Results 191 to 200 of about 14,260 (228)

Outdoor aging of road asphalt and SBS modified asphalt

Frontiers of Chemical Science and Engineering, 2010
The process of performance degradation of road asphalt (RA) is regarded as aging. At present, better understanding of the thermal-oxidative aging of asphalt is achieved and the corresponding method to evaluate this process is developed; meanwhile, photo-oxidative aging (aging in an atmospheric environment, which is referred to as “outdoor aging” in ...
Li Xiang, Juan Tu, Jian Cheng, Guohe Que
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Rheology of asphalts modified with glycidylmethacrylate functionalized polymers

Journal of Colloid and Interface Science, 2004
Asphalt is known to be a colloidal suspension in which asphaltenes are covered by a stabilizing phase of polar resins and form complex micelles that are dispersed in the oily maltenic phase. In order to enhance its mechanical properties (e.g., in road paving), asphalts are often loaded with polymeric materials, thereby obtaining blends that can have ...
POLACCO, GIOVANNI, J. STASTNA, D. BIONDI, F. ANTONELLI, Z. VLACHOVICOVA, AND L. ZANZOTTO   +5 more
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Influence of Base Asphalt and SBS Modifier on the Weathering Aging Behaviors of SBS Modified Asphalt

Journal of Materials in Civil Engineering, 2018
AbstractThis work studied the weathering aging behaviors of styrene-butadiene-styrene copolymer (SBS) modified asphalt.
Chongzheng Zhu, Henglong Zhang, Dongmei Zhang, Zihao Chen   +3 more
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Paving Asphalts with Modifying Additives

Chemistry and Technology of Fuels and Oils, 2003
The possibility of increasing the quality of paving asphalts by modifying them with an inexpensive, nontraditional additive — Kashpir slate softener with a significant content of resins and asphaltenes — is demonstrated. In the concentration of under 7 wt.
S. V. Kotov, G. V. Timofeeva, S. V. Levanova, V. A. Yasinenko, L. V. Zinov'eva, Z. R. Madumarova   +5 more
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Thermomechanical behavior of modified asphalts

Industrial & Engineering Chemistry Product Research and Development, 1985
On a etudie les proprietes thermomecaniques de plusieurs bitumes modifies en utilisant des caracteristiques mecaniques dynamiques, des determinations de viscosite, et des mesures de point de ...
Vikas M. Nadkarni, Arun V. Shenoy, Johnson Mathew   +2 more
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Creep Compliance of Polymer-Modified Asphalt, Asphalt Mastic, and Hot-Mix Asphalt

Transportation Research Record: Journal of the Transportation Research Board, 2003
The possibility of using commercial rheometers for comprehensive testing of asphalt binders, asphalt mastics, and hot-mix asphalts (HMA) is explored. Samples of one polymer-modified asphalt, its mix with fine mineral filler (mastic), and one HMA prepared with the same modified asphalt as binders were tested in the dynamic shear rheometer (DSR) and the ...
Ota Vacin, Jiri Stastna, Ludo Zanzotto
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The Compatibility of SBS-Modified Asphalt

Petroleum Science and Technology, 2010
Abstract Compatibilities of six kinds of base asphalts with styrene-butadiene-styrene (SBS) were evaluated by difference of isolation softening points and intrinsic viscosities of six SBS-modified asphalts. By comparing four-component distribution of six kinds of base asphalts with compatibility evaluation results of SBS modified asphalt, ratio of ...
T. Wang, T. Yi, Z. Yuzhen
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Benzoxazine-modified asphalts

The use of polymers for modification of asphalt is an attempt to prolong the service life and improve the performance of asphalt particularly for road pavement applications. This research aims to study mechanical and thermal properties of asphalt modification by bisphenol A based benzoxazine resin.
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Application of Diatomite Modified Asphalt

Applied Mechanics and Materials, 2013
The present domestic modifiers are mainly by-products of petroleum --- costing high and non-renewable, which lead to the difficulty in their wide use. This paper explores the mechanisms of purified diatomite, enhancing the stability of asphalt mixture under high temperature, low temperature or with water.
Ling Jiang, Qiu Long Liu
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Effect of asphalt modified with polyethylene fiber on asphaltic characteristics

2021
ÖZET Artan traffic hacmi ve buna bağlı olarak artan dingil yükleri, lastik basınçları ve ticari taşıt sayısı yollarda deformasyonlara sebep olmakta ve bu deformasyonlara önleyebilmek için yeni çözüm arayışlarına gidilmelidir. Modifiye bağlayıcılar ve katkılı bitümler kullanmak bu sorunlara getirilen çözümlerden birisidir.
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