高性能生态型建筑材料PVA-ECC的试验研究

李艳; 梁兴文; 刘泽军

doi:10.13204/j.gyjz201104021

高性能生态型建筑材料PVA-ECC的试验研究

doi: 10.13204/j.gyjz201104021

1.
1. 西安建筑科技大学土木工程学院,西安 710055;
2.
2. 河南理工大学,河南焦作 454003

基金项目:

国家自然科学基金资助项目(50678146);河南省教育厅自然科学研究资助项目(2010B560006)

详细信息

作者简介:
李艳，女，1977年出生，博士研究生，讲师。E-mail:liyan@hpu.edu.Cn

中图分类号: TU599
计量
- 文章访问数: 72
- HTML全文浏览量: 4
- PDF下载量: 143
- 被引次数: 0
出版历程
- 收稿日期: 2010-10-15
- 刊出日期: 2011-04-20

EXPERIMENTAL RESEARCH ON PREPARATION OF ECOLOGICAL CEMENTITIOUS COMPOSITES PVA-ECC

1.
1. School of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;
2.
2. School of Civil Engineering,Henan Polytechnic University,Jiaozuo 454003,China

摘要

摘要: 高韧性的聚乙烯醇纤维增强水泥基复合材料PVA-ECC具有很高的能量吸收能力，但强度通常较低。采用正交试验设计方法，研究利用工业废料制备高强度且极限变形量满足实际工程要求的PVA-ECC，使其应用于高层建筑抗震结构中。研究结果表明:在水胶比较低的情况下，即使粉煤灰掺量达到胶凝材料重量的45%，掺入适量硅灰，采用普通的细河砂可以配制出抗压强度达到60 MPa以上的高强度PVA-ECC，粉煤灰可改善PVA-ECC的应变-硬化特性，硅灰则增加了PVA-ECC的脆性。
- PVA /
- 纤维增强水泥基复合材料 /
- 强度 /
- 延性
Abstract: PVA-ECC has the properties of high ductility，which ensures the capacity for large energy dissipation，but low strength. By making waste materials，an orthogonal test method is adopted to prepare PVA-ECC with high strength but also meeting a engineering requirement of deformability. This kind of PVA-ECC can be used in high-rise buildings. The results show that the replacement of cement with 45% fly ash and proper amount silica fume can make compressive strength of PVA-ECC be more than 60 MPa，by using fine sand. Fly ash can improve strain － hardening performance of PVA-ECC. Silica fume leads to less ductile behaviour of PVA-ECC.
- PVA /
- fiber reinforced cementitious composites /
- strength /
- ductility

HTML全文

参考文献(10)

Bilington A L. Damage-Tolerant Cement-Based Materials for Performance Based Earthquake Engineering Design: Research Needs [G]∥Fracture Mechanics of Concrete Structures. IA － FraMCos,2004:53 － 60.

[2] Fischer G,Li V C. Effect of Matrix Ductility on Deformation Behavior of Steel Reinforced ECC Flexural Members Under Reversed Cyclic Loading Conditions [J]. ACI Structural Journal,2002,99(6) :781 － 790.

[3] Li V C. On the Shear Behavior of ECC [J]. J Adv Cem Based Mater,1994,1(3) :142 － 1491.

[4] Maallej M J. Hight-Velocity Impact Resistance of Hybrid-Fiber ECC [C]∥Proceedings,FraMCos 5. 2004:1051 － 1058.

[5] Wang S,Li V C. Polyvinyl Alcohol Fiber Reinforced Engineered Cementitious Composites: Material Design and Performances [C]∥ Proceedings of Intl Workshop on HPFRCC in Structural Applications. Honolulu,Hawaii,USA. 2005:23 － 26.

[6] Alexander M G,Magee B J. Durability Performance of Concrete Containing Condensed Silica Fume [J]. Cement and Concrete Research,1999(29) :917 － 922.

[7] Martinola G,Baeuml M F,Wittmann F H. Modified ECC by Means of Internal Impregnation [J]. J of Advanced Concrete Technology,2004,12(2) :207 － 212.

[8] Li V C,Lepech M,Wang S,et al. Development of Green ECC for Sustainable Infrastructure Systems [C]∥ Proc. ,Intl Workshop on Sustainable Development and Concrete Technology,Beijing,China: Published by Iowa State Univ. ,2004: 181 － 192.

[9] Song G,Zijl G V. Tailoring ECC for Commercial Application [C]∥ Proceedings of BEFIB,Varenna,Lake Como,Italy. 2004:1391 － 1400.

[10] Li V C,Mishra D K,Wu H C. Matrix Design for Pseudo Strain- Hardening Fiber Reinforced Cementitious Composites [J]. Materials and Structures,1995,28(183) : 586 － 595.

施引文献

资源附件(0)

访问统计