scholarly journals Axial Compressive Behavior of Steel Fiber-Reinforced Recycled Coarse Aggregate Concrete-Filled Short Circular Steel Columns

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Qiao-Huan Wang ◽  
Jiong-Feng Liang ◽  
Chun-Feng He ◽  
Wei Li
Keyword(s):  
Coarse Aggregate ◽  
Steel Fiber ◽  
Concrete Strength ◽  
Great Influence ◽  
Fiber Content ◽  
Fiber Reinforced ◽  
Compressive Behavior ◽  
Steel Columns ◽  
Recycled Coarse Aggregate ◽  
Short Columns

This paper attempts to explore the effects of recycled coarse aggregate content, steel fiber content, and concrete strength on the axial compressive behavior of steel fiber-reinforced recycled coarse aggregate (RCA) concrete-filled circular steel stub columns. A total of 14 short columns are tested. The results show that using RCA in concrete will reduce the bearing capacity of short columns, but the increase in steel fiber content and concrete strength can eliminate this shortcoming. Not only that, the concrete strength has a great influence on the ductility and stiffness of the specimen.

Penetration Resistance Research of Fiber Reinforced RPC

2014 ◽  
Vol 1055 ◽  
pp. 23-26
Author(s):  
Can Xu
Keyword(s):  
Reinforced Concrete ◽  
Coarse Aggregate ◽  
Steel Fiber ◽  
Penetration Resistance ◽  
Fiber Content ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Quartz Powder ◽  
Steel Fiber Reinforced Concrete

In the original to remove steel and steel fiber reinforced concrete coarse aggregate in quartz powder and a small amount of activator, can boost steel fiber content, and its application in construction makes it more convenient, but how the penetration resistance works is not particularly clear. Through the penetration resistance experiment, found that when joined the SF and BF, RPC can still keep complete even after three times by penetration ,indicating the good performance of penetration resistance.

scholarly journals Mixture Proportion Design Method of Steel Fiber Reinforced Recycled Coarse Aggregate Concrete

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 375 ◽  
Author(s):  
Danying Gao ◽  
Lijuan Zhang ◽  
Michelle Nokken ◽  
Jun Zhao
Keyword(s):  
Coarse Aggregate ◽  
Steel Fiber ◽  
Design Method ◽  
Target Strength ◽  
Test Results ◽  
Fiber Reinforced ◽  
Aggregate Concrete ◽  
Recycled Coarse Aggregate ◽  
Mix Proportion ◽  
Fiber Characteristic

Steel fiber reinforced recycled coarse aggregate concrete (SFRCAC) is an impact minimisation building material. Mixture proportion design method of SFRCAC is developed in this paper to obtain concrete with target strength and workability, which can be used in structural members. Four key parameters of mixture proportioning, steel fiber content, water-cement ratio, water content and sand ratio are discussed through the mixture design tests. The formula for calculating the four key parameters of mixture proportions for SFRCAC are established through the statistical analysis of test results, which mainly consider the influences of recycled coarse aggregate (RCA) replacement ratio and steel fiber characteristic coefficient. The detailed procedure by using the new mixture proportion design method is illustrated with examples. The formulas established have the simple form, reflect the properties of RCA and steel fibers, enhance the mixture proportion design accuracy, and provide the reference for the mix proportion design of SFRCAC.

Research of Post-Fire Mechanical Property of Steel Fiber Reinforced Ceramsite Concrete Filled Steel Tubes after Exposure to Fire

2013 ◽  
Vol 790 ◽  
pp. 181-184
Author(s):  
Hai Lun Tong ◽  
Tian Hong Wang ◽  
Jian Qi Lu ◽  
Xin Tang Wang
Keyword(s):  
Bearing Capacity ◽  
Steel Fiber ◽  
Fiber Reinforced ◽  
Fire Load ◽  
Furnace Temperature ◽  
Steel Tubes ◽  
Compression Performance ◽  
Short Columns ◽  
Maximum Value ◽  
Concrete Filled Steel Tubes

The post-fire axial compressive behavior of a set of steel fiber reinforced ceramsite concrete filled steel tubular short columns (noted as SFCC-SSC) was experimentally studied. Effect of the maximum value of fire response temperatures of the specimens and some parameters on the axial compression performance of the specimens was especially discussed. The results show that the surface of the steel tubes after fire presented dark red for 700°Cof furnace temperature and orange red for 900°C, and there was no obvious descending segment in post-fire load-displacement curves of the most specimens subjected to fire load. It was concluded that the axial bearing capacity of the specimens aftersuffering the furnace temperature of 900°C is much less than that of the specimens not subjected to fire load, and the volume of steel fiber of 0.5% of has the greatest effect on post-fire bearing capacity of specimens of SFCC-SSC.

Mechanical properties of steel fiber-reinforced UHPC mixtures exposed to elevated temperature: Effects of exposure duration and fiber content

2019 ◽  
Vol 168 ◽  
pp. 291-301 ◽  
Author(s):  
Shamsad Ahmad ◽  
Mehboob Rasul ◽  
Saheed Kolawole Adekunle ◽  
Salah U. Al-Dulaijan ◽  
Mohammed Maslehuddin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Elevated Temperature ◽  
Temperature Effects ◽  
Exposure Duration ◽  
Steel Fiber ◽  
Fiber Content ◽  
Fiber Reinforced
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