Rheological properties of asphalt modified by supramolecular UV resistant material-LDHs

Abstract

Dynamic rheological properties of asphalt modified by Supramolecular UV resistant material—layered double hydroxides(LDHs) was studied by means of the dynamic shear rheometer (DSR) test. Two typical base asphalts were chosen and modifi ed by 2 different LDHs contents. DSR tests were performed on the original samples, samples after exposed to outdoor and samples after the artifi cial accelerated UV aging tests respectively to analyze the rheological properties. It is found that when the LDHs content is between 3wt% and 5wt% of asphalt weight, the high temperature performance and fatigue resistant property of the modifi ed asphalt become better, the UV aging resistance properties are improved.

Keywords

LDHs modified asphalt; UV aging; dynamic rheological properties

References

[1] Zhang Deqin. Petroleum Asphalt Production and Application[M], 2001 Beijing China Petrochemical Press

[2] Françoise D., Fabienne F., Virginie Mouillet. The Influence of UV Aging of a Styrene/Butadiene/Styrene Modifi ed Asphalt Comparison between Laboratory and on Site Aging[J]. Fuel, 2007, 86(10–11): 1 446-1 451.

[3] Palit S.K., Sudhakar Reddy K., Pandev B.B. Laboratory Evaluation of Cru mb Rubber Modifi ed Asphalt Mixes[J]. Journal of Materials in Civil Engineering, 2004, 16(1): 45-53.

[4] Polaccoa G., Stastnab J., Biondia D., . Rheology of Asphalt Modifi ed with Glycidymethacrylate Functionalized Polymers [J]. Journal of Colloid and Interface Science, 2004, 280: 366-373.

[5] Mouillet V., Farcas F., Besson S. Aging by UV Radiation of an Elastomer Modifi ed Bitumen[J]. Fuel, 2008, 87: 2 408-2 419.

[6] Soon-Jae L., Akisetty C. K., N Amirkhanian S. Recycling of Laboratory-prepared Long-term Aged Binders Containing Crumb Rubber Modifi er [J]. Construction and Building Materials, 2008, 22: 19061913

[7] Guo G., Yang D., Xiong Y., . Study on Optical Properties and Application in Polypropylene Aging Resistance of Nano-TiO₂ and Nano-ZnO[J]. Function Materials, 2004, 35: 83-86.

[8] Xing Yin. Assembly and Structural Characteristics of Supramolecular UV Absorbents Based on Layered Double Hydroxides[D], 2003 Beijing Beijing University of Chemical Technology

[9] César AS Barbosa, Patrícia M Dias, Ana Maria da C Ferreira, et al. Mg-Al hydrotalcite-like Compounds Containing Iron-phthalocyanine Complex: Effect of Aluminum Substitution on the Complex Adsorption Features and Catalytic Activity [J]. Applied Clay Science, 2005, 28 147-158

[10] Mouillet V., Lamontagne J., Durrieu F., Planche J.-P., Lapalu L. Infrared Microscopy Investigation of Oxidation and Phase Evolution in Bitumen Modifi ed with Polymers[J]. Fuel, 2008, 87: 1270-1280.

[11] Sengoz B., Isikyakar G. Analysis of Styrene-butadienestyrene Polymer Modified Bitumen Using Fluorescent Microscopy and Conventional Test Methods[J]. Journal of Hazardous Materials, 2008, 150: 424-432.

[12] Zare-Shahabadi A., Shokuhfar A., Ebrahimi-Nejad S. Preparation and Rheological Characterization of Asphalt Binders Reinforced with Layered Silicate Nanoparticles [J]. Construction and Building Materials, 2010, 24: 1 239-1 244.

[13] Valtorta D., Poulikakos L.D., Partl M.N., Mazza E. Rheological Properties of Polymer Modified Bitumen from Long-term Field Tests[J]. Fuel, 2007, 86: 938-948.

[14] Zhong Y., Li Mingliang. Dynamic Shear Rheometer Test of Asphalt Rubber[J]. Petroluem Asphalt, 2009, 23(1): 18-21.