混杂纤维高性能导电混凝土裂缝监测的试验研究

韩知伯; 丁一宁

doi:10.13204/j.gyjz201211022

混杂纤维高性能导电混凝土裂缝监测的试验研究

doi: 10.13204/j.gyjz201211022

1.
大连理工大学海岸与近海工程国家重点实验室,辽宁大连 116023

基金项目:

国家自然科学基金资助项目(51078058)

详细信息

作者简介:
韩知伯,男,1988年出生,硕士研究生。E－mail:hanzhibo8878@163.com

中图分类号: TU528.572
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- 文章访问数: 127
- HTML全文浏览量: 2
- PDF下载量: 74
- 被引次数: 0
出版历程
- 修回日期: 2012-08-20
- 刊出日期: 2012-11-20

EXPERIMENTAL STUDY ON CRACK MONITORING OF HYBRID FIBERS HIGH PERFORMANCE CONCRETE

1.
State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116023,China

摘要

摘要: 为了研究高流态高性能混凝土开裂后其导电性与开裂电阻之间的关系,以碳纤维和钢纤维作为复相导电材料与结构材料加入混凝土中用以改善其导电性能、韧性与抗裂性。通过试验分析,建立了混凝土梁在受弯荷载作用下电阻变化率与裂缝宽度的关系。研究表明:开裂后,混凝土电阻变化率与裂缝宽度呈线性关系。
- 混杂纤维 /
- 导电混凝土 /
- 电阻变化率 /
- 裂缝宽度
Abstract: In order to study the damage after concrete cracking,the influence of the combined use of steel fiber and carbon fiber on the conductivity and crack resistance of concrete beam under flexural loading were investigated．Carbon fiber and steel fiber were added as diphasic conductive materials to produce the electric conductive and ductile concrete.It was reported the experimental and analytical work associated with establishing the crack width in relation to the fractional change in resistance of electric conductive concrete．After cracking,the electrical resistance change was found to correlate linearly with the crack width on the tension side of concrete beam．
- hybrid fibers /
- conductive concrete /
- fractional change in resistance /
- crack width

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参考文献(14)

[2] Wen Sihai，Chung D D L．Partial Replacement of Carbon fiber by Carbon Black in Multifunctional Cement-Matrix Composites[J].Carbon，2007(45): 505-513.

Wen Sihai，Chung D D L．Self-sensing of Flexural Damage and Strain in Carbon Reinforced Cement and Effect of Embedded Steel Reinforcing Bars [J].Carbon，2006(44): 1496-1502.

[3] Wen Sihai，Chung D D L.Uniaxial Tension in Carbon Fiber Reinforced Cement，Sensed by Electrical Resistivity Measurement in Longitudinal and Transverse Directions[J].Cement and Concrete Research，2000(30): 1289-1294.

[4] Wen Sihai，Chung D D L.Uniaxial Compression in Carbon Fiber Reinforced Cement，Sensed by Electrical Resistivity Measurement in Longitudinal and Transverse Directions [J].Cement and Concrete Research，2001(31): 297-301.

[5] Wen Sihai，Chung D D L.A Comparative Study of Steel and Carbon-Fiber Cement as Pirzoresistive Strain Sensors[J].Advances in Cement Research，2003，15(3): 119-118.

[6] Wen Sihai，Chung D D L.Effects of Strain and Damage on the Strain Sensing Ability of Carbon Fiber Cement[J].J Mater Civil Eng，2006，18(3): 355-360.

[7] 陈龙风.复相导电混凝土应用于损伤诊断的试验研究[D].大连: 大连理工大学，2009．Ding Yining.Investigations into the Relationship between Deflection and Crack Mouth Opening Displacement of SFRC beam[J].Construction and Building Materials，2011(25):2432－2440.

[8] Chung DDL，Electromagnetic Interference Shielding Effectiveness of Carbon Materials [J].Carbon，2001，39(2): 279-285.

[9] Shi Zengqiang，Chung D D L.Carbon Fiber Reinforced Concrete for Traffic Monitoring and Weighing in Motion [J].Cement and Concrete Research，1999(29): 435-439.

[10] Sherif Yehia，Christopher Y Tuan.Conductive Concrete Overlay for Bridge Deck Deicing [J].ACI Material Journal，1999，96(3): 382-390.

[11] Specification and Guide Lines for Self-Compacting Concrete[S].

[12] Surrey: EFNARC，2002.

[13] CECS 13: 1989 钢纤维混凝土试验方法[S].

[14] GB/T500802002普通混凝土拌合物性能试验方法标准[S].

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