scholarly journals Mechanical Behavior of Recycled Aggregate Concrete-Filled Steel Tubular Columns before and after Fire

Materials ◽  
2017 ◽  
Vol 10 (3) ◽  
pp. 274 ◽  
Author(s):  
Wenchao Liu ◽  
Wanlin Cao ◽  
Jianwei Zhang ◽  
Ruwei Wang ◽  
Lele Ren
Keyword(s):  
Mechanical Behavior ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Aggregate Concrete ◽  
Tubular Columns ◽  
Before And After

scholarly journals Numerical Study on Temperature Field of Recycled Aggregate Concrete-Filled Steel Tubular Columns Under Fire

2019 ◽  
Vol 304 ◽  
pp. 052019
Author(s):  
Zheng Chen ◽  
Wenchao Liu ◽  
Kesheng Zhang ◽  
Ruwei Wang ◽  
Lele Ren
Keyword(s):  
Temperature Field ◽  
Numerical Study ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Aggregate Concrete ◽  
Tubular Columns

Influence of different treatment methods on the mechanical behavior of recycled aggregate concrete: A comparative study

2019 ◽  
Vol 104 ◽  
pp. 103398 ◽  
Author(s):  
Syed Minhaj Saleem Kazmi ◽  
Muhammad Junaid Munir ◽  
Yu-Fei Wu ◽  
Indubhushan Patnaikuni ◽  
Yingwu Zhou ◽  
...  
Keyword(s):  
Comparative Study ◽  
Mechanical Behavior ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Aggregate Concrete ◽  
Treatment Methods

Real-time detection of surface deformation and strain in recycled aggregate concrete-filled steel tubular columns via four-ocular vision

2019 ◽  
Vol 59 ◽  
pp. 36-46 ◽  
Author(s):  
Yunchao Tang ◽  
Lijuan Li ◽  
Chenglin Wang ◽  
Mingyou Chen ◽  
Wenxian Feng ◽  
...  
Keyword(s):  
Real Time ◽  
Surface Deformation ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Aggregate Concrete ◽  
Tubular Columns ◽  
Real Time Detection

Microscopic Analysis and Experimental Research on Thermal Mechanical Behavior of Natural Aggregate Concrete

2010 ◽  
Vol 129-131 ◽  
pp. 1039-1042
Author(s):  
H.Q. Yan ◽  
Q.Y. Wang
Keyword(s):  
Compressive Strength ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Microscopic Analysis ◽  
Test Methods ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Strength Analysis ◽  
Aggregate Concrete ◽  
Natural Aggregate

Reinforced concrete construction is very common recently and extensively used both in industrial and commercial buildings. With the gradual rise in occurrences of fire accidents in recent years, a more thorough and quantitative understanding of the damage phenomenon in concrete structures is required. However, the mechanical behavior of concrete could actually be more complex under high temperature conditions than at room temperature. Restoration and reinforcement of the structures exposed to fire may have to be based on residual strength analysis and therefore require a correlation between temperature and mechanical properties. Thus, in order to meet the modern challenges of rapid engineering advances and societal development, further research on the concrete material and its structural behavior at high temperatures becomes extremely important. The present paper deals with investigations on the effect of high temperature exposure on the compressive strength of natural aggregate concrete. Experiments were conducted to study the compressive strength variations with increasing temperatures, up to 700 °C, and the subsequent cooling modes such as natural and spray cooling. Results show that the compressive strength gradually decreases with increasing temperatures. And micro-structural observations of the concrete specimens by means of scanning electron microscopy (SEM) were obtained. These test methods and results can be used for analyzing and investigating the behavior of recycled aggregate concrete with increasing temperatures.

Effects of strain rate on mechanical behavior of modeled recycled aggregate concrete under uniaxial compression

2015 ◽  
Vol 93 ◽  
pp. 214-222 ◽  
Author(s):  
Jianzhuang Xiao ◽  
Long Li ◽  
Luming Shen ◽  
Junqiang Yuan
Keyword(s):  
Strain Rate ◽  
Mechanical Behavior ◽  
Uniaxial Compression ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Aggregate Concrete

Properties of Recycled Aggregate Concrete Filled Steel Tubes

2014 ◽  
Vol 1065-1069 ◽  
pp. 1323-1326
Author(s):  
Yi Jie Huang ◽  
Huang Sheng Sun
Keyword(s):  
Mechanical Behavior ◽  
Steel Tube ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Test Results ◽  
Structural Elements ◽  
Steel Tubes ◽  
Aggregate Concrete ◽  
Flexural Performance ◽  
Concrete Filled Steel Tubes

A review on the properties of recycled aggregate concrete filled steel tubes (RACSFT) was presented, followed by the short overview on the related researches. The uniaxial mechanical behavior, flexural performance, creep performance as well as eccentric loaded behavior of RACSFT specimens were discussed. It was found that the differences between the element made of recycled aggregate concrete (RAC) and that of natural aggregate concrete (NAC) could not be ignored. The performance of the RACFST is inferior to that of natural concrete filled steel tube (CFST). But, the RACSFT can be applied into structural elements safely. Based on the test results, it was also concluded that the RACSFT is an effective method to improve the application of RAC.

Theoretical study on mechanical behavior of steel confined recycled aggregate concrete

2012 ◽  
Vol 76 ◽  
pp. 100-111 ◽  
Author(s):  
Yijie Huang ◽  
Jianzhuang Xiao ◽  
Ch. Zhang
Keyword(s):  
Mechanical Behavior ◽  
Theoretical Study ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Aggregate Concrete

Test Study on the Mechanical Behavior of Recycled Aggregate Concrete Wall-Beam

2013 ◽  
Vol 351-352 ◽  
pp. 260-263 ◽  
Author(s):  
Min Zhang ◽  
Xiao Jian Fu ◽  
Yang Wu ◽  
Hao Sun
Keyword(s):  
Mechanical Behavior ◽  
Structural Integrity ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Brick Wall ◽  
Concrete Wall ◽  
Aggregate Concrete ◽  
Test Study ◽  
Strain Relationship ◽  
New Type

A new type of wall-beam was put forward, of which the upper wall is replaced by recycled aggregate concrete whose coarse aggregate is made of the waste brick. Three recycled aggregate concrete wall-walls and three ordinary brick wall-beams were tested, and then the bearing capacity, stress-strain relationship, cracking load and failure mode were analyzed. The results show that: the structural integrity of recycled aggregate concrete wall-beam is better than ordinary brick wall-beam, and the increase of the depth of joist can improve the mechanical behavior of wall-beam structure under the condition of same depth-span ratio.

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