01151227

Component

https://doi.org/10.3141/2186-14

http://scholar.google.com...+Kim&publication_year=2010

The production and use of biofuel have increased under the context of sustainable development. Biofuel production from plant biomass not only produces biofuel or ethanol but also coproduces products containing lignin, modified lignin, and lignin derivatives. The use of lignin-containing biofuel coproduct in pavement soil stabilization was explored as a new application area. The primary experimental test plan encompassed the comparison of coproduct-treated soils, untreated soils, and traditional stabilizer-treated soils in terms of their strengths. The focus of the secondary experimental test plan was to investigate the effect of additive combinations on strength improvement. The laboratory test matrix in each test plan included variations in additive type, additive content, curing period, and moisture condition. Statistical analyses were performed on unconfined compression strength test results to evaluate whether the strength improvements resulting from the addition of the coproducts to soils are significant. Results indicated that the biofuel coproducts are effective in stabilizing the Iowa Class 10 soil classified as CL or A-6(8). Strengths comparable to traditional additive (fly ash) could be obtained through the use of combined additives (Coproduct A  fly ash; Coproduct A  Coproduct B). The use of biofuel coproduct as a stabilization material for soil appears to be one of many viable answers to the profitability of the biobased products and the bioenergy business.

01328521

10-2340

English

pp 130-137

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309160599

Print

Figures (4) ; Photos (2) ; References (31) ; Tables (6)

Biomass; Compressive strength; Fly ash; Laboratory tests; Lignin; Moisture content; Products; Soil stabilization

Curing time; Unconfined compressive strength

Iowa

Geotechnology; Highways; Materials; Pavements; I42: Soil Mechanics

TRIS, TRB, ATRI

Jan 25 2010 11:05AM

• Analysis Method for Drilled Shaft–Stabilized Slopes Using Arching Concept
• Characterization of Two-Layer Soil System Using a Lightweight Deflectometer with Radial Sensors
• Combined Use of Calcium Chloride and Fly Ash in Road Base Stabilization
• Cone Penetration Test Sounding and Pile Driving: Case History of I-10 Twin Span Bridges in Louisiana
• Energy Efficiency and Rod Length Effect in Standard Penetration Test Hammers
• Estimation of Resilient Modulus of Subgrade Soils Using Falling Weight Deflectometer
• Evaluation of Characterization and Performance Modeling of Cementitiously Stabilized Layers in the "Mechanistic–Empirical Pavement Design Guide"
• Field Rutting Performance of Various Base and Subbase Materials Under Two Types of Loading
• Implementation of Quality Management of Base Materials with Seismic Methods: Case Study in Texas
• Innovative Soft Soil Stabilization Using Simultaneous High-Vacuum Dewatering and Dynamic Compaction
• Investigation and Implications of Mechanically Stabilized Earth Wall Corrosion in Nevada
• Performance-Based Design of Deep Foundation Systems in Load and Resistance Factor Design Framework
• Post–Soil Interactions on Guardrails Near the Crown of a Slope: Theoretical Aspects
• Resilient Modulus of Clay Subgrades Stabilized with Lime, Class C Fly Ash, and Cement Kiln Dust for Pavement Design
• Stiffness Characterization of Reinforced Asphalt Pavement Structures Built over Soft Organic Soils
• Variability in Construction of Cement-Treated Base Layers: Material Properties and Contractor Performance