Estimation of the Stiffness of Asphalt Mastics Using Hirsch Model

2007 ◽  
Author(s):  
Cristian Druta ◽  
Linbing Wang ◽  
George Z. Voyiadjis ◽  
Chris Abadie
Keyword(s):  
Asphalt Mastics

scholarly journals Characterization of Steel Slag Filler and Its Effect on Aging Resistance of Asphalt Mastic with Various Aging Methods

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 869
Author(s):  
Minghua Wei ◽  
Shaopeng Wu ◽  
Haiqin Xu ◽  
Hechuan Li ◽  
Chao Yang
Keyword(s):  
Particle Size ◽  
Surface Characterization ◽  
Steel Slag ◽  
Self Healing ◽  
Limestone Filler ◽  
Asphalt Mastic ◽  
Pore Characterization ◽  
Asphalt Mastics ◽  
Healing Property

Steel slag is the by-product of the steelmaking industry, the negative influences of which prompt more investigation into the recycling methods of steel slag. The purpose of this study is to characterize steel slag filler and study its feasibility of replacing limestone filler in asphalt concrete by evaluating the resistance of asphalt mastic under various aging methods. Firstly, steel slag filler, limestone filler, virgin asphalt, steel slag filler asphalt mastic and limestone filler asphalt mastic were prepared. Subsequently, particle size distribution, surface characterization and pore characterization of the fillers were evaluated. Finally, rheological property, self-healing property and chemical functional groups of the asphalt mastics with various aging methods were tested via dynamic shear rheometer and Fourier transform infrared spectrometer. The results show that there are similar particle size distributions, however, different surface characterization and pore characterization in the fillers. The analysis to asphalt mastics demonstrates how the addition of steel slag filler contributes to the resistance of asphalt mastic under the environment of acid and alkaline but is harmful under UV radiation especially. In addition, the pore structure in steel slag filler should be a potential explanation for the changing resistance of the asphalt mastics. In conclusion, steel slag filler is suggested to replace limestone filler under the environment of acid and alkaline, and environmental factor should be taken into consideration when steel slag filler is applied to replace natural fillers in asphalt mastic.

Verifying laboratory measurement of the performance of hot asphalt mastics containing plastic waste

Measurement ◽  
2021 ◽  
pp. 109587
Author(s):  
Rosa Veropalumbo ◽  
Francesca Russo ◽  
Cristina Oreto ◽  
Salvatore Antonio Biancardo ◽  
Weibin Zhang ◽  
...  
Keyword(s):  
Plastic Waste ◽  
Laboratory Measurement ◽  
Asphalt Mastics

Modelling of Flow Properties of Asphalt Mastics

2013 ◽  
Vol 752 ◽  
pp. 209-216 ◽  
Author(s):  
Róbert Géber ◽  
László A. Gömze
Keyword(s):  
Research Work ◽  
Road Construction ◽  
Test Results ◽  
Flow Properties ◽  
Rheological Models ◽  
Fine Grained ◽  
Mineral Particles ◽  
Asphalt Mastics ◽  
Rheological Modelling ◽  
Mineral Fillers

The present research work deals with the examination and rheological modelling of flow properties of asphalt mastics which are the most important components of asphalt concretes. Asphalt mastics are mixtures of fine grained mineral filler particles (d<0,063 mm) and bitumen, having a stabilizing role in asphalt mixtures and largely determining the cohesion between mineral particles and bitumen. During our examinations two types of mineral fillers – limestone and dolomite – as well as standard bitumen were tested, which are extensively used in Hungarian road construction. Asphalt mastic mixtures were prepared out of these materials and they were tested with dynamic shear rheometer (DSR). According to the test results, rheological models of mastics were determined. It has been established that at different test temperatures and shear rate ranges asphalt mastics behave as Herschel-Bulkley and Bingham-type materials.

scholarly journals Microstructural and rheological analysis of fillers and asphalt mastics

2017 ◽  
Vol 790 ◽  
pp. 012009 ◽  
Author(s):  
R Geber ◽  
A Simon ◽  
I Kocserha ◽  
A Buzimov
Keyword(s):  
Rheological Analysis ◽  
Asphalt Mastics

Effect of Using Cement Reactive Powders on Rheological Performance of Asphalt Mastics

2021 ◽  
Author(s):  
Behrouz Farahi ◽  
Clayton Cloutier ◽  
Konstantin Sobolev ◽  
Ahmed Faheem ◽  
Steven Kosmtaka ◽  
...  
Keyword(s):  
Asphalt Mastics ◽  
Rheological Performance

Fractional viscoelastic modeling of modified asphalt mastics using response surface method

2022 ◽  
Vol 317 ◽  
pp. 125958
Author(s):  
Pouria Hajikarimi ◽  
Mehrdad Ehsani ◽  
Yassine EL Haloui ◽  
Fateh Fakhari Tehrani ◽  
Joseph Absi ◽  
...  
Keyword(s):  
Response Surface ◽  
Response Surface Method ◽  
Modified Asphalt ◽  
Surface Method ◽  
Asphalt Mastics ◽  
Viscoelastic Modeling

scholarly journals Effect of Graphene Nanoplatelets (GNPs) on Fatigue Properties of Asphalt Mastics

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4864
Author(s):  
Ke Li ◽  
Haisheng Ren ◽  
Weirong Huang
Keyword(s):  
Growth Rate ◽  
Fatigue Life ◽  
Graphene Nanoplatelets ◽  
Fatigue Properties ◽  
Modified Asphalt ◽  
Good Linear ◽  
Asphalt Mastics ◽  
Time Sweep ◽  
Time Sweep Test ◽  
Good Linear Correlation

To investigate the effect of graphene on the fatigue properties of base asphalt mastics, graphene nanoplatelets (GNPs)-modified asphalt mastics and base asphalt mastics were prepared. A dynamic shear rheometer (DSR) was used to conduct the tests in the stress-controlled mode of a time-sweep test. The results showed that GNPs can improve the fatigue life of asphalt mastic. Under a stress of 0.15 MPa, the average fatigue life growth rate (ω¯) was 17.7% at a filler-asphalt ratio of 0.8, 35.4% at 1.0, and 45.2% at 1.2; under a stress of 0.2 MPa, the average fatigue life growth rate (ω¯) was 17.9% at a filler-asphalt ratio of 0.8, 25.6% at 1.0, and 38.2% at 1.2. The growth value (ΔT) of fatigue life of GNPs-modified asphalt mastics increased correspondingly with the increase of filler–asphalt ratio, the correlation coefficient R2 was greater than 0.95, and the growth amount showed a good linear relationship with the filler–asphalt ratio. In the range of 0.8~1.2 filler–asphalt ratio, the increase of mineral powder can improve the fatigue life of asphalt mastics, and there is a good linear correlation between filler–asphalt ratio and fatigue life. The anti-fatigue mechanism of GNPs lies in the interaction between GNPs and asphalt, as well as its own lubricity and thermal conductivity.

Sustainable asphalt mastics made up recycling waste as filler

2022 ◽  
Vol 301 ◽  
pp. 113826
Author(s):  
Francesca Russo ◽  
Rosa Veropalumbo ◽  
Ludovico Pontoni ◽  
Cristina Oreto ◽  
Salvatore Antonio Biancardo ◽  
...  
Keyword(s):  
Asphalt Mastics
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