Online Resource 5. Geotechnical Pavement Components Selection Decision Matrix

Base/Subbase Layer

Technology / Plastic Sands and Gravels / Silty Sands and Gravels / Clean Sands and Gravels
Increase strength/
stiffness / Mitigate moisture/
drainage problems / Increase freeze/
thaw durability / Decrease contamination / Increase strength/
stiffness / Mitigate moisture/
drainage problems / Increase freeze/
thaw durability / Decrease contamination / Increase strength/
stiffness / Decrease contamination
Bio-Treatment for Subgrade Stabilization
Chemical Stabilization of Subgrades and Bases /  /  /  /  /  /  / 
Electro-Osmosis
Excavation and Replacement /  /  /  /  /  / 
Fiber Reinforcement in Pavement Systems /  /  / 
Geocell Confinement in Pavement Systems /  /  / 
Geosynthetic Reinforcement in Pavement Systems /  /  / 
Geosynthetic Separation in Pavement Systems /  /  / 
Geosynthetics in Pavement Drainage /  / 
Intelligent Compaction /  /  / 
Mechanical Stabilization of Subgrades and Bases /  /  / 
Partial Encapsulation
Traditional Compaction /  /  / 

Online Resource 5. (Cont.) Geotechnical Pavement Components Selection Decision Matrix

Subgrade Layer (Part 1 of 2)

Technology / High-plasticity soils / Low-plasticity soils
Increase strength/
stiffness / Mitigate moisture/
drainage problems / Improve volumetric stability / Increase strength/
stiffness / Mitigate moisture/
drainage problems / Increase freeze/
thaw durability
Bio-Treatment for Subgrade Stabilization /  / 
Chemical Stabilization of Subgrades and Bases /  /  /  /  /  / 
Electro-Osmosis /  /  /  / 
Excavation and Replacement /  /  /  /  /  / 
Fiber Reinforcement in Pavement Systems / 
Geocell Confinement in Pavement Systems /  / 
Geosynthetic Reinforcement in Pavement Systems /  / 
Geosynthetic Separation in Pavement Systems
Geosynthetics in Pavement Drainage /  / 
Intelligent Compaction /  / 
Mechanical Stabilization of Subgrades and Bases /  / 
Partial Encapsulation / 
Traditional Compaction /  / 

Online Resource 5. (Cont.) Geotechnical Pavement Components Selection Decision Matrix

Subgrade Layer (Part 2 of 2)

Technology / Plastic sands and gravels / Silty sands and gravels / Clean sands and gravels / Rock fill
Increase strength/
stiffness / Mitigate moisture/
drainage problems / Increase freeze/
thaw durability / Increase strength/
stiffness / Mitigate moisture/
drainage problems / Increase freeze/
thaw durability / Increase strength/
stiffness / Increase strength/
stiffness / Mitigate moisture/
drainage problems
Bio-Treatment for Subgrade Stabilization /  /  / 
Chemical Stabilization of Subgrades and Bases /  /  /  /  /  /  / 
Electro-Osmosis
Excavation and Replacement /  /  /  /  /  /  /  / 
Fiber Reinforcement in Pavement Systems /  /  / 
Geocell Confinement in Pavement Systems /  /  / 
Geosynthetic Reinforcement in Pavement Systems /  /  /  / 
Geosynthetic Separation in Pavement Systems
Geosynthetics in Pavement Drainage /  /  / 
Intelligent Compaction /  /  /  / 
Mechanical Stabilization of Subgrades and Bases /  /  /  / 
Partial Encapsulation
Traditional Compaction /  /  /  / 

Selection assistance for the evaluation of geoconstruction technologies

Douglas, Schaefer, and BergGeotechnical and Geological Engineering

Caleb Douglas (Corr. Author) Page 1 of 3