Effect of nano-TiO2 on physical and rheological properties of asphalt cement

Ahmed Mahir Mohammed; Alaa H. Abed

doi:10.1515/eng-2022-0520

Details

Publication Date

Mon Jan 01 2024

Journal Name

Open Engineering

Volume

14

Issue Number

1

DOI

10.1515/eng-2022-0520

Choose Citation Style

Statistics

View publication

261

Statistics

(3)

Effect of nano-TiO2 on physical and rheological properties of asphalt cement

nanomaterial

TiO2

DSR

BBR

asphalt

Ahmed Mahir Mohammed

Alaa H. Abed

...Show More Authors

AbstractIn recent years, nano-modified asphalt has gained significant attraction from researchers in the design of asphalt pavement fields. The recently discovered Titanium dioxide nanoparticles (TiO2) are among the most exciting and promising nanomaterials. This study examines the effect of 1, 3, 5, and 7% of nano-TiO2 by weight of asphalt on some of its rheological and hardened properties. The experimental study included physical and rheological properties. The asphalt penetration, softening point, ductility, and rotational viscometer tests indicate that 5% nano-TiO2 is the ideal amount to be added to bitumen as a modifier. The study of the rotating viscosity test showed that the addition of nano-TiO2 helped to increase viscosity and lessen bituminous sensitivity. Rutting factor in terms of <italic>G</italic>*/sin <italic>δ</italic> indicated the addition of 3 to 7% of nano-TiO2 increased the rutting resistance of asphalt against higher temperatures and promoted performance grade by about one grade at 3% and two grades at a range of 5–7% this suggests that nano-TiO2 increased the stiffness of the asphalt and leading to enhance the rutting performance of asphalt. While fatigue parameter, <italic>G</italic>*.sin <italic>δ</italic> shows that as nanocontent increases, higher stiffness at 5 and 7% of TiO2 content leads to an increase in complex modulus and a decrease in fatigue parameter. Higher creep stiffness and higher <italic>m</italic>-values were noted at low temperatures as nano increases in asphalt binder, increasing stiffness and decreasing the <italic>m</italic>-value at −6 and 12°C. As a result, using 5% nano-TiO2 will improve asphalt’s physical properties and enhance asphalt anit-rutting and fatigue resistance.

View Publication Preview PDF

Quick Preview PDF

Publication Date

Thu Jan 01 2015

Journal Name

Journal Of Nanomaterials

Comparative Studies on Thermal Performance of Conic Cut Twist Tape Inserts with SiO2and TiO2Nanofluids

Sami D.

Abdul Amir H.

Mohd S.

Abu Bakar

...Show More Authors

This paper presents a comparison study on thermal performance conic cut twist tape inserts in laminar flow of nanofluids through a constant heat fluxed tube. Three tape configurations, namely, quadrant cut twisted tape (QCT), parabolic half cut twisted tape (PCT), and triangular cut twisted (VCT) of twist ratio $y$ = 2.93 and cut depth $d_{e}$ = 0.5 cm were used with 1% and 2% volume concentration of SiO₂/water and TiO

View Publication

(8)

(5)

Publication Date

Fri Jul 29 2022

Journal Name

Journal Of Environmental Science And Health, Part A

Comparing the efficiency of N-doped TiO2 and commercial TiO2 as photo catalysts for amoxicillin and ciprofloxacin photo-degradation under solar irradiation

Rasha Khalid Sabri

Mohammed Sadeq

Noor A.

...Show More Authors

View Publication

(7)

Publication Date

Fri Oct 01 2021

Journal Name

Journal Of Physics: Conference Series

Photodetector based on Rutile and Anatase TiO2 nanostructures/n-Si Heterojunction

S.A.

I.M.

I. M.

...Show More Authors

Photodetector based on Rutile and Anatase TiO₂ nanostructures/n-Si Heterojunction

Publication Date

Tue Oct 01 2024

Journal Name

Journal Of Physics: Conference Series

An Effect of Al on the Properties of ZnIn2Se4 Thin Film

Husham Kamil

Bushra H.

