The investigation of fly ash based asphalt binders using atomic force microscope

被引：8

作者：

Saha, Rajan ^{[1
]}

Malloy, Kyle ^{[1
]}

Bautista, Emil ^{[1
]}

Sobolev, Konstantin ^{[1
]}

机构：

[1] Univ Wisconsin Milwaukee, Dept Civil & Environm Engn, Milwaukee, WI 53705 USA

来源：

FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING | 2017年 / 11卷 / 04期

关键词：

AFM; fly ash; bee; rheology; asphalt; TEMPERATURE; MORPHOLOGY; BITUMEN;

D O I：

10.1007/s11709-017-0437-3

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Atomic Force Microscope (AFM) is a relatively new technique for investigation of construction materials. In this study AFM was used to investigate the interaction of asphalt binder with fly ash. Fly ash is a coal combustion byproduct of electric power utilities having pozzolanic properties and commonly used in Portland cement concrete. In this study, an investigation was made by using different types of fly ash with two types of asphalt binders such as PG 58-28 and PG 64-28. Asphalt microstructure is divided into four subgroups such as Saturates, Aromatics, Resins and Asphaltenes (SARA). These four phases can be distinguished by the atomic force microscope. The interaction of these phases affected by introducing fly-ash was investigated and correlation with rheological properties was observed.

引用

页码：380 / 387

页数：8

共 16 条

[11] Temperature and thermal history dependence of the microstructure in bituminous materials
Nahar, S. N.
Schmets, A. J. M.
Scarpas, A.
Schitter, G.
[J]. EUROPEAN POLYMER JOURNAL, 2013, 49 (08) : 1964 - 1974
[12] Morphology of asphalts, asphalt fractions and model wax-doped asphalts studied by atomic force microscopy
Pauli, A. T.
Grimes, R. W.
Beemer, A. G.
Turner, T. F.
Branthaver, J. F.
[J]. INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING, 2011, 12 (04) : 291 - 309
[13] Pauli A T, 2001, S HEAV OIL RES COMP
[14] Aging of asphaltic binders investigated with atomic force microscopy
Rebelo, L. M.
de Sousa, J. S.
Abreu, A. S.
Baroni, M. P. M. A.
Alencar, A. E. V.
Soares, S. A.
Mendes Filho, J.
Soares, J. B.
[J]. FUEL, 2014, 117 : 15 - 25
[15] Sobolev K., 2013, Application of fly ash in ASHphalt Concrete: from Challenges to Opportunities
[16] A systematic AFM-based method to measure adhesion differences between micron-sized domains in asphalt binders
Yu, Xiaokong
Burnham, Nancy A.
Mallick, Rajib B.
Tao, Mingjiang
[J]. FUEL, 2013, 113 : 443 - 447

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