000			03618nam a22003377a 4500
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008			260406t20252025my a|||fr|||| 000 0 eng d
020			_aTHE0010432 (Local) _qHardback
040			_aUMPSA _beng _cUMPSA _erda
090			_aFTKA .S934 2025 r Thesis
100	1		_aNur Syafiqah Shamimi Binti Mohd Zali, _eauthor.
245	1	0	_aPerformance evaluation of stone mastic asphalt mixture incorporating nano titanium dioxide powder / _cNur Syafiqah Shamimi Binti Mohd Zali
264		1	_aKuantan, Pahang : _bUMPSA, _c2025
264		4	_a _c© 2025
300			_axvii, 178 pages : _billustrations (some color) ; _c30 cm. + _e1 CD-ROM
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
347			_2rda _atext file _bPDF
500			_aFaculty of Civil Engineering Technology
502			_aThesis (Doctor of Philosophy in Civil Engineering) -- Universiti Malaysia Pahang Al Sultan Abdullah - 2025
504			_aIncludes bibliographical references
520	3		_aNanomaterials have emerged as promising modifiers for asphalt binders due to their sustainable nature and potential to enhance flexible pavement performance. Stone Mastic Asphalt (SMA), known for its durability, stands to benefit from such enhancements. However, limited research exists on the mechanical behaviors of SMA incorporating nano titanium dioxide (nano-TiO₂). This study aims to evaluate the physical, morphological, and chemical characteristics of asphalt binder and SMA modified with nano-TiO₂. Laboratory tests including softening point, penetration, and rotational viscosity were conducted using 1–5% nano-TiO₂. Advanced chemical and morphology properties of modified bitumen are done through tests consist of Fourier Transform Infrared Analysis (FTIR),X-Ray Diffraction (XRD), and Scanning Electron Microscope-Energy-Dispersive X-ray Spectrocospy (SEM-EDX) which are applied for 2–4% nano titanium dioxide. These 2-4% samples are chosen due to their ability to influence the particles in certain amounts. It is further assessed in performance tests on asphalt mixtures like moisture susceptibility, resilient modulus, permanent deformation, and binder drain-down. In addition, mechanical property relationships and a dynamic creep model were established using finite element analysis. The findings show that nanotitanium dioxide enhances different binder properties at varying dosages, with improvements observed at 3% for softening point, 4% for penetration, and 1% for rotational viscosity. While 3% nano TiO₂ notably improves binder properties as can be seen from FTIR, XRD and SEM-EDX results. As for mixture performance, achieving a tensile strength ratio (TSR) of 108%, at 2% showing the lowest binder drain-down. Dynamic creep and resilient modulus also showed that 3% inclusion of nano titanium dioxide improve their behavior. The finite element analysis later is done to compare the laboratory and finite element results. Overall, after considering the improvement and influence nano titanium content has on the binder and the SMA mix, 3% is deemed the suitable content in overall improvement of stone mastic asphalt mix. This study demonstrates the potential of nano TiO₂ to enhance SMA’s mechanical behavior, particularly in abridging rutting, fatigue, and moisture related distresses.
610	2	0	_aFaculty of Civil Engineering Technology _xDissertations
650		0	_aUniversities and colleges _xDissertations
650		0	_aTheses _xDissertations
942			_2lcc _cTHESIS
999			_c104613 _d104619