scholarly journals Chemical Prestress of Expansive-Concrete-Filled Steel Tube with Flat Bar in Center

2005 ◽  
Vol 16 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Kazuhiko Ohta ◽  
Suenori Arinaga ◽  
Masami Hanai
Keyword(s):  
Steel Tube ◽  
Concrete Filled Steel Tube ◽  
Expansive Concrete

Experimental Study on Expansive Concrete Filled Steel Tube

2013 ◽  
Vol 275-277 ◽  
pp. 2077-2083
Author(s):  
Kai Cheng Huo ◽  
Xian Cheng Shu ◽  
Huan Huan Yue
Keyword(s):  
Experimental Study ◽  
Temperature Change ◽  
Axial Compression ◽  
High Strength ◽  
Steel Tube ◽  
Concrete Filled Steel Tube ◽  
Vertical Loading ◽  
Expansive Concrete ◽  
Hardening Process ◽  
Mix Proportion

Measure the temperature change of concrete-filled steel tubular with high strength low heat micro-expansive in its hardening process with different mix proportion. Study self-stress of high strength low-heat micro-expansive and study the relations of the expansive admixtures quantity and its changing regularity with the time. Observe the fail of axial compression short column of concrete-filled steel tubular with high strength expansive under vertical loading, study the changing regularity of its stress under loading.

Research on Detection of Micro-Expansive Concrete Filled Steel Tube

2013 ◽  
Vol 438-439 ◽  
pp. 246-248
Author(s):  
Ke Gao ◽  
Hao Jie Zhang ◽  
Jin Cun Zhou
Keyword(s):  
Nondestructive Testing ◽  
Theoretical Basis ◽  
Steel Tube ◽  
Concrete Filled Steel Tube ◽  
Ultrasonic Examination ◽  
Experimental Section ◽  
Expansive Concrete ◽  
Application Analysis ◽  
Testing Technology

On the basis of the ultrasonic examination of concrete filled steel tube Pylon Bridge, comprehensive research and application analysis of nondestructive testing technology was carried out on the detection of micro-expansive concrete filled steel tube through the study of concrete filled steel tubular column (experimental section), which provide a theoretical basis for the detection of this kind of concrete.

Mechanical Properties and Volume Deformation of Steel Fiber Reinforced Micro-Expansive Concrete Filled Steel Tube

2012 ◽  
Vol 204-208 ◽  
pp. 4083-4087 ◽  
Author(s):  
Xiao Jun Zhou ◽  
Ting Min Mou ◽  
Bi Kun Fan ◽  
Qing Jun Ding
Keyword(s):  
Steel Fiber ◽  
Volume Fraction ◽  
Steel Tube ◽  
Fiber Reinforced ◽  
Volume Deformation ◽  
Concrete Filled Steel Tube ◽  
Expansion Test ◽  
Expansive Concrete ◽  
Deformation Behaviors ◽  
Splitting Tensile Test

Abstract: Steel fiber reinforced micro-expansive concrete (SREC) with excellent fluidity, high resistance to segregation and good self-compacting ability was prepared. Compressive test, splitting tensile test and flexural test were performed. Self-developed confined expansion test instrument of concrete filled steel tube (CFST) was used to evaluate the deformation behaviors of SREC confined in the steel tube. The structure behavior of steel fiber reinforced micro-expansive concrete filled steel tube (SECFST) was investigated through 12 short column specimens. Expansion agent invariant and steel fiber contents were the dominant variables. The results showed that when compared to common micro-expansive concrete, the splitting tensile and flexural strength of SREC were increased by 78.0% and 64.7%, respectively. When the expansion agent amount was 40kg and volume fraction of steel fiber was less than 1%, SECFST exhibited stable expansive deformation. The use of steel fiber combined with expansion agent moderately improved the yield load and ultimate load of CFST.

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