...Show More Authors

AbstractZinc-indium-selenide ZnIn2Se4 (ZIS) ternary chalcopyrite thin film on glass with a 500 nm thickness was fabricated by using the thermal evaporation system with a pressure of approximately 2.5×10−5 mbar and a deposition rate of 12 Å/s. The effect of aluminum (Al) doping with 0.02 and 0.04 ratios on the structural and optical properties of film was examined. The utilization of X-ray diffraction (XRD) was employed to showcase the influence of aluminum doping on structural properties. XRD shows that thin ZIS-pure, Al-doped films at RT are polycrystalline with tetragonal structure and preferred (112) orientation. Where the ... Show More

View Publication

Publication Date

Tue Dec 01 2020

Journal Name

Journal Of Engineering Science And Technology

THE INFLUENCE OF CHEMICAL COMPOSITION OF ASPHALT CEMENT ON THE PHYSICAL AND RHEOLOGICAL PROPERTIES

ZAINAB

Mohammed Q.

...Show More Authors

Failure in asphalt mixture and distress in pavement are major issues to roads infrastructure. Selecting an appropriate chemical composition of asphalt cement is a key component in avoiding these issues. This work aimed to investigate the effect of the chemical composition of different polar fractions on the rheological and physical properties of asphalt cement. Four types of asphalt cement with penetration grades of 20/30, 40/50, 60/70 and 85/100 were divided into four fractions. Complex shear modules, rutting resistance and rotational viscosity of the asphalt cement were determined by using a Dynamic Shear Rheometer and a Rotation Viscometer, respectively. The results show that an increase in the asphaltene content and Gastel index resulte

Publication Date

Mon Jul 01 2019

Journal Name

Journal Of Physics: Conference Series

Effect of Nickel Substitution On Structural and Electrical Properties of Hg0.5Pb0.5Ba2Ca2Cu3-yNiyO8+δ Superconductor Composite

Laheeb A.

Kareem A.

...Show More Authors

Abstractsix specimens of the Hg0.5Pb0.5Ba2Ca2Cu3-y <italic>Niy </italic>O8+δ (y=0.2,0.4,0.6,0.8,1.0) superconducting compound were prepared by solid state reaction method, with sintering temperature equal to 1123K for 24 hours. The electrical resistivity was examined by the four probe technique, It was found that all the specimens have metallic behavior and increasing the critical temperature with increasing nickel concentration. The optimum critical temperature Tc was found equal ... Show More

View Publication

(4)

(3)

Publication Date

Wed May 01 2024

Journal Name

Journal Of Physics: Conference Series

Study of The Effect of Concentration on The Efficiency of The Sensitive N749-TiO2 Solar Cell

Mahdi

...Show More Authors

AbstractIn this research, we studied the effect of concentration carriers on the efficiency of the N749-TiO2 heterogeneous solar cell based on quantum electron transfer theory using a donor-acceptor scenario. The photoelectric properties of the N749-TiO2 interfaces in dye sensitized solar cells DSSCs are calculated using the J-V curves. For the (CH3)3COH solvent, the N749-TiO2 heterogeneous solar cell shows that the concentration carrier together with the strength coupling are the main factors affecting the current density, fill factor and efficiency. The current density and current increase as the concentration increases and the ... Show More

View Publication

Publication Date

Fri Feb 01 2019

Journal Name

Journal Of Physics: Conference Series

Manufacturing and studying the effect of partial substitution on the properties of the compound Bi2-x AgxSr1.9Ba0.1Ca2Cu3O10+δ superconductors.

Noor S.

Abdulsalam S.

Bilal A.

Naba

Kareem A.

Saja Amer

...Show More Authors

View Publication

(4)

(2)

Publication Date

Fri Feb 01 2019

Journal Name

Journal Of Physics: Conference Series

Study the effect of gamma Irradiation on the Superconducting Properties of HgBaSrCa2Cu3O8+δ

Suad

Anaam

Hind

Rihab

Kareem

...Show More Authors

View Publication

(1)

Publication Date

Sat May 01 2021

Journal Name

Journal Of Physics: Conference Series

Theoretical Estimation of Electronic Flow Rate at Al-TiO2 Interfaces System

Hadi J M

Taif Saad Al

AbdulKareem A

Suad H

Mohsin A

Rajaa Faisel

...Show More Authors

AbstractThe mechanism of the electronic flow rate at Al-TiO2 interfaces system has been studied using the postulate of electronic quantum theory. The different structural of two materials lead to suggestion the continuum energy level for Al metal and TiO2 semiconductor. The electronic flow rate at the Al-TiO2 complex has affected by transition energy, coupling strength and contact at the interface of two materials. The flow charge rate at Al-TiO2 is increased by increasing coupling strength and decreasing transition energy.

View Publication

(3)

(2)

1 2 3 4 ... 2761 2762 2763 2764