scholarly journals Preparation and the Effect of Surface-Functionalized Calcium Carbonate Nanoparticles on Asphalt Binder

2019 ◽  
Vol 10 (1) ◽  
pp. 91 ◽  
Author(s):  
Chenchen Shen ◽  
Rui Li ◽  
Jianzhong Pei ◽  
Jun Cai ◽  
Tao Liu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Calcium Carbonate ◽  
Low Temperature ◽  
Asphalt Binder ◽  
Asphalt Binders ◽  
Test Results ◽  
Negative Effects ◽  
Excellent Thermal Stability ◽  
Temperature Performance ◽  
Modified Asphalt Binder

To solve the nanoparticles (NPs) agglomeration phenomena of nanometer calcium carbonate (nano-CaCO3) modified asphalt binder, in this paper, solvent-free CaCO3 nanofluids (NFs) were prepared based on surface-functionalized CaCO3 NPs to study the effect on asphalt. Microscopic structures, compositions, and thermal stability were characterized by Fourier transform infrared spectrometer (FTIR), X-ray diffractometer (XRD), transmission electron microscope (TEM), and thermogravimetric analyzer (TGA), respectively. Results showed that perfect CaCO3 NFs were successfully prepared, and were good enough for asphalt mixing due to their excellent thermal stability. Scanning electron microscopy (SEM), conventional tests, dynamic shear rheometry (DSR), and bending beam rheometry (BBR) were conducted to investigate the modifying effect. The SEM results indicated that CaCO3 NFs had better compatibility with asphalt binder than original CaCO3 NPs. Conventional and DSR test results demonstrated that CaCO3 NFs had slight negative effects on high-temperature performance while improving the low-temperature performance of the asphalt binder. The BBR test results confirmed that the modifier addition effectively enhanced asphalt binders’ low-temperature crack resistance performance.

scholarly journals Impact of Graphene Oxide on Zero Shear Viscosity, Fatigue Life and Low-Temperature Properties of Asphalt Binder

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3073
Author(s):  
Abbas Mukhtar Adnan ◽  
Chaofeng Lü ◽  
Xue Luo ◽  
Jinchang Wang
Keyword(s):  
Graphene Oxide ◽  
Fatigue Life ◽  
Low Temperature ◽  
Shear Viscosity ◽  
Storage Stability ◽  
Asphalt Binder ◽  
Asphalt Binders ◽  
Test Results ◽  
Zero Shear Viscosity ◽  
Modified Asphalt

This study has investigated the impact of graphene oxide (GO) in enhancing the performance properties of an asphalt binder. The control asphalt binder (60/70 PEN) was blended with GO in contents of 0%, 0.5%, 1%, 1.5%, 2%, and 2.5%. The permanent deformation behavior of the modified asphalt binders was evaluated based on the zero shear viscosity (ZSV) parameter through a steady shear test approach. Superpave fatigue test and the linear amplitude sweep (LAS) method were used to evaluate the fatigue behavior of the binders. A bending beam rheometer (BBR) test was conducted to evaluate the low-temperature cracking behavior. Furthermore, the storage stability of the binders was investigated using a separation test. The results of the ZSV test showed that GO considerably enhanced the steady shear viscosity and ZSV value, showing a significant contribution of the GO to the deformation resistance; moreover, GO modification changed the asphalt binder’s behavior from Newtonian to shear-thinning flow. A notable improvement in fatigue life was observed with the addition of GO to the binder based on the LAS test results and Superpave fatigue parameter. The BBR test results revealed that compared to the control asphalt, the GO-modified binders showed lower creep stiffness (S) and higher creep rate (m-value), indicating increased cracking resistance at low temperatures. Finally, the GO-modified asphalt binders exhibited good storage stability under high temperatures.

scholarly journals Effect of Recycled Shell Waste as a Modifier on the High- and Low-Temperature Rheological Properties of Asphalt

2021 ◽  
Vol 13 (18) ◽  
pp. 10271
Author(s):  
Yuchen Guo ◽  
Xuancang Wang ◽  
Guanyu Ji ◽  
Yi Zhang ◽  
Hao Su ◽  
...  
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Rheological Properties ◽  
Low Temperatures ◽  
High Speed ◽  
Permanent Deformation ◽  
Asphalt Binder ◽  
Asphalt Binders ◽  
Modified Asphalt ◽  
Temperature Performance

