JKR Probe Test
This test determines the resistance of soils in-situ to the intermittent penetration of a steel cone when driven dynamically in a standard manner.
Test Method : BS 5930 : 1999
Plate Bearing Test
This method covers the determination of the vertical deformation and strength characteristics of soil in-situ by assessing the force and amount of penetration with time when a rigid plate is made to penetrate the soil. The method can be carried out at the ground surface, in pits, trenches, and at depth in the bottom of a borehole.
Test Method : BS 1377 Part 9 : 1990 Clause 4.1
Hand Augur Boring (Soil Sampling)
The hand augur boring method uses light hand-operated equipment. The augur and drill rods are lifted out of the borehole without the aid of tripod, and no borehole casing is used. Boreholes up to 200mm diameter may be made in suitable ground conditions to a depth of about 5 meters.
The test determines the relationship between force and displacement of a hybrid anchor to the load specified. The anchor is loaded in incremental cycles from a datum load to a maximum test load or to failure. The loss of load at the anchor head is measured over a period of time at the lock-off load and at the maximum load in each incremental cycle.