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

Ahmed Mahir Mohammed; Alaa H. Abed

doi:10.1515/eng-2022-0520

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Publication Date

Mon Jan 01 2024

Journal Name

Open Engineering

Volume

14

Issue Number

1

DOI

10.1515/eng-2022-0520

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

nanomaterial

TiO2

DSR

BBR

asphalt

Ahmed Mahir Mohammed

Alaa H. Abed

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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.

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Publication Date

Sat May 01 2021

Journal Name

Journal Of Physics: Conference Series

The effect of the Doping with Cobalt Transition Metal on the Dielectric and Structural Properties of Fe0.5CoxMg0.95-xO Nanoparticles Synthesized by Sol-Gel Assisted Auto-Combustion

Tagreed M.

Omar A.

Imad H.

T.A.

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AbstractThe compound Fe0.5CoxMg0.95-xO where (x= 0.025, 0.05, 0.075, 0.1) was prepared via the sol-gel technique. The crystalline nature of magnesium oxide was studied by X-ray powder diffraction (XRD) analysis, and the size of the sample crystals, ranging between (16.91-19.62nm), increased, while the lattice constant within the band (0.5337-0.4738 nm) decreased with increasing the cobalt concentration. The morphology of the specimens was studied by scanning electron microscopy (SEM) which shows images forming spherical granules in addition to the presence of interconnected chips. The presence of the elements involved in the super ... Show More

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(1)

Publication Date

Sun Dec 30 2012

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Prediction of The Chemical Composition and Physical properties of Aged Asphalt Cement

chemical composition of asphalt

physical properties of asphalt

asphalt properties

and durability of asphalt

Abdul- Halim

Khalid

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In the present work a modification was made on three equations to represent the
experiment data which results for Iraqi petroleum and natural asphalt. The equations
have been developed for estimating the chemical composition and physical properties
of asphalt cement at different temperature and aging time. The standard deviations of
all equations were calculated.
The modified correlation related to the aging time and temperature with penetration
index and durability index of aged petroleum and natural asphalts were developed.
The first equation represents the relationship between the durability index with aging
time and temperature.

log_e(DI)=a₁+0.0123(2log_eT

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Publication Date

Sun Jan 01 2012

Journal Name

Natural Science

Determination of threshold random gain medium in dye: Polymer films containing TiO&lt;sub&gt;2&lt;/sub&gt; nanoparticles

Baha T.

Mohammed A.

Firas J.

Kamil H.

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Publication Date

Mon Mar 18 2019

Journal Name

Baghdad Science Journal

Enhancement of hydrothermally Co 3 O 4 thin films as H 2 S gas sensor by loading yttrium element

Oxide

H2S

Gas sensors

Sensitivity

Yttrium

Suhad A.

Iftikhar M.

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The gas sensing properties of Co3O4and Co3O4:Y nano structures were investigated. The films were synthesized using the hydrothermal method on a seeded layer. The XRD, SEM analysis and gas sensing properties were investigated for Co3O4and Co3O4:Y thin films. XRD analysis shows that all films are polycrystalline in nature, having a cubic structure, and the crystallite size is (11.7)nm for cobalt oxide and (9.3)nm for the Co3O4:10%Y. The SEM analysis of thin films obviously indicates that Co3O4possesses a nanosphere-like structure and a flower-like structure for Co3O4:Y.The sensitivity, response time and recovery time to a H2S reducing gas were tested at different operating

Publication Date

Sun May 01 2022

Journal Name

Journal Of Ecological Engineering

Ability of Response Surface Methodology to Optimize Photocatalytic Degradation of Amoxicillin from Aqueous Solutions Using Immobilized TiO2/Sand

Abeer I.

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(13)

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Publication Date

Sun Nov 01 2020

Journal Name

Iop Conference Series: Materials Science And Engineering

Thermophysical properties of [EMIM][BF4] and [HMIM][PF6] imidazolium ionic liquids with MWCNTs

[EMIM][BF4]

[HMIM][PF6]

imidazolium ionic liquids

MWCNTs

Huda Majid

Basma A.

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AbstractIn this study, several ionanofluids (INFs) were prepared in order to study their efficiency as a cooling medium at 25 °C. The two-step technique is used to prepare ionanofluid (INF) by dispersing multi-walled carbon nanotubes (MWCNTs) in two concentrations 0.5 and 1 wt% in ionic liquid (IL). Two types of ionic liquids (ILs) were used: hydrophilic represented by 1-ethyl-3-methylimidazolium tetrafluoroborate [EMIM][BF4] and hydrophobic represented by 1-hexyl-3-methylimidazolium hexafluorophosphate [HMIM][PF6]. The thermophysical properties of the prepared INFs including thermal conductivity (TC), density and viscosity were measured experimental ... Show More

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Publication Date

Tue Jan 01 2019

Journal Name

Advances In Materials Physics And Chemistry

The Role of Cooling Condition on the Superconducting Properties of Tl&lt;sub&gt;2-x&lt;/sub&gt;Hg&lt;sub&gt;x&lt;/sub&gt;Sr&lt;sub&gt;2&lt;/sub&gt;Ca&lt;sub&gt;2&lt;/sub&gt;Cu&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;10+δ&lt;/sub&gt; System

Amal K.

M. F. A.

Matti N.

...Show More Authors

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Publication Date

Sun Nov 10 2019

Journal Name

Journal Of Engineering And Applied Sciences

Fabrication and Properties of Ag2O/Si Heterojunction Solar Cell Pure and Doped (Sb, Sn and Se)

Bushra

Kadhim

Tagreed

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Publication Date

Tue Oct 01 2024

Journal Name

Journal Of Physics: Conference Series

An investigation into the implications of partial substitution of selenium with lead on the thermal properties for S60Se40-XPbX Chalcogenide Compound

Engineering controlled terms Electric arc furnaces

Glass manufacture

Lead alloys

Melting point

Selenium compounds Engineering uncontrolled terms 950° C

Chalcogenide compound

Melting point method

Partial substitution

Property

Quartz ampoule

Quartz tubes

Rapid cooling

Thermal

Weight ratios Engineering main heading Heat flux

Kareem

Mohamed

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AbstractThis study includes the manufacture of four ternary alloys represented S60Se40-XPbX with weight ratios x = 0, 10, 20, and 30 by the melting point method. The components of each alloy were mixed separately, then placed in quartz ampoules and vacuumed out with a vacuum of roger that 10−4 Torr. The ampule was heated in two stages to avoid sudden dissipation and precipitation of selenium on the inner mass of the quartz tube. The ampoule was gradually heated and kept at 450°C for approximately 4 hours followed by 950°C for 10 hours.at a rate of 10 degrees Celsius, the temperature of the electric furnace ... Show More

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Publication Date

Mon Nov 01 2021

Journal Name

Journal Of Physics: Conference Series

Neural Network Model for Synthesis of Thermally Sprayed (AI/AI2O3) Composite Protective Coatings

Thamir Abdul-Jabbar

Saad Ali

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AbstractAl2O3 and Al2O3–Al composite coatings were deposited on steel specimens using Oxy-acetylene gas thermal spray gun. Alumina was mixed with Aluminum in six groups of concentrations (0, 5, 10,12,15 and 20% ) Al2O3, Specimens were tested for corrosion using Potentiodynamic polarization technique. Further tests were conducted for the effect of temperature on polarization curve and the hardness tests for the coated specimens. At first, Modelling was carried out using MINITAB-19, least square method, as a 2nd degree nonlinear model, bad results were achieved because of the high nonlinearity. Better result w ... Show More

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