[1]祝瑜,杨英姿,姚燕,等.SAP对高延性水泥基复合材料弯曲性能的影响[J].深圳大学学报理工版,2014,31(2):193-197.[doi:10.3724/SP.J.1249.2014.02193]
 Zhu Yu,Yang Yingzi,Yao Yan,et al.Effect of superabsorbent polymer particles on the flexural properties of engineered cementitious composites[J].Journal of Shenzhen University Science and Engineering,2014,31(2):193-197.[doi:10.3724/SP.J.1249.2014.02193]
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SAP对高延性水泥基复合材料弯曲性能的影响()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第31卷
期数:
2014年第2期
页码:
193-197
栏目:
土木建筑工程
出版日期:
2014-03-20

文章信息/Info

Title:
Effect of superabsorbent polymer particles on the flexural properties of engineered cementitious composites
文章编号:
20140214
作者:
祝瑜1杨英姿2姚燕2管学茂1
1)河南理工大学材料科学与工程学院,河南焦作 454003
2)哈尔滨工业大学土木工程学院,哈尔滨 150001
Author(s):
Zhu Yu1 Yang Yingzi2 Yao Yan2 and Guan Xuemao1
1)School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan Province,P.R.China
2)School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, P.R.China
关键词:
工程材料高延性水泥基复合材料PVA纤维超级吸水颗粒粉煤灰韧性
Keywords:
engineering materialengineered cementitious composites pdyvinyl alcohol fiber superabsorbent polymer particles fly ash ductility
分类号:
TQ 177.6+8
DOI:
10.3724/SP.J.1249.2014.02193
文献标志码:
A
摘要:
为了考察超级吸水颗粒(superabsorbent polymer particles,SAP)对高延性水泥基复合材料(engineered cementitious composites,ECC)性能的影响,研究了SAP的质量分数分别为0、0.2%和0.4%时,6组水泥基复合材料的抗弯性能、抗压强度、抗折强度及裂缝分布特点.结果表明,水泥基复合材料的28 d挠度都不低于10 mm;SAP的质量分数越高,ECC的挠度越大.粉煤灰的质量分数为70%时,水泥基复合材料的28 d挠度超过了25 mm.SAP的质量分数越多,抗压强度和抗折强度都有不同程度的减小,但其后期强度增加较快.此外,ECC的弯曲变形能力与金属相似;在基体中引入SAP颗粒,能够增加裂缝数量,减小裂缝宽度和裂缝间距.
Abstract:
The influence of superabsorbent polymer (SAP) particles on the mechanical properties of engineered cementitious composites (ECC) is investigated by employing the four-point bending test, compressive strength and flexural strength. Six different ECC mix proportions are applied, and the replacement levels of fly ash are 50% and 70%, and SAP contents are 0, 0.2% and 0.4% of binder materials, respectively. The results show that the deflection of ECC on Day 28 is not less than 10mm. The deflection of ECC becomes larger with the increase of the content of SAP. Especially, when the replacement level of fly ash is 70%, the deflection of ECC on 28 days is 25mm, the increase of SAP will result in decrease of the compressive strength and flexural strength of ECC on Day 28, and obvious increase of the compressive strength after Day 28. The ductility of ECC is similar to that of metal. Incorporating SAP into matrix can increase the crack number and reduce the crack width and crack distance.

参考文献/References:

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备注/Memo

备注/Memo:
Received:2013-10-09;Accepted:2014-02-18
Foundation:National Natural Science Foundation of China (50872127)
Corresponding author:Professor Yang Yingzi. E-mail: yzyang@hit.edu.cn
Citation:Zhu Yu,Yang Yingzi,Yao Yan,et al. Effect of superabsorbent polymer particles on the flexural properties of engineered cementitious composites[J]. Journal of Shenzhen University Science and Engineering, 2014, 31(2): 193-197.(in Chinese)
基金项目:国家自然科学基金资助项目(50872127)
作者简介:祝瑜(1983-),女(汉族),山东省菏泽市人,河南理工大学讲师、博士. E-mail:hitzhuyu@163.com
引文:祝瑜,杨英姿,姚燕,等.SAP对高延性水泥基复合材料弯曲性能的影响[J]. 深圳大学学报理工版,2014,31(2):193-197.
更新日期/Last Update: 2014-03-20