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《材料导报》期刊社  2017, Vol. 31 Issue (20): 124-128    https://doi.org/10.11896/j.issn.1005-023X.2017.020.026
  材料研究 |
自密实钢纤维轻骨料混凝土的早期性能与损伤分析*
张虎1,2
1 中交路桥南方工程有限公司,北京 101121;
2 重庆交通大学岩土工程研究所,重庆 400074
Early Capability and Damage Analysis of Self-Compacting, Steel-fiber-reinforced Lightweight Aggregate Concrete
ZHANG Hu1,2
1 China Communication South Road & Bridge Co.,LTD, Beijing 101121;
2 Institute of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing 400074
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摘要 在自密实轻骨料混凝土基础之上掺入钢纤维配制出自密实钢纤维轻骨料混凝土,分析了自密实钢纤维轻骨料混凝土的抗压强度、抗拉强度等主要力学性能以及收缩、抗碳化等耐久性能,并与普通骨料自密实混凝土进行对比分析。探讨了钢纤维对于改善自密实轻骨料混凝土损伤所起的作用及其机理。结果表明:掺入钢纤维后自密实轻骨料混凝土的抗压强度增大,劈拉强度明显提高,收缩及抗碳化能力也有明显改善。与普通骨料混凝土相比,自密实钢纤维轻骨料混凝土初始裂缝的产生与发展得到有效抑制。
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张虎
关键词:  自密实钢纤维轻骨料混凝土  力学性能  耐久性能  损伤    
Abstract: In this paper, we successfully prepared a self-compacting, steel-fiber-reinforced lightweight aggregate concrete on the basis of self-compacting lightweight aggregate concrete and steel fibers reinforcements. A comparative study was carried out on the mechanical properties and durabilities (compressive strength, tensile strength, shrinkage, carbonization resistance, etc.) between the self-compacting steel-fiber-reinforced lightweight aggregate concrete and self-compacting concrete with ordinary aggregate. The function and mechanism of steel fiber in improving the damage of self-compacting lightweight aggregate concrete were discussed. The results showed that the addition of steel fibers lead to an increase of compressive strength and a significant rise of splitting tensile strength for lightweight aggregate concrete, as well as obvious improvements for both shrinkage and carbonation resistance. Compared with ordinary aggregate concrete, the emergence and propagation of primary cracks of the self-compacting steel-fiber-reinforced lightweight aggregate concrete can be effectively inhibited.
Key words:  self-compacting steel-fiber-reinforced lightweight aggregate concrete    mechanical property    durability    damage
出版日期:  2017-10-25      发布日期:  2018-05-05
ZTFLH:  TU528  
基金资助: *国家自然科学基金(51478073)
作者简介:  张虎:男,1979年生,主要从事道路及地下工程建设与管理工作 E-mail:huzhang@vip.163.com 翁其能:通讯作者,男,1976年生,博士,教授,主要从事地下工程建养及服役性能研究、混凝土材料损伤及耐久性研究 E-mail:qnweng@163.com
引用本文:    
张虎. 自密实钢纤维轻骨料混凝土的早期性能与损伤分析*[J]. 《材料导报》期刊社, 2017, 31(20): 124-128.
ZHANG Hu. Early Capability and Damage Analysis of Self-Compacting, Steel-fiber-reinforced Lightweight Aggregate Concrete. Materials Reports, 2017, 31(20): 124-128.
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https://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.020.026  或          https://www.mater-rep.com/CN/Y2017/V31/I20/124
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