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Comparative study on the deformation behaviors of cement emulsified asphalt mortars

Qin, Xian-tao / Zhu, Si-yue / Chen, Shuan-fa / Li, Xin / Dou, Huai-bing

Abstract This study investigates the deformation behaviors of cement emulsified asphalt composite materials (CEACM) with varied cement content. Repeated creep test is implemented to measure the evolution of accumulated strains ( $γ_{acc}$ ) with accumulated creep time. Burgers model and piecewise curve fitting are used to obtain the viscous component of creep stiffness ( $G_{v}$ ) and creep compliance. The strain–time curves show that the $γ_{acc}$ decrease significantly and creep-recovery ratios increase gradually with the increase of C/A. The analysis of $G_{v}$ and creep compliance illustrates that the $G_{v}$ of CEACM increase by orders of magnitude. A cement asphalt ration (C/A) of 1.0 maximizes the elastic component. Incidentally, for C/A is 1.2, the CEACM demonstrate remarkably rigid behavior.

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Comparative study on the deformation behaviors of cement emulsified asphalt mortars

Qin, Xian-tao / Zhu, Si-yue / Chen, Shuan-fa / Li, Xin / Dou, Huai-bing

Abstract This study investigates the deformation behaviors of cement emulsified asphalt composite materials (CEACM) with varied cement content. Repeated creep test is implemented to measure the evolution of accumulated strains ( $γ_{acc}$ ) with accumulated creep time. Burgers model and piecewise curve fitting are used to obtain the viscous component of creep stiffness ( $G_{v}$ ) and creep compliance. The strain–time curves show that the $γ_{acc}$ decrease significantly and creep-recovery ratios increase gradually with the increase of C/A. The analysis of $G_{v}$ and creep compliance illustrates that the $G_{v}$ of CEACM increase by orders of magnitude. A cement asphalt ration (C/A) of 1.0 maximizes the elastic component. Incidentally, for C/A is 1.2, the CEACM demonstrate remarkably rigid behavior.

Comparative study on the deformation behaviors of cement emulsified asphalt mortars

Qin, Xian-tao / Zhu, Si-yue / Chen, Shuan-fa / Li, Xin / Dou, Huai-bing

Abstract This study investigates the deformation behaviors of cement emulsified asphalt composite materials (CEACM) with varied cement content. Repeated creep test is implemented to measure the evolution of accumulated strains ( $γ_{acc}$ ) with accumulated creep time. Burgers model and piecewise curve fitting are used to obtain the viscous component of creep stiffness ( $G_{v}$ ) and creep compliance. The strain–time curves show that the $γ_{acc}$ decrease significantly and creep-recovery ratios increase gradually with the increase of C/A. The analysis of $G_{v}$ and creep compliance illustrates that the $G_{v}$ of CEACM increase by orders of magnitude. A cement asphalt ration (C/A) of 1.0 maximizes the elastic component. Incidentally, for C/A is 1.2, the CEACM demonstrate remarkably rigid behavior.

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Title:

Comparative study on the deformation behaviors of cement emulsified asphalt mortars

Contributors:

Qin, Xian-tao (author) / Zhu, Si-yue (author) / Chen, Shuan-fa (author) / Li, Xin (author) / Dou, Huai-bing (author)

Published in:

Materials and Structures ; 48 ; 3241-3247

Publication date:

2014-08-13

Size:

7 pages

ISSN:

1871-6873 , 1359-5997

DOI:

https://doi.org/10.1617/s11527-014-0394-4

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Cement emulsified asphalt composite materials , Repeated creep test , Accumulated strain , The viscous component of creep stiffness , Creep compliance Engineering , Structural Mechanics , Materials Science, general , Theoretical and Applied Mechanics , Operating Procedures, Materials Treatment , Civil Engineering , Building Materials

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