scholarly journals Experimental Examination of Fiber Reinforced Concrete Incorporation with Lathe Steel Scrap

2019 ◽  
Vol 9 (2) ◽  
pp. 3729-3732
Keyword(s):  
Fibrous Material ◽  
High Strength ◽  
Shear Resistance ◽  
Fiber Reinforced Concrete ◽  
Manufacturing Industries ◽  
Steel Scrap ◽  
Experimental Examination ◽  
Flexural Beam ◽  
Land Filling

Food and shelter are the basic needs of every human being, as the population of the world is increasing there is an emerging need of mass constructions or multi storied constructions which can accommodate a greater number of people. In this aspect high strength concrete is required which is eco-friendly i.e. it must be more sustainable and effort worthy. To accelerate the properties of concrete we can add fibrous material to the concrete which are evenly distributed and randomly oriented and helps to increase the compressive strength, shear resistance, crack résistance, modulus of elasticity, toughness and reduction of shrinkage of concrete. And also, by keeping sustainability in mind we have used Lathe steel scrap as a fibrous material in the concrete, which is non-bio-degradable solid waste produced by Lathe machinery in manufacturing industries, land filling by these materials causes land pollution and also affect the quality of ground water at such places. In consideration of environmental pollution and vast availability of these scrap material we have used Lathe steel scrap as partial addition to concrete at 1%, 1.5%, 2% by volume proportions for M30 grade concrete and the properties like compressive, split tensile, bending, flexural beam strength, modules of elasticity are tested for 7 and 28 days and compared with noramal M30 concrete

scholarly journals Fibrous Reinforcing System to Increase the Shear Resistance of High Strength Concrete

2008 ◽  
Vol 587-588 ◽  
pp. 887-891
Author(s):  
Simão Santos ◽  
Joaquim Barros ◽  
Lúcio Lourenço
Keyword(s):  
High Strength Concrete ◽  
High Strength ◽  
Shear Resistance ◽  
Shear Loading ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Experimental Program ◽  
Compression Tests ◽  
Strength Concrete ◽  
High Strength Fiber

The available research has evidenced that discrete steel fibers can increase significantly the shear resistance of High Strength Concrete (HSC) structural elements when High Strength Fiber Reinforced Concrete (HSFRC) is designed in such way that fiber reinforcing mechanisms are optimized. In general, the increase of the concrete compressive strength is associated to an increase of its compactness, resulting benefits in terms of durability, but a strong concern emerges related to the integrity of this material, since it fails in a too brittle mode when submitted to high temperatures. To contribute for the knowledge about the benefits provided by discrete steel fibers when added to HSC applied to laminar structures, an experimental program composed of slab strips submitted to shear loading configuration was carried out. Uniaxial compression tests with cylinders of 150 mm diameter and 300 mm height, and bending tests with 600×150×150 mm3 beams were executed to assess the compression and bending behavior of the developed HSFRC. To evaluate the influence of the percentage of fibers in the shear resistance of laminar structures, three point loading tests with slab strips of 800×170×150 mm3 dimensions were performed. Taking the obtained experimental results, the applicability of the formulation proposed by RILEM TC 162-TDF was evaluated. Test results showed that, even with relative low dosages of steel fibers, the increment in shear resistance was significantly increased. The main obtained results in the research program are presented and discussed in this paper.

PYROMET 600

Alloy Digest ◽  
1969 ◽  
Vol 18 (12) ◽  
Keyword(s):  
Base Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Nuclear Industry ◽  
Temperature Performance ◽  
Resistance To Oxidation ◽  
Technology Corporation ◽  
Carpenter Technology Corporation ◽  
Nickel Base

Abstract Pyromet 600 is a corrosion-resisting nickel-base alloy, having a very desirable combination of high strength and workability, both hot and cold. It has high strength and resistance to oxidation at high temperatures. It is designed to meet the highest quality of the nuclear industry. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-149. Producer or source: Carpenter Technology Corporation.

Evaluation of quality of welded joints of high-strength railway rails of modern production taking into account the requirements of ukrainian and european standards

2020 ◽  
Vol 2020 (7) ◽  
pp. 2-10
Author(s):  
S.I. Kuchuk-Yatsenko ◽  
◽  
E.V. Antipin ◽  
O.V. Didkovskyi ◽  
V.I. Shvets ◽  
...  
Keyword(s):  
Welded Joints ◽  
High Strength ◽  
European Standards

scholarly journals Manufacturing and development of a bolted GFRP flange joint for oil and gas applications

2021 ◽  
pp. 095440542198951
Author(s):  
Muhsin Aljuboury ◽  
Md Jahir Rizvi ◽  
Stephen Grove ◽  
Richard Cullen
Keyword(s):  
Pressure Vessel ◽  
Oil And Gas ◽  
Polyester Resin ◽  
High Strength ◽  
Adhesively Bonded ◽  
Acceptable Quality ◽  
Composite Pipe ◽  
And Performance ◽  
Composite Pipes

