A Review on the Application of Bio-oil as an Additive for Asphalt

Abstract

Raising the prices of crude petroleum is affected to good performance for the asphalt paving and has encouraged to modify or replace asphalt bitumen. Increasing numbers of commercial vehicles and increase axle load that this trend will continue yearly. Design, construction and maintenance facilitate asphalt roads to provide the high standards of safety and comfortable but certain areas of a road are higher stressed than others. For that reason road paving industry is interested in utilizing alternative and sustainable binder materials for modified asphalt to improve the production, placement and performance of asphalt mixtures. However, sources of materials should be considered economically and environtmentally viable after applied in pavement. According to previous research, that has been developed that non crude petroleum binder derived from the production of bio-oil through fast pyrolysis of biomass. The main source of bio-oil can be contributed from biomass industry or renewable organic industry such as timber waste, oil palm waste, rice husk; coconut trunk fibers, municipal waste and sugar cane waste. Alternatively, the bio-oil can be as substitute material as modification of asphalt. This paper presents a review on the source, characteristic of bio-oil and the effects of bio-oil on the properties of asphalt bitumen.

Aging effect on rheology and cracking behaviour of reclaimed binder with bio-based rejuvenators

“…Recently, different types of organic oils have been tested as recycling agents to restore the viscosity and elasticity of aged asphalt (Zhang et al, 2017). For instance, recycled cooking oil is a good candidate for improving the low-temperature grade (Qurashi and Swamy, 2018;Raman et al, 2015;Sun et al, 2017). In another research, polyethylene terephthalate (PET) derived products have been seen as a performance-enhancing additive for asphalt (Leng et al, 2018).…”

Waste materials in highway applications: An overview on generation and utilization implications on sustainability

“…The adoption of alternative binder materials offers sustainability in terms of the material's life cycle environmental impact. Bio-oils are renewable energy sources obtained from the conversion of biomasses (agricultural and other organic wastes), that can be incorporated into bituminous blends as a modifier in producing bioasphalt (Raman et al, 2015).…”

“…Among the numerous techniques, pyrolysis remains the most adopted, due to its operational simplicity. Pyrolysis, conducted in the absence of oxygen, converts biomass into three distinct products: a condensable liquid (bio-oil), charcoal, and a gaseous blend (syngas) (Raman et al, 2015). Bio-oils, with densities around 1200 g per litre at 15 C and energy content of up to 18 MJ per kilogram are normally the target product of the pyrolysis process.…”

“…Bio-oils, with densities around 1200 g per litre at 15 C and energy content of up to 18 MJ per kilogram are normally the target product of the pyrolysis process. In the fast pyrolysis process, the biomass feedstock is heated rapidly under two seconds to get the constituent parts to temperatures ranging between 400 and 550 C (Raman et al, 2015). However, the thinner the dimensions of the particles, the faster the heat transfer process, which is consequential in improved quality and yield of the bio-oil (Tayh et al, 2014).…”

Biogeochemical potential of biomass pyrolysis systems for limiting global warming to 1.5 °C

“…already today efficient at small scales and are run by small landholders (Schmidt et al 2017); thus PyCCS allows implementation and associated income gain at small-scale or even subsistence farming level (Solomon et al 2016). Furthermore, particularly the advanced PyCCS approach offers economic incentives by material-use pathways (table 1), ranging from building and composite materials (Gupta and Kua 2017), road construction (Raman et al 2015), chemical industry (Crombie and Masek 2014) to electronics (Gu et al 2015). Every material-use pathway will serve carbon sequestration, as long as the products are not burnt or otherwise decomposed.…”