scholarly journals The Flexural Behavior of Ferrocement Composite Hollow-Cored Sections

2021 ◽  
pp. 26-41
Author(s):  
Yousry B. I. Shaheen ◽  
Zeinab A. Etman ◽  
Aya M. Elrefy
Keyword(s):  
Reinforced Concrete ◽  
Ultimate Load ◽  
Steel Wire ◽  
Wire Mesh ◽  
Flexural Behavior ◽  
Metal Mesh ◽  
Cracking Behavior ◽  
Poor Countries ◽  
Steel Mesh ◽  
Steel Wire Mesh

This study will study the influence of several types of metal and non-metal mesh reinforcement materials on the flexural behavior of reinforced concrete hollow-cored sections as a viable alternative to traditional reinforced concrete sections. Compared with the traditional reinforced concrete part, the weight of the test part is lighter. In order to strengthen these hollow-cored sections, three types of steel mesh, Welded wire mesh, expanded steel wire mesh and tenax mesh with various layers are used. An intensive experiment plan was carried out on the test samples. Ten slabs with dimensions of 500 mm*2000 mm*120 mm were cast and tested until they failed under flexural load. Record and observe the deformation characteristics and cracking behavior of each sample during the loading process. According to the results, high ultimate load and serviceability load, crack resistance control, high ductility and strong energy absorption characteristics have been obtained. This has the chance to be a true construction benefit to developed and poor countries. The use of double-layer of expanded steel mesh as the additional reinforcement of the main steel can achieve the best performance of the reinforced concrete hollow-cored section.

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.

Flexural Strength of Reinforced Concrete Two way Slabs Strengthened and Repaired by High Strength Ferrocement at Tension Zone

2017 ◽  
Vol 5 (1) ◽  
pp. 104-119
Author(s):  
Mazen D. Abdullah ◽  
Mustafa Sheriff ◽  
Aqeel Hateem
Keyword(s):  
Reinforced Concrete ◽  
Ultimate Load ◽  
Concrete Slab ◽  
High Strength ◽  
Wire Mesh ◽  
Flexural Behavior ◽  
Tension Zone ◽  
Reinforced Concrete Slab ◽  
Concentrated Load ◽  
Simply Supported

     This paper presents a study of the flexural behavior of strengthened and repaired reinforced concrete two slabs by ferrocement layers.  This study included testing 11 simply supported two way slabs, which include 1 control slabs, 8 strengthened slabs and 2 repaired slabs. In the strengthened slabs the effect of the thickness of ferrocement layers, the compressive strength for mortar and number of wire mesh layers of ferrocement on the ultimate load, mid span deflection at ultimate load and intensity of cracks was investigate. In the repaired part the slabs were loaded to (74 %) of measured ultimate load of control slab. The effect of connection method between repaired slabs and ferrocement jacket on the ultimate load, mid span deflection at ultimate load and intensity of cracks was examined. All reinforced concrete slab specimens were designed of the same dimensions and reinforce identically to fail in flexure. All slabs have been tested in simply supported conditions subjected to central concentrated load. The experimental results show that the ultimate loads are increased by about (4.6-19.2%) for the slabs strengthened with ferrocement with respect to the unstrengthened reinforced concrete slab (control slab).

scholarly journals Study of Flexural Behaviour of Warp Knitted Reinforced Ferrocement Composites

2019 ◽  
Vol 27 (4(136)) ◽  
pp. 94-101
Author(s):  
S. Paramasivam ◽  
M. Rameshkumar ◽  
R. Malathy ◽  
C. Prakash
Keyword(s):  
High Performance ◽  
Ultimate Load ◽  
Steel Wire ◽  
Absorption Capacity ◽  
Wire Mesh ◽  
Flexural Properties ◽  
Energy Absorption Capacity ◽  
Knit Fabrics ◽  
Steel Wire Mesh ◽  
Mesh Structures

This paper presents the effect of warp knit textile reinforcement in ferrocement laminates. In general, steel wire mesh is used as ferrocement reinforcement, which is often known as chicken mesh. The need for the replacement of steel mesh is the problem of corrosion, which reduces the durability of ferrocement laminate. High performance synthetic fibres and fabrics are constantly used in various research works as reinforcement in concrete. In this paper, an attempt was made to incorporate three different nylon warp knit mesh structures in the place of chicken mesh. Ferrocement composites were produced with chicken mesh and nylon warp knit fabrics. The flexural properties of ferrocement laminates were analysed in terms of the first crack load, ultimate load, energy absorption capacity and ductility factor. Nylon square mesh with 3 layers in the reinforcement has a 2.5 kN first crack load and 3.36 kN ultimate load, which is higher than chicken mesh reinforcement in ferrocement laminate. The results show that there is an improvement in the flexural properties of ferrocement laminates reinforced with a nylon warp knit structure. The flexural parameters have a direct relationship with the number of layers used in the reinforcement.

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