ARTEAGA, L.:
74th RILEM Annual Week and 40th Cement and Concrete Science Conference At: Sheffield, United Kingdom.
Abstract
This paper presents the synthesis and characterization of biopolymeric capsules for asphalt self-healing, where bio-oil from liquefied agricultural biomass waste was used as an eco-friendly rejuvenating agent for asphalt materials. Bio-oil polymeric capsules were synthesized using simple dripping technique by syringe pump device, where the bio-oil was encapsulated by ionic gelation in a polysaccharide polymer matrix of sodium alginate. Morphology, thermal stability, mechanical and physical-chemical properties of bio-oil capsules and their components were evaluated. Self-healing efficiency of the bio-oil as rejuvenating agent in cracked bitumen samples was quantified by fluorescence microscopy techniques. Main results proven that the bio-oil can be diffused in the bitumen samples reducing their viscosity and consequently healing the open microcracks.