01557462

Component

https://doi.org/10.3141/2505-16

The increasing costs and strong worldwide demand for petroleum and the adverse environmental impact of the consumption of nonrenewable energy sources have encouraged the development of alternative sources of renewable energy. One source of renewable energy can be developed in biorefineries, where biomass feedstocks can be converted to biocrude oil through thermochemical processes. Biocrude oil can replace petroleum-based transportation fuels and can be used to build and maintain transportation infrastructure, which requires an energy-intensive process that consumes natural resources, including mineral aggregates, steel, cement, and petroleum-based binder. This study aimed to characterize biocrude oil as an alternative binder material, which is referred to here as biobinder. The hydrothermal liquefaction technique was used to produce biobinder from spirulina algae (microalgae), swine manure, and nanoalgae. A chemical analysis was performed with the saturates, aromatics, resins, and asphaltenes technique to characterize the percentage of different components present in the biobinder. A rheological characterization of biobinders was conducted to evaluate their feasibility for use in pavement construction and to predict their performance during the service life of a pavement. Surface free energy properties of biobinders also were determined with the use of a sessile drop device to characterize adhesion properties. The results indicated that biobinder had significantly different rheological and chemical properties than conventional asphalt binder. When blended with conventional binder, biobinder showed the potential to reduce the stiffness of original binder. As a result, it might be used to rejuvenate mixes with recycled asphalt materials or find an application under low-temperature conditions.

01587029

15-5638

English

pp 121–129

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309369312

Print

Figures (5) ; Photos; References (23) ; Tables (2)

Asphalt mixtures; Binders; Biomass; Chemical properties; Rheological properties; Rheology

Biobinders

Highways; Materials; Pavements; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Dec 30 2014 1:54PM

• Alternative Approach Toward the Aging of Asphalt Binder
• Asphalt Concrete Layer to Support Track Slab of High-Speed Railway
• Backcalculation of Swollen Crumb Rubber Modulus in Asphalt Rubber Binder and Its Relation to Performance
• Comparison of Concentric Cylinder and Parallel Plate Geometries for Asphalt Binder Testing with a Dynamic Shear Rheometer
• Effect of Aging on Adhesion Properties of Asphalt Mixtures with the Use of Bitumen Bond Strength and Surface Energy Measurement Tests
• Effects of Asphalt Source, Asphalt Grade, and Inclusion of Additives on Asphalt Foaming Characteristics
• Effects of Stress Levels on Creep and Recovery Behavior of Modified Asphalt Binders with the Same Continuous Performance Grades
• Evaluation of Oxidization of Crumb Rubber–Modified Asphalt During Short-Term Aging
• Field Validation of a Thermal Cracking Resistance Specification Framework for Modified Asphalt
• Improved Practical Model for Permeability and Implications for the Design of High-Performance Hot-Mix Asphalt
• Modification of the Resistivity-Rutting Model to Use Recoverable Creep Compliance
• Prediction of Rheological and Damage Properties of Asphalt Binders That Result from Oxidative Aging
• Rheological Indexes: Phenomenological Aspects of Asphalt Binder Aging Evaluations
• Study of Asphalt Aging Through Beam Fatigue Test
• Wetting Characteristics of Asphalt Binders at Mixing Temperatures