The goal of this experimental study is to manufacture a bolted GFRP flange connection for composite pipes with high strength and performance. A mould was designed and manufactured, which ensures the quality of the composite materials and controls its surface grade. Based on the ASME Boiler and Pressure Vessel Code, Section X, this GFRP flange was fabricated using biaxial glass fibre braid and polyester resin in a vacuum infusion process. In addition, many experiments were carried out using another mould made of glass to solve process-related issues. Moreover, an investigation was conducted to compare the drilling of the GFRP flange using two types of tools; an Erbauer diamond tile drill bit and a Brad & Spur K10 drill. Six GFRP flanges were manufactured to reach the final product with acceptable quality and performance. The flange was adhesively bonded to a composite pipe after chamfering the end of the pipe. Another type of commercially-available composite flange was used to close the other end of the pipe. Finally, blind flanges were used to close both ends, making the pressure vessel that will be tested under the range of the bolt load and internal pressure.

scholarly journals Resistance of an Optimized Ultra-High Performance Fiber Reinforced Concrete to Projectile Impact

Buildings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 63
Author(s):  
Anna L. Mina ◽  
Michael F. Petrou ◽  
Konstantinos G. Trezos
Keyword(s):  
Reinforced Concrete ◽  
High Performance ◽  
High Performance Concrete ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Fiber Reinforced ◽  
Depth Of Penetration ◽  
Projectile Impact ◽  
High Performance Fiber

The scope of this paper is to investigate the performance of ultra-high performance fiber reinforced concrete (UHPFRC) concrete slabs, under projectile impact. Mixture performance under impact loading was examined using bullets with 7.62 mm diameter and initial velocity 800 m/s. The UHPFRC, used in this study, consists of a combination of steel fibers of two lengths: 6 mm and 13 mm with the same diameter of 0.16 mm. Six composition mixtures were tested, four UHPFRC, one ultra-high performance concrete (UHPC), without steel fibers, and high strength concrete (HSC). Slabs with thicknesses of 15, 30, 50, and 70 mm were produced and subjected to real shotgun fire in the field. Penetration depth, material volume loss, and crater diameter were measured and analyzed. The test results show that the mixture with a combination of 3% 6 mm and 3% of 13 mm length of steel fibers exhibited the best resistance to projectile impact and only the slabs with 15 mm thickness had perforation. Empirical models that predict the depth of penetration were compared with the experimental results. This material can be used as an overlay to buildings or to construct small precast structures.

scholarly journals THE INFLUENCE OF TENSILE RESISTANCE OF ULTRA HIGH STRENGTH FIBER REINFORCED CONCRETE ON FLEXURAL FAILURE

2008 ◽  
Vol 64 (3) ◽  
pp. 435-448
Author(s):  
Tetsuo KAWAGUCHI ◽  
Makoto KATAGIRI ◽  
Kazuyoshi SHIRAI ◽  
Junichiro NIWA
Keyword(s):  
Reinforced Concrete ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Flexural Failure ◽  
High Strength Fiber

Benefits of Using Diamond Dies for Cold Alternate Drawing of Magnesium Alloys

2016 ◽  
Vol 716 ◽  
pp. 13-21 ◽  
Author(s):  
Vladimir Stefanov Hristov ◽  
Kazunari Yoshida
Keyword(s):  
Magnesium Alloy ◽  
Weight Ratio ◽  
High Strength ◽  
Wire Drawing ◽  
High Ductility ◽  
Element Analysis ◽  
The Wire ◽  
Shearing Strain ◽  
Drawing Method

In recent years, due to its low density and high strength/weight ratio, magnesium alloy wires has been considered for application in many fields, such as welding, electronics, medical field (for production of stents). But for those purposes, we need to acquire wires with high strength and ductility. For that we purpose we proposed alternate drawing method, which is supposed to highly decrease the shearing strain near the surface of the wire after drawing, by changing the direction of the wire drawing with each pass and thus acquiring high ductility wires.We have done research on the cold alternate drawing of magnesium alloy wires, by conducting wire drawing of several magnesium wires and testing their strength, hardness, structure, surface and also finite element analysis, we have proven the increase of ductility at the expense of some strength.In this research we are looking to further improve the quality of the drawn wires by examining the benefits of using diamond dies over tungsten carbine dies. Using the alternate drawing method reduces the strength of the drawn wires and thus lowering their drawing limit. By using diamond dies we are aiming to decrease the drawing stress and further increase the drawing limit of the alternate drawn wires and also improve the quality of the finishing surface of the wires. With this in mind we are aiming to produce a good quality wire with low diameter, high ductility, high strength and fine wire surface.

Shear Behavior of RC Beams Using Ultra High Strength Fiber Reinforced Concrete Precast Formworks

2012 ◽  
Vol 18 (31) ◽  
pp. 222-229
Author(s):  
Chunyakom Sivaleepunth ◽  
Toshimichi Ichinomiya ◽  
Shinichi Yamanobe ◽  
Tetsuya Kono ◽  
Naoki Sogabe ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
High Strength ◽  
Shear Behavior ◽  
Fiber Reinforced Concrete ◽  
Rc Beams ◽  
Fiber Reinforced ◽  
High Strength Fiber
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