[1] Saly Fathy, Sun Wei,. Influence of different curing regimes on the microstructureand macro performance of UHPFRCC [J]. Journal of Southeast University (English Edition), 2014, 30 (3): 348-352. [doi:10.3969/j.issn.1003-7985.2014.03.017]

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Influence of different curing regimes on the microstructureand macro performance of UHPFRCC()

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

Volumn:

30

Issue:

2014 3

Page:

348-352

Research Field:

Materials Sciences and Engineering

Publishing date:

2014-09-30

Info

Title:

Influence of different curing regimes on the microstructureand macro performance of UHPFRCC

Author(s):

Saly Fathy;  Sun Wei

School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

Keywords:

ultra-high performance fiber reinforced cementitious composite(UHPFRCC);  curing regimes;  durability;  microstructure

PACS:

TU528

DOI:

10.3969/j.issn.1003-7985.2014.03.017

Abstract:

This study investigates the influence of different curing regimes on the microstructure and macro properties of ultra-high performance fiber reinforced cementitious composite(UHPFRCC), and aims to discover whether it is possible to produce qualified UHPFRCC using different curing regimes. A control mix of UHPFRCC is prepared. The mechanical performance and the short-term durability of the UHPFRCC matrix under three curing regimes are studied. In addition, the microstructures of the UHPFRCC matrix with different curing conditions are analyzed by combining scanning electron microscopy(SEM)and mercury intrusion porosimetry(MIP). The results explore how different UHPFRCC curing regimes affect its microstructure and how the microstructure affects its macro behavior. Heat and steam curing for 3 d is succeeded to produce the UHPFRCC with nearly the same mechanical properties and durability as those of the 90 d standard curing. However, the heat cured UHPFRCC does not show great resistance to chloride-ion penetration.

References:

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[8] Habel K, Charron J P, Braike S, et al. Ultra-high performance fibre reinforced concrete mix design in central Canada [J]. Canadian Journal of Civil Engineering, 2008, 35(2): 217-224.
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Memo

Memo:

Biographies: Saly Fathy(1985—), female, graduate; Sun Wei(corresponding author), female, professor, academician of China Engineering Academy, sunwei@seu.edu.cn.
Foundation items: The Scholarship Supported by the China Scholarship Council, the Technical Research Program from NV Bekaert SA of Belgium, the National Natural Science Foundation of China(No.50908047).
Citation: Saly Fathy, Sun Wei.Influence of different curing regimes on the microstructure and macro performance of UHPFRCC[J].Journal of Southeast University(English Edition), 2014, 30(3):348-352.[doi:10.3969/j.issn.1003-7985.2014.03.017]

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