Improving the compressive behavior of RC walls reinforced with ferrocement composites under centric and eccentric loading

Erfan, Abeer M.; El-Naby, R. M. Abd; Elhawary, Ammar; El-Sayed, Taha A.

doi:10.1016/j.cscm.2021.e00541

Cited by 9 publications

(5 citation statements)

References 8 publications

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“…Ferrocement displayed exceptional toughness, fracture control, and impact strength as a construction material, due to the material's tight spacing and homogenous reinforcement dispersion. Many researchers have researched this material's mechanical and physical properties, and diverse test results are available to define its design and construction performance criteria [10][11][12][13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Studies on Flexural Behavior of GGBS-Based Geopolymer Ferrocement Beams

et al. 2023

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The ferrocement structural concept has been shown to offer exceptional mechanical properties in terms of toughness, fracture control, and impact resistance, which are achieved by tight spacing and homogeneous reinforcement dispersion within the matrix. The flexure behavior of geopolymer ferrocement beams under axial flexural stress is being explored experimentally and computationally in this present work. Under flexural loads, nine samples of geopolymer ferrocement beams 150 mm thick, 75 mm wide, and 1700 mm long were tested to failure. The reinforcing steel bars and wire meshes, as well as the quantity of wire mesh layers, were the key factors studied. The initial crack load, ultimate failure load, and mid-span deflection with various loading phases, cracking patterns, energy absorption, and ductility index were all studied in relation to the behavior. In terms of carrying capacity, absorbing energy, and ductility, welded steel wire mesh beams fared better than other materials. Using ANSYS-19 software, nonlinear finite element analysis (NLFEA) was carried out to demonstrate the behavior of composite ferrocement geopolymer beams. The ensuing experimental and numerical data demonstrated that the degree of experimental value estimation supplied by the FE simulations was sufficient. It is crucial to demonstrate that, in comparison to control specimens, the increase in strength of specimens reinforced with tensar meshes was reduced by around 15%. Doi: 10.28991/CEJ-2023-09-03-010 Full Text: PDF

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Studies on Flexural Behavior of GGBS-Based Geopolymer Ferrocement Beams

et al. 2023

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“…Kaushik et al [18] executed a study on ferrocement RC columns and realized that the ferrocement enhanced the strength and ductility of the columns for centric and eccentric compressive loads. Similarly, various studies have been undertaken on different ferrocement structural elements under centric and eccentric compressive loads [19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Axial Compression Behavior of Ferrocement Geopolymer HSC Columns

El-Sayed

2021

Polymers

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Geopolymer concrete (GC) is a substantial sort that is created by utilizing metakaolin, ground granulated blast furnace slag (GGBS), silica fumes, fly ash, and other cementitious materials as binding ingredients. The current study concentrated on the structural behavior of the ferrocement geopolymer HSC-columns subjected to axial loading and produced using rice straw ash (RSA). The major goal of this research was to use the unique features of the ferrocement idea to manufacture members that function as columns bearing members. As they are more cost-effective and lower in weight, these designed elements can replace traditional RC members. The study also intended to reduce the cost of producing new parts by utilizing low-cost materials such as light weight expanded and welded wire meshes, polyethylene mesh (Tensar), and fiber glass mesh. For this purpose, an experimental plan was conducted and a finite element prototype with ANSYS2019-R1 was implemented. Nine geopolymer ferrocement columns of dimensions of 150 mm × 150 mm × 1600 mm with different volume-fraction and layers as well as a number of metallic and nonmetallic meshes were examined under axial compression loading until failure. The performance of the geopolymer columns was examined with consideration to the mid-span deflection, ultimate failure load, first crack load with various phases of loading, the cracking patterns, energy absorption and ductility index. Expanded or welded ferrocement geopolymer columns showed greater ultimate failure loads than the control column. Additionally, using expanded or welded columns had a considerable effect on ultimate failure loads, where the welded wire mesh exhibited almost 28.10% compared with the expanded wire mesh. Columns reinforced with one-layer of nonmetallic Tensar-mesh obtained a higher ultimate failure load than all tested columns without concrete cover spalling. The analytical and experimental results were in good agreement. The results displayed an accepted performance of the ferrocement geopolymer HSC-columns.

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“…In which, RPC models have less deflection values in comparison with those of NSC models [17,28]. 1-The cracks developed due to an increase in the internal stress at the tension zone based on the ACI-318 [4] requirement for modulus of rupture as �0.62 ′c and the concrete crush occurs when the internal stress at the compression zone become more than the characteristic compressive strength. 2-The strength of the NSC model is less than that of the RPC model.…”

Section: Resultsmentioning

confidence: 99%

“…In general, when a concrete member is subjected to load, the deformation gradually increases with time and it may be many times greater than the instant value. Usually, RC walls are commonly used as structural elements in locations where they are subjected to axial loads, lateral loads and moments [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Structural Behavior of Precast High Strength Reinforced Concrete Vierendeel Truss Walls: A Numerical Approach

Al-Maliki¹,

Al-Balhawi²,

Al-Taai³

et al. 2021

GEOMATE

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Reinforced concrete (RC) walls have been widely used in different types of civil engineering projects. Therefore, their behaviour under several kinds of loading is of utmost importance. In this study, the main objective is to investigate the behaviour of RC Vierendeel walls under the applied loads by employing numerical analyses for the studied walls. Several assumptions are adopted in these analyses to simulate the actual behaviour of Vierendeel walls, which were experimentally studied in previous investigations. The numerical results showed that the simulated numerical behaviour has a very good agreement with the experimental results of the tested models. Statically, this agreement is validated and verified in terms of the mean and standard deviation values. Therefore, the proposed numerical models and assumptions are the suitable ones to simulate the structural behaviour of these walls under the applied conditions. The structural behaviour is presented in terms of load capacity, crack pattern, deflection, and mode of failure. The results show that the reactive powder concrete (RPC) models have more resistance under the applied load in terms of deflection, cracks, and ductility index than the models of normal strength concrete (NSC). Also, the openings are the main reason for the diagonal cracking at the corners of the RC walls. The deflection in all models is a single curvature. The mode of failure for all models is shear.

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Improving the compressive behavior of RC walls reinforced with ferrocement composites under centric and eccentric loading

Cited by 9 publications

References 8 publications

Experimental and Numerical Studies on Flexural Behavior of GGBS-Based Geopolymer Ferrocement Beams

Experimental and Numerical Studies on Flexural Behavior of GGBS-Based Geopolymer Ferrocement Beams

Axial Compression Behavior of Ferrocement Geopolymer HSC Columns

Structural Behavior of Precast High Strength Reinforced Concrete Vierendeel Truss Walls: A Numerical Approach

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