Paper Title:
Experimental Study on Vacuum-Assisted Pumping Technique of Steel Tube-Confined Concrete
  Abstract

A new technique for construction of steel tube-confined concrete (STCC), i.e., vacuum-assisted pumping technique was put forward in this paper, and the simulation research both in laboratory and on the building site had been done. The test results showed that the formation of air membrane between steel tube and core concrete could be effectively inhibited by controlling the air content of concrete through optimizing design for mix proportion of concrete and by regulating the vacuum pressure in steel tube during the process of concrete pumping, and thus the density of concrete was increased and the bond between steel tube and concrete was improved. Therefore, the performance of STCC structure such as the ultimate load-bearing capacity was enhanced. Moreover, this new technique can decrease the difficulty of concrete pumping. The technology had been applied in the construction of Yichang Yangtze River Bridge in Yichang-Wanxian railway.

  Info
Periodical
Key Engineering Materials (Volumes 405-406)
Edited by
Hao-Wen YE and Gai-Fei PENG
Pages
89-95
DOI
10.4028/www.scientific.net/KEM.405-406.89
Citation
S. G. Hu, Y. Z. Peng, Q. J. Ding, S. D. Luo, "Experimental Study on Vacuum-Assisted Pumping Technique of Steel Tube-Confined Concrete", Key Engineering Materials, Vols. 405-406, pp. 89-95, 2009
Online since
January 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Meng Fu Wang, Xing Yu Song
Abstract:The relationships between the mechanical properties of modified concrete and the composition of latex blend were studied. Influence of steel...
1869
Authors: Xing Guo Wang, Zhao Xia Cheng, Yongchao Hao, Yi Xin Wang
Abstract:Mixing three different fiber composites into concrete specimens respectively, compressive strength, splitting tensile strength and flexural...
1976
Authors: Yan Dong Jia, Zheng Wei Zhou, Yan Dong Qu, Ao Shuang Tian
Abstract:Comparative experiments on the ordinary steel fiber recycled concrete (SFRC) and roller compacted SFRC were carried out to research the...
135
Authors: Yan Kun Zhang, Xiao Hu Li, Pan Zhang
Chapter 1: High Strength High Performance Materials and New Structural System
Abstract:Based on the experiment, the splitting tensile strength and axial tensile strength of specified density steel fiber concrete are studied. The...
330
Authors: Fei Yu Liao, Yong Jin Li
Chapter 1: Traditional Building Materials
Abstract:Gap between steel tube and concrete core could be recognized as a type of initial concrete imperfection in concrete-filled steel tubular...
35