The deteriorating ecological environment and the concept of sustainable development have highlighted the importance of waste reuse. This article investigates the performance changes resulting from the incorporation of shellac into asphalt binders. Seashell powder-modified asphalt was prepared with 5%, 10%, and 15% admixture using the high-speed shear method. The microstructure of the seashell powder was observed by scanning electron microscope test (SEM); the physical-phase analysis of the seashell powder was carried out using an X-ray diffraction (XRD) test; the surface characteristics and pore structure of shellac were analyzed by the specific surface area Brunauer-Emmett-Teller (BET) test; and Fourier infrared spectroscopy (FTIR) qualitatively analyzed the composition and changes of functional groups of seashell powder-modified asphalt. The conventional performance index of seashell powder asphalt was analyzed by penetration, softening point, and ductility (5 °C) tests; the effect of seashell powder on asphalt binder was studied using a dynamic shear rheometer (DSR) and bending beam rheometer (BBR) at high and low temperatures, respectively. The results indicate the following: seashell powder is a coarse, porous, and angular CaCO3 bio-material; seashell powder and the asphalt binder represent a stable physical mixture of modified properties; seashell powder improves the consistency, hardness, and high-temperature performance of the asphalt binder but weakens the low-temperature performance of it; seashell powder enhances the elasticity, recovery performance, and permanent deformation resistance of asphalt binders and improves high-temperature rheological properties; finally, seashell powder has a minimal effect on the crack resistance of asphalt binders at very low temperatures. In summary, the use of waste seashells for recycling as bio-modifiers for asphalt binders is a practical approach.

Low-Temperature Performance of Toner-Modified Asphalt Binder

2019 ◽  
Vol 145 (3) ◽  
pp. 04019022 ◽  
Author(s):  
Mohammad Ali Notani ◽  
Fereidoon Moghadas Nejad ◽  
Ellie H. Fini ◽  
Pouria Hajikarimi
Keyword(s):  
Low Temperature ◽  
Asphalt Binder ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Modified Asphalt Binder ◽  
Low Temperature Performance

Experimental Study on Polyphosphoric Acid (PPA) Modified Asphalt Binders

2010 ◽  
Vol 152-153 ◽  
pp. 288-294 ◽  
Author(s):  
Wei Dong Cao ◽  
Shu Tang Liu ◽  
Hong Lu Mao
Keyword(s):  
Low Temperature ◽  
Softening Point ◽  
Asphalt Binder ◽  
Asphalt Binders ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Point Test ◽  
Low Temperature Performance ◽  
Four Levels ◽  
Temperature Susceptibility

Polyphosphric acid (PPA) modified asphalt binders were produced in the laboratory using one base asphalt and four levels of PPA contents (0.6%, 1.0%, 1.5% and 2.0% by weight of base asphalt). Penetration test, softening point test, rotation viscosity test, creep test with bending beam rheometer (BBR) and four components test were carried out to study the performance of PPA modified asphalt binders and possible modification mechanism. The results indicate that the high-temperature performance of PPA modified asphalt binders are obviously improved and temperature susceptibility are decreased, but the low-temperature performance slightly decline compared with base asphalt. The PPA content has a very significant effect on softening point whereas it has no significant influence on low-temperature performance according to variance analysis (ANOVA). Finally, four components test reveals that the primary modification mechanism of PPA is the change of chemical composition of asphalt binder.

scholarly journals Mechanics and Pavement Properties Research of Nanomaterial Modified Asphalt

2012 ◽  
Vol 5 ◽  
pp. 259-264 ◽  
Author(s):  
Shang Jiang Chen ◽  
Xiao Ning Zhang
Keyword(s):  
Low Temperature ◽  
Resilient Modulus ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Test Results ◽  
Modified Asphalt ◽  
Cleavage Strength ◽  
Modified Asphalt Binder ◽  
Powdered Rubber ◽  
Temperature Crack

