Research on mechanical characteristics, fractal dimension and internal structure of fiber reinforced concrete under uniaxial compression

2020 ◽  
Vol 258 ◽  
pp. 120351
Author(s):  
Di Zheng ◽  
Weidong Song ◽  
Jianxin Fu ◽  
Gaili Xue ◽  
Jiajian Li ◽  
...  
Keyword(s):  
Fractal Dimension ◽  
Reinforced Concrete ◽  
Internal Structure ◽  
Uniaxial Compression ◽  
Mechanical Characteristics ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced

scholarly journals Analysis of Compressive Toughness and Deformability of High Ductile Fiber Reinforced Concrete

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Mingke Deng ◽  
Jian Han ◽  
Haibo Liu ◽  
Meng Qin ◽  
Xingwen Liang
Keyword(s):  
Reinforced Concrete ◽  
Uniaxial Compression ◽  
Fiber Reinforced Concrete ◽  
Evaluation Index ◽  
Peak Strain ◽  
Fiber Reinforced ◽  
Toughness Index ◽  
Fiber Bridging ◽  
Toughness Evaluation ◽  
Mortar Matrix

The compressive toughness evaluation index of HDC (high ductile fiber reinforced concrete) is studied through three groups of uniaxial compressive tests of HDC specimens with different fiber mixing amounts, and an equivalent analysis of their deformability is carried out, coming to the following conclusion:(1)the peak strain of HDC under uniaxial compression can be up to 3.41~3.67 times as large as that of the mortar matrix;(2)the equivalent compressive toughness index reflects the unit volume deformation energy of specimens under uniaxial compression and it can be used as the compressive toughness evaluation index of HDC;(3)the fiber bridging effect of HDC increases the equivalent compressive toughness index and the compressive deformability up to 3 times of the mortar matrix;(4)the relationship between the equivalent compressive toughness indexWcu0.85and the fiber mixing amountφis established according to the test results; and(5)the fiber bridging effect of the matrix in HDC can be equaling as a large number of constraint stirrups installed in the specimens, which significantly enhances the compressive toughness and the compressive deformability of specimens.

Index Analysis for Specimens of Reinforced Concretes with Mechanical Parameters

2011 ◽  
Vol 368-373 ◽  
pp. 33-37
Author(s):  
Chuan Xiao Liu ◽  
Zhi Hao Liu ◽  
Long Wang ◽  
Hong Ye Tian ◽  
Xiu Li Zhang
Keyword(s):  
Reinforced Concrete ◽  
Mechanical Characteristics ◽  
Poisson Ratio ◽  
Ultimate Strain ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Mass Ratio ◽  
Fiber Reinforced ◽  
Index Analysis ◽  
Mixed Modes

To study mechanical characteristics of general reinforced concrete in engineering, specimens of reinforced concrete with different mass ratios and specimens of fiber reinforced concrete with different distributing modes of steel fibers or mixed modes of fiberglass are produced. Testing results from these specimens state that recommended mass ratio is 1:4.29:0.74 of cement, sand to water for reinforced concrete, and mass ratio of mixed AR fiberglass is 4‰ or distributing mode of steel fibers is vertical 5 roots evenly for fiber reinforced concretes will have excellent mechanical properties. Analyzing mechanical indexes influencing characteristics of reinforced concretes, uniaxial compressive strength and ultimate strain are primary indexes, elastic modulus is an assistant index, and Poisson ratio and residual strength are both only referenced indexes.

scholarly journals Relationship between Density and Early Compressive Strength of Slurry Infiltrated Fiber Reinforced Concrete (SIFCON)

2021 ◽  
Vol 2129 (1) ◽  
pp. 012062
Author(s):  
Mustaqqim Abdul Rahim ◽  
Lim Jiann Jonq ◽  
Afizah Ayob ◽  
Shamilah Anudai Anuar ◽  
Nor Faizah Bawadi ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Reinforced Concrete ◽  
Mechanical Characteristics ◽  
Steel Fiber ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Concrete Compressive Strength ◽  
Ordinary Concrete ◽  
Percentage Volume ◽  
Physical And Mechanical Characteristics

Abstract The aim of the study is to study the physical and mechanical characteristics of Slurry Infiltrated Fiber Reinforced Concrete with fiber percentage volume of 5% and lower. For the testing of physical characteristics of the concrete, density test been conducted. For the testing of mechanical characteristics, compression test used to determine strength of concrete sample. The density of Slurry Infiltrated Fiber Reinforced Concrete increased when the usage of steel fiber percentage volume increases from 1% to 5%, nevertheless when compared to density of ordinary concrete, ordinary concrete is denser. For the significant of study, the mechanical properties of Slurry Infiltrated Fiber Reinforced Concrete, compressive strength increased when the fiber content increases from 1% to 5% percentage volume.

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