[1] Qian Shunzhi, Zhang Zhigang,. Development of engineered cementitious compositeswith local ingredients [J]. Journal of Southeast University (English Edition), 2012, 28 (3): 327-330. [doi:10.3969/j.issn.1003-7985.2012.03.013]

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Development of engineered cementitious compositeswith local ingredients()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

28

Issue:

2012 3

Page:

327-330

Research Field:

Traffic and Transportation Engineering

Publishing date:

2012-09-30

Info

Title:

Development of engineered cementitious compositeswith local ingredients

Author(s):

Qian Shunzhi;  Zhang Zhigang

School of Transportation, Southeast University, Nanjing 210096, China

Keywords:

engineered cementitious composites(ECC);  high tensile ductility;  material cost;  feasibility study

PACS:

U444

DOI:

10.3969/j.issn.1003-7985.2012.03.013

Abstract:

In order to reduce the cost of high performance polyvinyl alcohol(PVA)fiber reinforced cementitious material(called engineered cementitious composites, ECC), a ductile ECC material is developed using domestic PVA fibers along with other local ingredients, such as fly ash, cement and sand. In addition to the economic analysis of ECC, the four-point bending test and the optical microscope are employed to investigate the deflection capacity of ECC, its crack width and the occurrence of the self-healing phenomenon. The experimental results suggest that ECC made with domestic ingredients exhibits larger deformability and the average crack width is controlled around 60 μm. Furthermore, the self-healing behavior is observed in cracks of the specimens after cycles of wet and dry curing. The economic analysis shows that the cost of ECC can be greatly reduced via employing domestic PVA fibers. It is, therefore, feasible to produce low cost ECC material employing domestic PVA fibers, while simultaneously retaining high material ductility.

References:

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[6] 瘙
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[7] Jacobsen S, Marchand J, Gerard B. Concrete cracks I: durability and self-healing—a review [C]//Proceedings of the 2nd International Conference on Concrete under Severe Conditions, Environment and Loading. Tromso, Norway, 1998: 217-231.
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[10] Li V C, Yang E H. Self-healing materials: an alternative approach to 20 centuries of materials science [M].Dordrecht, The Netherlands: Springer, 2007.
[11] Yang Y Z, Lepech M D, Yang E H, et al. Autogenous healing of engineered cementitious composites under wet-dry cycles [J]. Cement and Concrete Research, 2009, 39(5): 382-390.

Memo

Memo:

Biography: Qian Shunzhi(1976—), male, doctor, professor, sqian@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51008071, 51278097), the Natural Science Foundation of Jiangsu Province(No.BK2010413), Teaching & Research Excellence Grant for Young Faculty Member at Southeast University, the Program for Special Talents in Six Major Fields of Jiangsu Province(No.2011-JZ-011), the Scientific Research Innovation Project for College Graduates in Jiangsu Province(No.CXLX_0136).
Citation: Qian Shunzhi, Zhang Zhigang. Development of engineered cementitious composites with local ingredients[J].Journal of Southeast University(English Edition), 2012, 28(3):327-330.[doi:10.3969/j.issn.1003-7985.2012.03.013]

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