Soil Compaction Testing Services

Alpha Adroit Engineering Ltd provides laboratory and field tesing for soil compaction measurement, including also soil compaction testing using nuclear densometer. The fastest way of measuring dry density and moisture content of soils in the field is using nuclear densometer testing. 

 Call us Toll Free: 1-844-4-ADROIT (1-844-4-237648) or please contact us here for more information.

"Soil Compaction" is densification of soil by reducing its air content using mechanical energy. Compacting a soil improves the performance of the soil and it’s engineering properties such as increasing its bearing capacity, decreasing its settlement under applied loads, increasing its shear strength, and reducing (generally) its permeability. 

The quality of compaction is measured by measuring its dry density and moisture content. Quality specifications generally require that the in-place dry density and moisture content of the compacted soil should be respectively within an acceptable range of its maximum dry density and optimum moisture content measured using Proctor test (Standard or Modified) or AASHTO test. Transportation departments may accept or prescribe other methods (such as Alberta Transportation's "Control Strip" test method). 

Assessment of the quality of compaction generally requires knowledge of soil type, Atterberg Limits (for fine grained soils), and Proctor curve for the soil.  

Proctor curve is a graphical presentation of the relationship between dry unit weight and moisture content of a soil under a pre-defined standard testing conditions (such as compaction energy). The shape of the proctor curve for fine grained soils depends on their liquid limit. 

Soil type defines how soil behaves under compaction. Soil characteristics such as grain-size distribution, shape of the soil particles, specific gravity, and the amount of fines, all play important roles in how the Proctor curve will look. Bell shaped Proctor curves are the most common in fine-grained soils. Organic soils (such as OL and OH) are not generally used as fill material for man-made structures because presence of organic matter in soil reduces its strength.Soils having more than 10% of organic content (by mass) are not recommended for compacted or engineered fill.

Alpha Adroit Engineering Ltd provides laboratory and field tesing for soil compaction measurement.The services include:

    • Standard and Modified Proctor tests for clays, gravel, mixed aggregates, and other soils
    • AASHTO laboratory maximum dry density 
    • Unified Soil Classification and Modified Unified Soil Classification System
    • Field soil compaction testing using nuclear densometer 
    • Field soil compaction testing using sand cone and baloon methods 
    • Field density testing for forensic geotechnical engineering projects (failure investigation and expert witness) using specialty methods
    • Development of soil compaction criteria for soils that cannot be tested using Proctor or AASHTO methods
    • Field density assessment using "Control Strip" test method
    • Winter construction of engineered fills/embankments and soil testing
    • Nuclear density testing for frozen soils in Permafrost Regions 
    • Evaluation of bearing capacity of compacted soils
    • Evaluation of settlement and lateral defomations of compacted soils (backfills, embankments, general engineered fills, etc)
    • Instrumentation, monitoring, advanced numerical modeling, and Observational Method based analysis and design
    • Numerical modeling and geotechnical risk analysis
    • Repair consultation  
    • Forensic, preventive, and remedial geotechnical engineering 

Alpha Adroit Engineering also provide other materials testingservices (such as concrete testing and grout testing) and other construction quality control services (such as pile inspection) for various size projects. 


 Call us Toll Free: 1-844-4-ADROIT (1-844-4-237648) or please contact us here for more information.