Stress–strain relationship of steel-fibre reinforced reactive powder concrete at elevated temperatures

2014 ◽  
Vol 48 (7) ◽  
pp. 2299-2314 ◽  
Author(s):  
Wenzhong Zheng ◽  
Baifu Luo ◽  
Ying Wang
Keyword(s):  
Elevated Temperatures ◽  
Steel Fibre ◽  
Reactive Powder Concrete ◽  
Stress Strain ◽  
Strain Relationship ◽  
Reactive Powder ◽  
Relationship Of

Experimental Study on Compressive Property of Basalt Fiber Reactive Powder Concrete

2020 ◽  
Vol 984 ◽  
pp. 239-244
Author(s):  
Lu Liang Wang ◽  
Hai Long Zhao ◽  
De Hong Wang ◽  
Jun Feng Bai
Keyword(s):  
Test Piece ◽  
Failure Process ◽  
Basalt Fiber ◽  
Strain Curve ◽  
Reactive Powder Concrete ◽  
Compressive Property ◽  
Fiber Volume ◽  
Stress Strain ◽  
Reactive Powder ◽  
Relationship Of

In order to study the stress-strain relationship of basalt fiber reactive powder concrete (RPC), the compressive stress-strain curve test of four groups of basalt fiber RPC was carried out. The test parameters including two kinds of basalt fiber length and three fiber volume fractions showed that the deformability of the test piece was improved and the failure process was delayed after incorporating basalt fiber. The optimum fiber fraction of the test piece with 12 mm long fiber was 0.10%. According to the experimental data, the stress-strain of the basalt fiber RPC was drawn. For the curve, the constitutive relation is fitted by the piecewise equation, and compared with the experimental curve, the fitting result is better.

scholarly journals Effect of Steel Fibers and Temperature on the Mechanical Properties of Reactive Powder Concrete

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mahmoud Ahmed Ali Abdelrahim ◽  
Aboelwafa Elthakeb ◽  
Usama Mohamed ◽  
Mohamed Taha Noaman
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Elevated Temperatures ◽  
Fine Sand ◽  
Splitting Tensile Strength ◽  
Steel Fibers ◽  
Reactive Powder Concrete ◽  
Strain Relationship ◽  
Reactive Powder

Abstract Reactive Powder Concrete (RPC) is a concrete of the modern generation it mainly contains a high percentage of cement and a small percentage of water For cement as well as the presence of fine sand, ground quartz and silica dust. This research aims Studying the behavior and mechanical characteristics of RPC exposed to elevated temperatures. The key variables in this study are steel fibers content and the high temperatures of different levels 25, 200, 300, 400 ºC. Mechanical properties of concrete behavior including compressive strength, splitting tensile strength, stress-strain relationship (modulus of elasticity), and flexural strength. The test findings indicated that the Output strength of RPC specimens decreased when the high temperature increases. At a temperature of 400 °C, all samples lost the compressive strength and splitting tensile strength.

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