Sustainability 2023, 15, 14653 Figure 8. Main chemical compositions of SSA and SSP are given by XRF analysis. The mixing temperature of asphalt concrete will be less than 200 °C even for the mod- ified asphalt concrete. To determine whether SSP can maintain stability at the mixing tem- pe...
Evaluating the Rheological Properties The complex modulus (G*) and the phase angle (δ) of the 90 A and the GO-modiffiied 90 A before aging and after TFOT aging are shown in Figure 9. In general, a nano-material powder always brings a hardening effect to the asphalt, and G* alwwaa...
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= or =+ (8) Thwehfeareti:gue life is defined as the number of cycles where the stiffness is half of the initial value. Fatigue relaNtfi=onnushmibpesraorfecodnesstacnritbsetrdainusaipnpglicEaqtiuonastiuonnti(l8th).e specimen reaches half of the initial stiffness, ε = applied strain ...
Appl. Sci. 2023, 13, 10308. https://doi.org/10.3390/ app131810308 Abstract: The bee structure of an asphalt binder surface changes during the aging and rejuvenation process, and the effect of this microstructural change on the mechanical properties of the asphalt binder is not clear. ...
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(8) where: Na is the allowable number of repetitive loads in the asphalt layer; εt is the horizontal tensile strain under the asphalt layer; Ea is the asphalt dynamic modulus (psi); Nd is the allowable number of repetitive loads in the subgrade layer; σc is the compressive stress on ...
Adding various polymers and composite mod- ifiers can also improve the high and low-temperature performance, water stability, and adhesion of CPAM. However, due to the different density, polarity, and molecular structure between polymers and asphalt, their compatibility is poor, and they easily ...
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/0.05(mm) 1792 1792 2048 2048 (a) (b) (a) (b) Figure 8. Comparison between the original surface and the 3D reconstructed surface: (a) original FFipiggauuvrreeem88e..nCCtootemmxptpuaarrreiis;so(obnn)bbreeetctwwoneeefiengnutthrheeedooprriaiggviiennmaallesnsuutrrtffeaaxccteeuaraenn.dd...