Nanomaterials (nano powdered rubber VP401, VP501 and sepiolite and CaCo3 composites) were selected to improve the high-temperature and low-temperature performance of asphalt binder. Nanomaterial modified asphalt was prepared using the high shear machine. Laboratory experiments of asphalt binder and asphalt mixture were conducted to evaluate the properties of modified asphalt binder, including the penetration, ductility, softening point, viscosity, and etc. Also, asphalt mixture tests were carried out, such as the cleavage strength test, resilient modulus test, rutting test, water stability test and etc. Based on the test results, asphalt binder modified by 1% nano powdered rubber VP401 has better performance resistance to low temperature crack and rutting, compared to other nanomaterial modified asphalt binder.

scholarly journals Evaluation of Low- and Intermediate-Temperature Performance of Bio Oil-Modified Asphalt Binders

2021 ◽  
Vol 13 (7) ◽  
pp. 4039
Author(s):  
Sara A. Alattieh ◽  
Ghazi G. Al-Khateeb ◽  
Waleed Zeiada
Keyword(s):  
Low Temperature ◽  
Asphalt Binder ◽  
Fatigue Cracking ◽  
Asphalt Binders ◽  
Tensile Stresses ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Bio Oil ◽  
Low Temperature Cracking ◽  
Low Temperature Performance

Fatigue cracking and low-temperature cracking are two major distresses that occur in asphalt pavements. Fatigue cracking is a load-associated distress caused by the tensile stresses at the bottom/top of the asphalt concrete (AC) layer due to repeated traffic loading. On the other hand, low-temperature cracking occurs when tensile stresses built up with in the AC layer at low temperatures exceed the tensile strength of that layer. In this study, the performance of date seeds oil bio-modified asphalt binders (DSO-BMB) is evaluated against fatigue and low-temperature cracking. The DSO-BMBs are prepared using volume ratios of 1.5, 2.5, 3.5, 4.5, and 5.5% date seeds oil-to-asphalt binder. The base asphalt binder used in the study is a 60/70-penetration grade with a Superpave performance grade (PG) of PG 64–16. The dynamic shear rheometer (DSR) standard test was used to assess the fatigue performance of the bio-modified binders (BMBs), while the bending beam rheometer (BBR) test was used to test the BMBs for low-temperature performance. In addition, the DSR linear amplitude sweep (LAS) test was used to evaluate the fatigue tolerance behavior of the DSO-BMBs. The analysis and results of the study showed that the bio-oil enhanced the low-temperature performance. The low PG grade improved from −16 °C for the control asphalt binder to −28 °C for the BMB. Additionally, the fatigue resistance of the BMBs was improved as illustrated by the damage–characteristic curves of the modified asphalt binders from the visco-elastic continuum damage (VECD) analysis and the increase in the number of cycles to fatigue failure (Nf).

scholarly journals Studying the Properties of SBS/Rice Husk Ash-Modified Asphalt Binder and Mixture

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Zhen Lu ◽  
Aimin Sha ◽  
Wentong Wang ◽  
Junfeng Gao
Keyword(s):  
Low Temperature ◽  
Rice Husk ◽  
Softening Point ◽  
Rice Husk Ash ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Modified Asphalt Binder ◽  
Rotational Viscosity

Sustainable materials in the field of road pavement have become a research direction in recent years. In this study, the rice husk ash with small dosage of styrene-butadiene-styrene (SBS) was added as a bioadditive into the base asphalt to modify its properties. Different contents (0, 2, 5, 10, and 15%) of rice husk ash (RHA) and 1% of SBS were selected to prepare the modified asphalt. Penetration, softening point, ductility, rotational viscosity test, and temperature sweep test were conducted to investigate the properties of SBS/RHA-modified asphalt binder. Rutting test, moisture susceptibility, and low-temperature cracking were utilized to evaluate the performances of SBS/RHA-modified asphalt mixture. The results showed that the penetration decreased and the softening point and rotational viscosity enhanced while the ductility slightly decreased with the incorporation of rice husk ash. The SBS/RHA-modified asphalt mixture had better high-temperature performance than that of the virgin asphalt mixture but slightly lower moisture stability and low temperature performance. The tensile strength ratio of the virgin and modified asphalt mixture met the requirement of specification. The tensile strain of mixture SR15 was lower than the requirement for the asphalt mixtures on the basis of the specification. For the SBS/RHA-modified asphalt binder based on the comprehensive properties, the content of rice husk ash should not be higher than 15%.

