This study focuses on producing asphalt with improved rheological properties that differ from the original asphalt and are less affected by aging conditions. The rheological properties of Qayara asphalt were enhanced by modifying the asphalt using spent rubber tire (SRT) with different percentages of anhydrous aluminum chloride. Percentages ranging from 1.0% by weight of the spent tire rubber were added after proceeding with the thermal crushing process. The percentages of anhydrous aluminum chloride catalyst were 0.4 and 0.8%, respectively. This mixture was microwaved at 270 watt of power for 4, 8, and 12 min, respectively. The measurements performed are plasticity, penetration, softening point, and penetration index. The previously mentioned measurements were also made on the modified asphalt one year after the modification process to understand the effect of aging conditions. The microstructure and thermodynamics have been characterized by FE-SEM and EDX measurements. This study provides good rheological properties of the modified bitumen binder that is aging-resistant.

The current research aims to evaluate the photocatalytic activity of (TiO2) with various loading ratios (5%-60%) supported on mesoporous aluminosilicate (zeolite type) called Siral, with aluminum content ranging from 20% to 70%, to enhance the performance of degradation of ibuprofen (IBP) as a pharmaceutical pollutant. The batch reactor is furnished with solarium light to simulate sunlight UV for efficient degradation. The supported substance (Siral) exhibits elevated surface area and a regular mesoporous structure; hence, it might be regarded as an efficient photocatalyst support. The characterizations and effectiveness of the prepared catalyst were achieved by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM) and UV-visible spectroscopy. The results exhibit the highest photo-degradation ratio (90%) for (60% TiO2/Siral40) after 4 hours. The highest surface area is 448.3685 m²/g for 15% TiO₂/Siral40. The photodegradation efficiency increases as the weight percentage of TiO2 particles rises from 5 to 60 %. TiO2/Siral NCs photocatalysts demonstrate remarkable photostability and reusability, especially in organic molecule degradation.