scholarly journals Retrofitting and Strengthening of Reinforced Concrete Damaged Beams using jacketing of Steel Wire Mesh with Steel Plates

2015 ◽  
Vol V4 (04) ◽  
Author(s):  
Abd-Elhamed, M. K. ◽  
Keyword(s):  
Reinforced Concrete ◽  
Steel Wire ◽  
Wire Mesh ◽  
Steel Plates ◽  
Damaged Beams ◽  
Steel Wire Mesh

scholarly journals An Experimental Study on Strengthening of Reinforced Concrete Flexural Members using Steel Wire Mesh

2017 ◽  
Vol 4 (1) ◽  
pp. 31-37 ◽  
Author(s):  
Hamza Salim Mohammed Al Saadi ◽  
Hoby P. Mohandas ◽  
Aravind Namasivayam
Keyword(s):  
Reinforced Concrete ◽  
Structural Engineering ◽  
Steel Wire ◽  
Wire Mesh ◽  
Steel Plates ◽  
Advanced Materials ◽  
Rc Beams ◽  
Flexural Members ◽  
Frp Composites ◽  
Steel Wire Mesh

Abstract One of the major challenges and contemporary research in the field of structural engineering is strengthening of existing structural elements using readily available materials in the market. Several investigations were conducted on strengthening of various structural components using traditional and advanced materials. Many researchers tried to enhance the reinforced concrete (RC) beams strength using steel plate, Glass and Carbon Fibre Reinforced Polymers (GFRP & CFRP). For the reason that high weight to the strength ratio and compatibility in strength between FRP composites and steel bars, steel plates and GFRP and CFRP composites are not used for strengthening works practically. Hence, in this present work the suitability of using wire mesh for the purpose of strengthening the RC flexural members is studied by conducting experimental works. New technique of strengthening system using wire mesh with a view to improve sectional properties and subsequently flexural strength of RC beams is adopted in this work. The results for experimental and theoretical analysis were compared and found that good correlation exists between them. The experimental results indicate that RC beams strengthened with steel wire mesh are easy technique for strengthening of existing flexural members.

scholarly journals Enhancing the Punching Load Capacity of Reinforced Concrete Slabs Using an External Epoxy-Steel Wire Mesh Composite

Fibers ◽  
2019 ◽  
Vol 7 (8) ◽  
pp. 68
Author(s):  
Abdulkhaliq A. Jaafer ◽  
Raid AL-Shadidi ◽  
Saba L. Kareem
Keyword(s):  
Reinforced Concrete ◽  
Concrete Slab ◽  
Load Capacity ◽  
Steel Wire ◽  
Wire Mesh ◽  
Concrete Slabs ◽  
Reinforced Concrete Slab ◽  
Concentrated Load ◽  
Reinforced Concrete Slabs ◽  
Steel Wire Mesh

The present experimental work investigates the applicability and performance of a new strengthening method for concrete slabs, intended to increase their punching resistance using combination layers of steel wire mesh with epoxy attached to the concrete slabs’ tension face. Six simply supported square reinforced concrete slab specimens were tested up to failure under a central concentrated load. The main parameters in the study are the concrete compressive strength (30 MPa and 65 MPa) and the configuration of a bundle externally fixed to the tension side of the tested slabs. The experimental results appeared to greatly enhance the performance of the specimens, as they were externally strengthenined under this new method. When compared to the control slabs, the punching load and stiffness of the strengthened slabs increased up to 28% and 21%, respectively.

scholarly journals Effectiveness of Prolonged Air-Recuring on Strength of Fire Damaged RC Columns

2019 ◽  
Vol 5 (10) ◽  
pp. 2207-2220
Author(s):  
Muhammad Adeel Ehsan ◽  
Muhammad Yaqub ◽  
M. Uzair Khan ◽  
M. Umar Abdur rehman Amir ◽  
Iqrar Hussain
Keyword(s):  
Reinforced Concrete ◽  
Steel Wire ◽  
Compressive Loading ◽  
Single Layer ◽  
Wire Mesh ◽  
Rc Columns ◽  
Temperature Levels ◽  
Steel Wire Mesh ◽  
Original Strength ◽  
Cfrp Wrapping

In this study, the effect of post-fire prolonged air-recuring on the recovery of strength of reinforced concrete was investigated after exposing to elevated temperature levels varying from 300 ºC to 900 ºC. The main objective of the paper is to find the effectiveness of prolonged air-recuring on strength of fire damaged RC columns. In order to achieve this, a total of 24 reinforced concrete circular columns having size  200 1200 mm were casted and tested under compressive loading. Eighteen specimens were heated in an electric furnace such that six specimens at each temperature level i.e. 300ºC, 500 ºC and 900 ºC. After heating, specimens were allowed to cool down naturally at ambient temperature and then specimens were air-recured in open environment (high humidity) following by repairing of respective specimens with various confinement techniques. After post fire prolonged air-recuring, test results showed that decrease in axial compressive at all temperature levels was less compared to values reported in literature for corresponding temperatures. This confirms the recovery of microstructure and thus increase in strength of post heated reinforced concrete circular columns due to prolonged air-recuring. It has been observed that both the confinement techniques i.e.  single layer of CFRP only and epoxy injection, steel wire mesh filled with epoxy resin mortar along with CFRP wrapping restored the original strength or even more of air-recured post heated reinforced concrete circular columns compared to that of un-heated control specimens or even more. 

scholarly journals An Experimental Study on Strengthening of Reinforced Concrete Flexural Members using Steel Wire Mesh

2021 ◽  
Vol 9 (VII) ◽  
pp. 1706-1710
Author(s):  
Prof. S. R. Suryawanshi
Keyword(s):  
Reinforced Concrete ◽  
Bending Strength ◽  
Experimental Testing ◽  
Steel Wire ◽  
Real Life ◽  
Wire Mesh ◽  
Bottom Line ◽  
Control Beam ◽  
Reinforced Beams ◽  
Steel Wire Mesh

Reinforcing reinforced concrete (RC) beams with galvanized welded steel wire mesh is one of the latest technologies applied in retrofitting. For each sample, the experimental evaluation of 18 small reinforced concrete beam samples with a total length of 1200 mm was carried out to study the bending strength under static load conditions. Experimental testing has been carried out to the activated failure mode, with 11 reinforced samples, 4 integrally cast control beams and three original control beams. Based on the test variables, namely SWM characteristics and connection mechanism, the reinforced beams are divided into two groups A and B. This study also clarified the bending resistance, ductility, stiffness, crack width and deflection. According to the test results obtained, all reinforced beams are designed to fail ductilely. The first group of reinforced beams recovered to an average of 110% of the bearing capacity of the original control beam, while the second group of reinforced beams recovered to an average of 163%. Furthermore, it was found that the reinforcement beam functions in the same way as the general control beam and works as a unit. Therefore, the bottom line is that this reinforcement technology can be used confidently in real-life applications, especially in low- cost buildings.

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