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RISLaboratory Investigation for the Road Performance of Asphalt Mixtures Modified by Rock Asphalt–Styrene Butadiene Rubber
Publisher: ASCE
Abstract: In this paper, styrene butadiene rubber (SBR) was utilized to improve the low-temperature performance of Buton-rock asphalt (BRA)-modified asphalt. Firstly, the optimum content of SBR modifier agent was determined by basic ...
Comprehensive Properties Evaluation of Modified Bio-Asphalt Mixture Based on Comparison Matrix
Publisher: ASCE
Abstract: The comprehensive properties evaluation index of asphalt mixture has the characteristics of multilevel and multifactor. The weight of each road performance index is the key factor to assess the comprehensive properties of ...
Preparation and Performance of Polyphosphoric Acid/Bio-Oil Composite–Modified Asphalt Containing a High Content Bio-Oil
Publisher: ASCE
Abstract: As an important ecofriendly material in pavement engineering, bioasphalt has received more and more attention recently. However, the negative high-temperature behavior of bioasphalt limits its extensive application. With ...
Setting Time Measurement of Concrete Mixtures through Monitoring of Shear-Wave Velocity with Shear-Horizontal Waves
Publisher: ASCE
Abstract: While the monitoring of longitudinal (P) waves has been widely investigated to estimate the initial setting time of concrete mixtures based on the variation in P-wave velocities, it is difficult to accurately estimate the ...
Polyphosphoric Acid Modified Soybean Oil Bioasphalt: Rheological Properties and Modification Mechanism
Publisher: ASCE
Abstract: A large amount of soybean oil (20%–30% mass ratio of neat asphalt) was selected to partially replace petroleum asphalt. The high-temperature behavior of soybean oil bioasphalt was enhanced by polyphosphoric acid (PPA). ...
Performance Check of Asphalt Mixture Layer Based on Yield Criterion and Normalized Fatigue Equation
Publisher: ASCE
Abstract: The fatigue resistance of an asphalt mixture is crucial to the pavement’s durability and serviceability of pavement. The pavement structure is in a three-dimensional (3D) stress state. However, the conventional fatigue-resistance ...
Automatic Corrosive Environment Detection of RC Bridge Decks from Ground-Penetrating Radar Data Based on Deep Learning
Publisher: ASCE
Abstract: Detecting the corrosive environment of reinforced concrete (RC) bridge decks is of critical importance for evaluating the reliability and safety of bridge structures. However, accurately and automatically detecting a ...
Correlation Analysis of Chemical Components and Rheological Properties of Asphalt After Aging and Rejuvenation
Publisher: ASCE
Abstract: To study the correlation between the chemical composition and rheological properties of neat asphalt after aging and rejuvenation, the neat asphalt with different aging time was prepared, and its rheological properties ...
Three-Dimensional Failure Criterion of Asphalt Mixtures in Asphalt Pavement
Publisher: ASCE
Abstract: Material resistance and performance are determined by the failure criterion for an asphalt mixture, affecting the scientific design of pavement. Conventional tensile, compression, bending, and split tests for asphalt mixture ...
Investigations on Strength Characteristics of High-Modulus Asphalt Mixtures under Different Conditions
Publisher: ASCE
Abstract: Due to viscoelastic characteristics, the strength values of the high-modulus asphalt mixtures (HMAM) obtained under different conditions (temperatures, loading rates, and stress states) are quite different, and the serving ...