Field Validation of New Superpave Low-Temperature Binder Specification Procedure: Performance Data from Pennsylvania Test Sections

2000 ◽  
Vol 1728 (1) ◽  
pp. 60-67 ◽  
Author(s):  
Raj Dongré ◽  
Mark G. Bouldin ◽  
Dean A. Maurer
Keyword(s):  
Low Temperature ◽  
Asphalt Binder ◽  
Asphalt Binders ◽  
Direct Tension ◽  
Transverse Cracking ◽  
Performance Grade ◽  
Temperature Performance ◽  
Test Road ◽  
Low Temperature Performance ◽  
And Performance

A new specification procedure was proposed recently to determine the low-temperature performance grade of asphalt binders. This new procedure uses bending beam rheometer (BBR) and direct tension test (DTT) data at two temperatures to determine the low-temperature grade of an asphalt binder. A study was conducted to validate this procedure by using asphalt binder retained samples from the widely published test road in Pennsylvania. This road was constructed in 1976 in Elk County, and performance—including low-temperature transverse cracking index—was monitored over 6 years. In this study, the retained binder samples from test sections T-1 to T-6 were tested with the BBR and the new Superpave® DTT. The data from these two tests were analyzed to obtain critical cracking temperatures and low-temperature performance grades. Results indicate that the new procedure correctly predicts the temperature at which cracking was observed in the field.

scholarly journals A Compressive Review on High- and Low-Temperature Performance of Asphalt Modified with Nanomodifier

2021 ◽  
Vol 2021 ◽  
pp. 1-19
Author(s):  
Limin Li ◽  
Lingming Yang ◽  
Yuliang Lin ◽  
Xiancai Zhang
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Binder ◽  
Systematic Investigation ◽  
Nanoparticle Size ◽  
Asphalt Binders ◽  
Temperature Performance ◽  
Low Temperature Performance ◽  
The Difference ◽  
Low Performance

At present, rutting and cracking have become serious issues in asphalt pavement, especially in the areas of summer heat and winter cold. Nanomodifier has been widely used in recent years due to its unique properties in improving the characteristics of asphalt binders. To make better use of nanomodifier to solve the problem of rutting and cracking of pavement, a compressive review on the high- and low-temperature performance of nanomodified asphalt is performed. The results indicate that for high- and low-temperature performance of asphalt binder, the effectiveness of nanomodification is found to be strictly influenced by the combination of original asphalt type, nanomodifier type, nanomodifier dosage, nanoparticle size, and preparation of nanomodified asphalt, and the high-temperature antirutting performance and low-temperature crack resistance of final blends are various with the combination. Chemical composition, microstructure, dispersion, and compatibility of final blends were the possible reason causing the difference. The rational selection of the combination can improve the high-temperature rutting resistance and the low-temperature cracking resistance of asphalt binder. So far, there is a lack of systematic investigation in this regard. Therefore, it is very necessary to study systematically the original asphalt, nanomodifier, nanomodifier dosage, nanoparticle size, and preparation of nanomodified asphalt effect on the high and low performance of nanomodified asphalt, especially in the modification mechanism in the future.

Performance of Nanomodified Asphalt Binder and Mixture

2013 ◽  
Vol 721 ◽  
pp. 219-223
Author(s):  
Bang Yan Tang ◽  
Hui Yao ◽  
Yu Feng ◽  
Xu Dong Hu
Keyword(s):  
Resilient Modulus ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Asphalt Binders ◽  
Test Results ◽  
Modified Asphalt ◽  
Cleavage Strength ◽  
Modified Asphalt Binder ◽  
Overall Performance ◽  
Water Susceptibility

The nanopowdered VP108 was selected and applied into the base asphalt binder and mixture. The Marshall binder and mixture tests were conducted to evaluate the mechanical and pavement performance of base and VP108 modified asphalt binders and mixtures. The test results present that the penetration, softening point, penetration index and ductility of VP108 modified asphalt binder improved compared to the base asphalt binder. The mixture test results display that the compression strength, water susceptibility, resilient modulus and cleavage strength of VP108 modified asphalt mixture enhance compared to the base asphalt mixture. Therefore, the overall performance of VP108 modified asphalt binder and mixture improves compared to the base asphalt binder and mixture, such as the high temperature performance, resilient modulus and water resistance property.

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