Use of permanent ferrocement forms for concrete beam construction

Tawab, Alaa Abdel; Fahmy, Ezzat H.; Shaheen, Yousry B. I.

doi:10.1617/s11527-012-9834-1

Cited by 18 publications

(8 citation statements)

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“…U-shaped ferrocement with 98 expanded steel mesh exhibits higher first crack load, ultimate load, and serviceability load when compared with beams reinforced with EX156 expanded steel mesh and then specimens reinforced with woven mesh [18]. e beams with lightweight brick have higher first crack load and ultimate load when compared with conventional beams with welded wire mesh.…”

Section: Introductionmentioning

confidence: 94%

[Retracted] Flexural Behaviour of Chicken Mesh Ferrocement Laminates with Partial Replacement of Fine Aggregate by Steel Slag

Sridhar¹,

Dhanapal²,

Deivasigamani

et al. 2021

Advances in Materials Science and Engineering

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Bending tests were conducted on ferrocement laminates containing chicken mesh and steel slag. The fundamental goal of the examination was to investigate the effects of partial substitution of fine aggregate by steel slag in cement mortar combining chicken mesh of different volume fractions as reinforcement in thin ferrocement laminates. The following variables were investigated: (a) volume fraction of chicken mesh as 0.94%, 1.88%, 2.82%, and 3.77% and (b) level of steel slag substitution from 0% to 50% by weight fine aggregate. Results show that ferrocement laminates with chicken mesh of volume fractions of 3.77% and 30% substitution of fine aggregate with steel slag display better performance in terms of load deflection behaviour, first crack load, ultimate load, energy absorption, and ductility ratio when related with other specimens. An analytical model has been proposed to predict the ultimate moment carrying capacity of ferrocement laminates under flexure to validate the experimental results.

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Section: Introductionmentioning

confidence: 94%

[Retracted] Flexural Behaviour of Chicken Mesh Ferrocement Laminates with Partial Replacement of Fine Aggregate by Steel Slag

Sridhar¹,

Dhanapal²,

Deivasigamani

et al. 2021

Advances in Materials Science and Engineering

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“…This paper presents a continuation of the investigation reported by Tawab et al (2012). In the present investigation single and double layers of welded wire and X8 expanded steel meshes are used to reinforce the U-shaped forms.…”

Section: Introductionmentioning

confidence: 85%

“…Recently Abdel Tawab et al (2012) has presented the results of an experimental investigation to examine the feasibility and effectiveness of using precast U-shaped ferrocement laminates as permanent forms for construction of reinforced concrete beams. The precast permanent ferrocement forms were proposed as a viable alternative to the commonly used wooden and/or steel temporary forms.…”

Section: Introductionmentioning

confidence: 99%

Applying the Ferrocement Concept in Construction of Concrete Beams Incorporating Reinforced Mortar Permanent Forms

Fahmy

Shaheen

Abdelnaby³

et al. 2014

Int J Concr Struct Mater

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This paper presents the results of an investigation aimed at developing reinforced concrete beams consisting of precast permanent U-shaped reinforced mortar forms filled with different types of core materials to be used as a viable alternative to the conventional reinforced concrete beam. To accomplish this objective, an experimental program was conducted and theoretical model was adopted. The experimental program comprised casting and testing of thirty beams of total dimensions 300 9 150 9 2,000 mm consisting of permanent precast U-shaped reinforced mortar forms of thickness 25 mm filled with the core material. Three additional typical reinforced concrete beams of the same total dimensions were also cast to serve as control specimens. Two types of single-layer and double-layers steel meshes were used to reinforce the permanent U-shaped forms; namely welded wire mesh and X8 expanded steel mesh. Three types of core materials were investigated: conventional concrete, autoclaved aerated lightweight concrete brick, and recycled concrete. Two types of shear connections between the precast permanent reinforced mortar form and the core material were investigated namely; adhesive bonding layer between the two surfaces, and mechanical shear connectors. The test specimens were tested as simple beams under three-point loadings on a span of 1,800 mm. The behavior of the beams incorporating the permanent forms was compared to that of the control beams. The experimental results showed that better crack resistance, high serviceability and ultimate loads, and good energy absorption could be achieved by using the proposed beams which verifies the validity of using the proposed system. The theoretical results compared well with the experimental ones.

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“…Prior researches have demonstrated that using SM as circumferential confinement for RC columns increases the strain value at the failure and the column ductility, and distributes stress regularly. Additionally, SM boosts the capacity of energy absorption and changes the mode of failure from a brittle pattern to a ductile one [14][15][16][17]. Kim and Choi [18] examined a repairing technique for deteriorated RC columns due to the earthquake.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of circular RC columns using steel mesh as internal or external confinement under the influence of axial compression loading

Emara

Rizk

Mohamed

et al. 2021

Frattura Ed Integrità Strutturale

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Reinforced concrete (RC) columns cannot get supreme confinement by using the customary steel stirrups reinforcement because of the requirements for the spacing distances between the stirrups in addition to concrete continuance trouble. For this, Steel Mesh (SM) externally wrapped around the outer perimeter of the column as contributory confinement are being widely used due to its features. Limited tests focused on using SM for the internal confinement around the reinforcing cage of RC columns. Moreover, no experimental comparison was presented between RC columns internally and externally confined using SM. This paper investigates experimentally the behavior of circular RC columns confined internally or externally by SM. Six short RC columns have been subjected to axial loading until failure. The main studied parameters were SM schemes, number of SM wraps, SM position (internally or externally), and the steel stirrups existence. Results demonstrated that SM could decrease the crack opening, diminish the concrete spalling, increase the maximum failure load, and enhance the ductility, energy absorption, and column stiffness. Furthermore, the partially internal confinement using two wraps of SM around the steel ties presented the maximum capacity with reasonable ductility. In general, internally confined columns showed better behavior than the externally confined one.

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Use of permanent ferrocement forms for concrete beam construction

Cited by 18 publications

References 0 publications

[Retracted] Flexural Behaviour of Chicken Mesh Ferrocement Laminates with Partial Replacement of Fine Aggregate by Steel Slag

[Retracted] Flexural Behaviour of Chicken Mesh Ferrocement Laminates with Partial Replacement of Fine Aggregate by Steel Slag

Applying the Ferrocement Concept in Construction of Concrete Beams Incorporating Reinforced Mortar Permanent Forms

Enhancement of circular RC columns using steel mesh as internal or external confinement under the influence of axial compression loading

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