Fatigue Behavior of Cement Asphalt Emulsion Mortar

Dong Mei Tian; Jian Yin

doi:10.4028/www.scientific.net/AMM.847.25

Paper Titles

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Experimental Research and Application of Super-Retarding Mortar
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The Comparison and Analysis of Void Fraction of OGFC-13 Asphalt Concrete through Vacuum Method and Volume Method
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Fatigue Behavior of Cement Asphalt Emulsion Mortar
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Structural Condition Evaluation of an In-Service Glued-Laminated Timber Bridge Based on the Dynamic and Static Testing
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Experimental Study on Mechanical Properties of Larch Glulam Columns under Axial Compression
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Experimental Investigation on the Compressive Behaviour of Clay Brick Masonry Columns Confined by BFRP or Steel Wires
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Experimental Investigation of Glass and Carbon FRCM Composite Materials Applied onto Concrete Supports
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 847Fatigue Behavior of Cement Asphalt Emulsion Mortar

Fatigue Behavior of Cement Asphalt Emulsion Mortar

Abstract:

As one of the key components of non-ballast slab track in high speed railway, cement asphalt emulsion mortar (CAM) has low compressive strength and low elastic modulus. This makes CAM possible to be served as supporting, height-adjusting, vibration-dissipating and deformation-fitting sandwich-layer between pre-stress slab and concrete roadbed. To study the fatigue behavior of the CAM, fatigue tests were conducted at room temperature and negative temperature, respectively. The permanent strain, elastic modulus and yield strength of fatigue-tested specimens were compared to the reference one. The results showed that the small permanent deformation lead to very little displacement differences among the slab track system. Secondly, the elastic modulus and yield strength of fatigue test specimens were both higher than that of reference one. Because the fatigue process might strengthen the CAM by compacting micro-cracks. Additionally, arising from the temperature sensitivity of asphalt, viscosity behavior of asphalt mortar at room temperature is changed to brittleness behavior at negative temperature.

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Periodical:

Applied Mechanics and Materials (Volume 847)

Pages:

25-30

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.847.25

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Online since:

July 2016

Authors:

Dong Mei Tian*, Jian Yin

Keywords:

Cement Asphalt Emulsion Mortar, Elastic Modulus, Fatigue Behavior, Negative Temperature, Permanent Deformation, Room Temperature

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