Soil Classification Testing

Our soil testing is carried out by experienced laboratory technicians and managed within a fully compliant laboratory management system.  These tests include water content, liquid and plastic limits, shrinkage tests, density, specific gravity and particle size distributions.   They are used in conjunction with soil descriptions to help identify soil types and the engineering category of the soil. They are useful tests of relatively low cost that can be used for foundation design, earthworks categorisation and permeability assessments.  Common oversights in scheduling these tests include unsuitable material for plastic and liquid limits and insufficient sample; for example, 20kgs of sample is required to carry out a particle size distribution on a coarse grained soil. 


Suitability of Soils for Road Construction and Earthworks

Our soil testing is carried out by experienced laboratory technicians and managed within a fully compliant laboratory management system.  These tests include Dry Density/Moisture Content Relationships (compactions), moisture condition value (MCV), California Bearing Ratio (CBR) and Chalk Crushing Value (CCV).  They are used to assess the suitability of a soil for the compaction process, to determine the water content for the most efficient compactive effort, and to evaluate the mechanical strength of soil in the carriageway.  Common oversights in scheduling these tests include insufficient sample, for example a compaction in a CBR mould requires 80kg of sample to compliantly test a coarse grained crushable material.


Engineering Properties

Our soil and rock testing is carried out by experienced laboratory technicians and managed within a fully compliant laboratory management system.  These tests include one dimensional consolidation (Oedometers), permeability testing, direct shear in the small shear box, undrained shear strength, laboratory hand vane, Consolidated Undrained Triaxial Compression Test with Measurement of pore water pressure and Consolidated Drained Triaxial Compression Test with Measurement of Volume (effective stress testing).  The tests are used to determine the compressibility, shear strength and permeability of the soil to enable foundation design, slope stability and assessment of the soils transmissivity. Common oversights in scheduling these tests include omitting to add the required testing pressures, insufficient length of sample and incorrect sample type. 


Chemical Testing

We have the capability to carry out a wide range of chemical testing by using approved sub-contracted laboratories.  This includes testing in accordance with BRE SD1 Concrete in aggressive ground, organic content and loss of ignition, along with a wide range of contamination testing.  Please note that the geotechnical laboratory cannot accept any samples that are suspected or are known to be contaminated. 


 

 

 

 

 

 

 

 

 

 

 
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