International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 06 | Jun 2024
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p-ISSN: 2395-0072
Self-compacting Concrete Supplemented with Steel Fibers and Mineral Additives to Prevent Corrosion. Arvind Kumar1, Mr. K. S. Ramaiah2, Mr. Yogeshwar Sahu3 1Research Scholar, M. Tech. (Structural Engg.) 2Assistant Professor, Department of Civil Engineering, 3Assistant Professor, Department of Civil Engineering, Jhada Sirha Government Engineering College, Jagdalpur Chhattisgarh India.
---------------------------------------------------------------------***-------------------------------------------------------------------2. AIM AND OBJECTIVE:
Abstract - Concrete that self-compacts (SCC) fill almost entirely while flowing through the formwork because of its inherent weight. It also completely fills in all gaps and voids in structural members with a high proportion of reinforcement. Investigating the new and toughened properties of steel fiber SCC is the aim of the research that is being presented. The findings showed that the compressive and tensile strengths of self-compacting concrete were impacted by the novel qualities of SCC with steel fiber. There was an ideal steel fiber content of 1.5-2.0%, at which better performance was attained for the two aforementioned features. In comparison to the plain mix, all fiber mixtures showed greater flexural, splitting, and tensile strengths at all curing ages. As the fiber content rose, the strength also rose.
Corrosion is eliminated by the invention of selfcompacting concrete with mineral additives.
To investigate how steel fiber affects the concrete's strength characteristics and examine the compressive, tensile, and flexural strengths of the concrete and draw conclusions about how strong conventional and self-compacting concrete are in these areas.
3. LITRATURE REVIEW:
[Aslani and Samali 2014] performed experiments on SCC with steel, polypropylene (PP) and hybrid fibres. They found that average compressive strength of hybrid FRSCC was more than SCC with steel and PP fibres. Average modulus of rupture (MOR) for SCC reinforced with steel fibres was found to be more than that of SCC with PP and hybrid fibres. The also concluded that compressive strength and MOR properties of FRSCC are decreased with time.
[Krishna Rao, et al, 2010] studied the technical challenges related to the unevenly distribution of steel fibres in the SSC. Commonly placed in the course of concrete stream, due to this form the strength of concrete improves considerably and by use of fibre and its short-term arrangement could enhance the strength of the beam depending on the path of concrete movement. However, the performance is reduced compared to the standard and that is why large plasticizers are needed in large quantities.
[El-Dieb, et al, 2008] researched the installation of Fibers and its advantages through its addition in the SCC, Fibers bridges prevent and promote its spread inside the concrete and ultimately increase the strength and strength of concrete flexibility. Tests demonstrate that it is feasible to retain SCC properties whilst employing fibre reinforcement. The high fibre matter that can be applied without
Key Words: Conventional concrete, Self-compacting concrete, mineral additives, steel fiber, Compressive Tensile and Flexural strength, Corrosion.
1.INTRODUCTION: Self-compacting concrete (SCC) is a kind of concrete that may provide good compaction without the need for outside vibration by flowing under its own weight. Moreover, SCC's cohesive qualities provide it with good resistance to bleeding and segregation. Steel fibre have been used in traditional concrete in place of bar reinforcement to reduce fracture width, boost tensile and flexural strength, and enhance postcracking behaviour. Improved crack growth resistance, increased surface roughness of individual fractures, and a higher probability of crack branching and multiple crack formation are all effects of steel fibre reinforcing on the way cracks develop in concrete. Fiber Requirement in SCC: To improve post-cracking behavior, reduce crack width, boost tensile and flexural strength, and substitute bar reinforcement in traditional concrete, steel fibers have been used. Concrete crack formation can be affected by steel fiber reinforcing, which can lead to enhanced resistance to fracture growth, rougher surfaces for individual cracks, and a higher chance of multiple cracks developing and branching out.
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