Preparation of a novel flow improver and its viscosity-reducing effect on bitumen

Li, Rui; Wang, Chengchao; Wang, Pengzhi; Pei, Jianzhong

doi:10.1016/j.fuel.2016.05.028

Cited by 59 publications

(19 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Consequently, the viscosity of the asphalt was reduced. [43][44][45] The above results are further conrmed by high resolution XPS spectra of C1s and O1s of asphalts ( Fig. 10 and 11).…”

Section: Roles Of Formic Acids On Asphalt Viscosity Reductionmentioning

confidence: 90%

Recovery of extra-heavy oil and minerals from carbonate asphalt rocks by reactive extraction

Bian

Wang

et al. 2019

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Consequently, the viscosity of the asphalt was reduced. [43][44][45] The above results are further conrmed by high resolution XPS spectra of C1s and O1s of asphalts ( Fig. 10 and 11).…”

Section: Roles Of Formic Acids On Asphalt Viscosity Reductionmentioning

confidence: 90%

Recovery of extra-heavy oil and minerals from carbonate asphalt rocks by reactive extraction

Bian

Wang

et al. 2019

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Asphalt Rubber (AR) generally refers to the mixture containing crumb rubber (CR), which is obtained by grinding the recycled crumbs of tires with base asphalt [1]. Compared to just the base asphalt, AR not only has better resistance to high-temperature permanent deformation, low-temperature deformability, anti-ageing and anti-fatigue properties [2][3][4][5][6][7][8], but has an obvious noise reduction property due to CR's high damping property [9]. So, if AR could be used worldwide, it not only could act as a way to improve the performance of pavement, but it could be a solution to recycle the great number of waste tires, providing high returns including both environmental protection and financial aspects.…”

Section: Introductionmentioning

confidence: 99%

Study on the Effect of Microwave Processing on Asphalt-Rubber

Liu

Pei

et al. 2020

Materials

Self Cite

View full text Add to dashboard Cite

The addition of crumb rubber (CR) into base asphalt plays a critical role in the improvement of the performance of Asphalt-Rubber (AR) binders. However, due to the problems, like high constructing temperature and energy consumption brought by the additional rubber, the use of AR binders could be limited in some areas. During this study, CR is processed by microwave is adopted to reduce the viscosity of the AR binders system, while the CR processed by long screw extrusion also is studied. First, the swelling (the absorption of light component into the CR particle) and dissolution (some molecules of CR dissolving into the base asphalt), both of which determine the improved performance of AR binders, are investigated by fluorescence microscopy and extraction tests. The size of the CR particle after swelling observed by fluorescence microscopy is used to evaluate the swelling rate of CR samples, and the ratio of the weight loss of CR samples after extraction to the original weight is employed to measure the dissolution rate. Then, Brookfield rotational viscometer and storage stability tests are conducted. Last, the rheologic performance, including high and low-temperature performances, is characterized by the dynamic shear rheometer (DSR) and bending beam rheometer (BBR), respectively. The fluorescence microscopy and extraction results show that microwave processing could effectively increase the swelling and dissolving rate, with the figures rising twofold and more than threefold, respectively. The results show that microwave processing could effectively reduce the viscosity of AR binders, with a viscosity decrease of 65% at 190 °C and, at the same time, the high temperature of Performance Grade (PG) decrease from 88 °C to 76 °C. The storage stability could be negatively impacted, but it is slight and the low-temperature performance is improved slightly.

show abstract

“…For example, the asphalt binder modified by nano silica and pretreated rubber, could have very close penetration and soften point values to SBS modified asphalt binder, while actually have quiet different viscoelastic behavior (Han et al 2017). Viscosity reflects the fluid's resistance to motion and has been used to evaluate the comprehensive performance of asphalt binder for long (Akisetty et al 2009;Hesami et al 2012;Li et al 2016). Experiments methods such as Brookfield rotational viscometer, kinematic viscosity, and vacuum capillary viscometer have been developed to evaluate the apparent viscosity, kinematic viscosity, and dynamic viscosity of asphalt binder respectively, and the results can reflect the high-temperature performance of asphalt binder indirectly (Akisetty et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Investigation on high-temperature performance of waste-based high-viscosity asphalt binders (WHABs) by repeated creep recovery (RCR) test

Cai

Wang

et al. 2019

Can. J. Civ. Eng.

Self Cite

View full text Add to dashboard Cite

This study reviewed and compared the test methods for the high-temperature performance of asphalt binder, and selected repeated creep recovery (RCR) test to evaluate the high-temperature performance of three waste-based high-viscosity asphalt binders (WHABs, including D-I, D-II, and F) and a control sample (Tafpack-Super modified asphalt, TMA). Meanwhile, shear stress, test temperature, and aging degree of binders, which could influence high-temperature behavior of binders, were also investigated, and related evaluation indexes including recovery compliance (R), non-recoverable creep compliance (Jnr), and viscous stiffness modulus (Gv) were compared. Results show that WHABs has much better high-temperature performance than TMA; shear stress has the most prominent effect on binders’ high-temperature performance, followed by aging degree, and lastly the selected test temperature in γ–time curve results; R, Jnr, and Gv values results indicate aging degree has a significant effect on binders, and improving binders’ aging performance can greatly improve the high-temperature performance.

show abstract

Preparation of a novel flow improver and its viscosity-reducing effect on bitumen

Cited by 59 publications

References 7 publications

Recovery of extra-heavy oil and minerals from carbonate asphalt rocks by reactive extraction

Recovery of extra-heavy oil and minerals from carbonate asphalt rocks by reactive extraction

Study on the Effect of Microwave Processing on Asphalt-Rubber

Investigation on high-temperature performance of waste-based high-viscosity asphalt binders (WHABs) by repeated creep recovery (RCR) test

Contact Info

Product

Resources

About