نتایج جستجو برای: steel and polypropylene fibers

تعداد نتایج: 16870870  

Journal: :E3S web of conferences 2023

Reinforced Steel bars used in concrete constructions are particularly susceptible to corrosion since they don't have enough resistance, which decreases durability and long-term performance. The main cause of steel bar is moisture interaction, results rust, causes cracks spalling, affects FRP bars, several benefits over such as strong resistance corrosion, higher tensile strength than a 1/4th th...

2007
Pavel Steffan Jiri Stehlik Radimír Vrba

This paper demonstrates that the addition of chemical agents and carbon fibers to cement can greatly enhance the shielding effectiveness of the concrete. In addition to improving the shielding effectiveness, carbon fibers and chemical agents enhance the tensile and flexural strengths significant ly. As both carbon fibers and steel fibers are electrically conductive, both can be added to cement ...

The tensile properties of multiscale, hybrid, thermoplastic-based nanocomposites reinforced with nano-CaCO3 particles and micro–short glass fibers (SGF) were predicted by a two-step, three-dimensionalmodel using ANSYS finite element (FE) software. Cylindrical and cuboid representative volume elements were generated to obtain the effective behavior of the multiscale hybrid composites. In the fir...

2016
Kaluvapudi. Akhil M. K. M. V. Ratnam Ranga Raju

The project aims to study tensile softening behavior of fiber reinforced concrete .Concrete is very much weak in tension but by addition of randomly oriented short crimped steel fibers will change the behavior from brittle to ductile. In the present work, the steel fibers were added at the volume fraction, being 0%, 0.5%, 1%, 1.5% to the normal strength concrete and high strength concrete. The ...

Journal: :Applied sciences 2021

The use of concrete in civil infrastructure is highly demanded structural and nonstructural elements. However, the high production could lead to severe pollution world. This can be decreased using sustainable materials mixed with cement obtain concrete. These include reinforcing fibers (e.g., steel, polypropylene, carbon fibers), recycled tire rubber, crushed glass, plastic, industrial waste) a...

2013
K. Ramesh K. Arunachalam S. Rooban Chakravarthy

The present Experimental investigation is to study the Impact Resistance of the Fly ash concrete reinforced with steel fibers. The concrete composite comprises of steel fibers in different percentages and partial replacement of cement in different proportions. Steel fibers varied from 0%, 0.5%, 1% and 1.5% by weight of cement and replacement of fly ash varied from 0%, 10%, 20%, 30% and 40% by w...

2013
K. Arunachalam S. Rooban Chakravarthy K. Ramesh

The present Experimental investigation is to study the Mechanical Properties of the Fly ash concrete reinforced with steel fibers. The concrete composite comprises of steel fibers in different percentages and partial replacement of cement in different proportions. Steel fibers varied from 0%, 0.5%, 1% and 1.5% by weight of cement and replacement of fly ash varied from 0%, 10%, 20%, 30% and 40% ...

2013
Ankit Sharma

The aim of the present study is to investigate the effect of variation of polypropylene fibres ranging from 0.1% to 0.4% along with 0.8% steel fibres on the behaviour of fibrous concrete. The mechanical properties of the concrete such as compressive and tensile strength have been investigated. The result shows that addition of polypropylene fibre has a little effect on the compressive strength,...

Journal: :Fire Technology 2023

Abstract Reinforced concrete as the most important construction material suffers from long-term deterioration due to different exposure conditions. Fire attack is a critical condition it can lead complete collapse of structure. On other hand, repair and strengthening existing structures have become necessary both technically financially. Moreover, since high-performance concretes (HPCs) are ext...

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