Effect of Lignin Modifier on Engineering Performance of Bituminous Binder and Mixture

Abstract

Lignin accounts for approximately 30% of the weight of herbaceous biomass. Utilizing lignin in asphalt pavement industry could enhance the performance of pavement while balancing the construction cost. This study aims to evaluate the feasibility of utilizing lignin as a bitumen performance improver. For this purpose, lignin derived from aspen wood chips (labeled as KL) and corn stalk residues (labeled as CL) were selected to prepare the lignin modified bituminous binder. The properties of the lignin modified binder were investigated through rheological, mechanical and chemical tests. The multiple stress creep recovery (MSCR) test results indicated that adding lignin decreased the Jnr of based binder by a range of 8% to 23% depending on the stress and lignin type. Lignin showed a positive effect on the low temperature performance of asphalt binder, because at −18 °C, KL and CL were able to reduce the stiffness of base binder from 441 MPa to 369 MPa and 378 MPa, respectively. However, lignin was found to deteriorate the fatigue life and workability of base binder up to 30% and 126%. With bituminous mixture, application of lignin modifiers improved the Marshall Stability and moisture resistance of base mixture up to 21% and 13%, respectively. Although, adding lignin modifiers decreased the molecular weight of asphalt binder according to the gel permeation chromatography (GPC) test results. The Fourier-transform infrared spectroscopy (FTIR) test results did not report detectable changes in functional group of based binder.

Optimizing the Texturing Parameters of Concrete Pavement by Balancing Skid-Resistance Performance and Driving Stability

“…The skid resistance force has been considered a critical indicator of the concrete pavement performance by the Portland Cement Association (PCA) and American Association of State Highway and Transportation Officials (AASHTO) [ 28 , 29 , 30 , 31 , 32 ]. Related studies have proven that the skid-resistance is influenced by many factors, including the pavement surface texture, tire type, tire–pavement friction, or other factors such as the speed, water film depth, and temperature, among which the tire–pavement friction is a primary factor [ 33 , 34 , 35 , 36 ].…”

Study on pavement performance of cotton straw cellulose modified asphalt

“…Mineral fiber can effectively improve the high-temperature stability and low-temperature crack resistance of asphalt, and its improvement mechanism is viscosifying, crack resistance and toughening, which saves the road cost [8]. Lignin fiber is a potential green biological resource with good source and high aromatic content [9]. By testing the tensile strength, shear strength, permeability and indirect tensile strength of fiber asphalt mixture, it is found that fiber can increase the viscoelasticity of asphalt, reduce the stiffness and permeability of asphalt pavement, and improve the low-temperature cracking resistance of asphalt pavement [10][11][12][13][14].…”

High‐performance atactic polypropylene modified bitumen blends fabricated via conventional, hot, and in‐situ blending techniques

“…Extensive studies on the utilization of polymers as a modifier in bitumen for property modification include improving fatigue resistance, minimizing reflective cracking, increasing low-temperature cracking resistance, increasing tenacity (structural stability), and increasing thermal stability. 8 Various polymeric materials including polypropylene, 9 high-density polyethylene, 10 acrylonitrile butadiene styrene, 11 thermoplastic polyurethane, 12 polyethylene terephthalate 13 (self), nylon, 14,15 and various elastomers including natural rubber, nitrile rubber, styrenebutadiene rubber, carboxylated acrylonitrile butadiene, and hydrogenated acrylonitrile butadiene owing to their high-performance properties are used as modifiers in bitumen. [16][17][18] Cai et al 19 investigated the use of polyacrylamide as a stabilizer material and styrene as a coagulant to prepare latex-modified bitumen emulsions of styrene block copolymers (30% polystyrene).…”