Flexural Behaviour of Reinforced Lightweight Foamed Mortar Beams and Slabs

Lee, Yee Ling; Lim, Jae Han; Lim, Siong Kang; Tan, Cher Siang

doi:10.1007/s12205-017-1822-0

Cited by 17 publications

(10 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The specimens were preloaded to ensure that the instrument was functioning properly and to avoid any poor contact [17]. The specimens were loaded monotonically under displacement control at a loading rate of 0.01 mm/s [18]. The load was applied to the specimen through two loading steel plates at the top of each specimen [18].…”

Section: Testing Setupmentioning

confidence: 99%

See 1 more Smart Citation

Experimental and Numerical Study of the Strength Performance of Deep Beams with Perforated Thin Mild Steel Plates as Shear Reinforcement

et al. 2023

Self Cite

View full text Add to dashboard Cite

This study aims to investigate a new shear reinforcement method which utilizes thin mild steel (TMS) plates as shear reinforcement in deep beams to replace conventional reinforcement. Thirteen reinforced concrete deep beam specimens with three different plate thicknesses and four varying perforated hole arrangements on the TMS plates were experimentally tested to determine the load-carrying capacity and crack pattern. The experimental results indicate that the 2.0 mm thick TMS plate has the highest load-carrying capacity. Among the four different hole arrangements on the TMS plates, the perforated plates with a three-column hole arrangement show the best performance in terms of load-carrying capacity, with a 2.9% increment against the control beam specimen. The specimens also demonstrated compatible elastic stiffness with the control beam that used conventional shear links. This shows that TMS plates have the potential to replace conventional shear links in deep beams. This proposed method also changed the failure mode from conventional diagonal shear tension failure to a combination of flexural failure and shear deformation. A numerical model was developed and was found to have a good correlation with the experimental results, demonstrating potential for use in future parametric investigations on deep beams and cost reduction in future experimental work.

show abstract

Section: Testing Setupmentioning

confidence: 99%

“…The specimens were loaded monotonically under displacement control at a loading rate of 0.01 mm/s [18]. The load was applied to the specimen through two loading steel plates at the top of each specimen [18]. The centerto-center distance between the two loading plates was set at 300 mm.…”

Section: Testing Setupmentioning

confidence: 99%

Experimental and Numerical Study of the Strength Performance of Deep Beams with Perforated Thin Mild Steel Plates as Shear Reinforcement

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…Also, the researchers of Lee et al ( 2017) [4] have conducted their study on slabs and beams of foam concrete, which was produced using a type of lightweight foam mortar, and the density of concrete ranged from 1700 to 1800 kg/m 3 . Accordingly, the concrete's compressive strength was 20 MPa.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Lightweight Polystyrene Foam Concrete Flat Slabs under Fire Condition

Alzara

Riad

AbdelMongy

et al. 2022

Advances in Civil Engineering

View full text Add to dashboard Cite

Lightweight reinforced concrete (LWC) is widely used in various reinforced concrete (RC) applications, such as its use in diverse types of reinforced concrete slabs. The aim of this study is to analyze the behavior of reinforced foam concrete slabs (flat slab type) that are exposed to fire conditions under the influence of eccentric loads as well as concentric loads. This analysis has been done using the finite element method by a (ANSYS) software program. The validity of the adopted models was verified through comparison with a previous experimental study. The studied specimens were eleven reinforced concrete flat slabs with a thickness of 150 mm. The lightweight polystyrene foam concrete was used in these specimens with a density of 1820 kg/m3. The results showed that the fire effect lead to a decrease in the maximum carrying load of foam concrete slabs by 25%. Also, by comparing the finite element results with the selected experimental study, the results showed a great agreement with the analytical study used in this research.

show abstract

“…By comparing lightweight foamed concrete beams reinforced with GFRP bars, it was found that the increase in the load capacity for beam reinforced with GFRP is 11.54% of the load capacity for beams reinforced with steel bars [8]. Lee et al (2017) investigated seven beams of lightly foamed mortar and three beams of normal weight concrete as control samples, the experimental results of the flexural behavior of beams and reinforced concrete slabs made of lightweight foamed mortar with a density ranging from 1700-1800 kg/m 3 , show that light foamed mortar beams can withstand ultimate loads about 8 to 34% lower than normal weight reinforced concrete with the same reinforcing configuration [9].…”

Section: Introductionmentioning

confidence: 99%

Flexural Behavior of Normal and Lightweight Concrete Composite Beams

et al. 2021

View full text Add to dashboard Cite

This paper presents an experimental study of the behavior of Normal Concrete Beams (NCB) and composite beams with lightweight foamed concrete (CB), reinforced with steel bar measuring 2 f 8 mm in the compressive section and 2 D 16 mm in the tensile section, shear steel bar f 8 mm. The sample consisted of two normal concrete beams (NCB) and two composite beams with lightweight foamed concrete (CB). The main variables in this study are the type of concrete, the type of steel bar and the flexural behavior. The beam samples were tested by two-point loading, failure mode and crack width were observed. The results showed that the flexural process of normal concrete blocks (NCB) and composite beams with lightweight foamed concrete (CB) was almost the same. There is no slip failure at the combined interface, the flexural capacity of the composite beam with lightweight foamed concrete can be calculated based on the statics analysis and plane-section assumptions. To calculate the ultimate capacity of a composite beam with lightweight foamed concrete is to convert a section consisting of more than one fc' to an equivalent section consisting of one fc'. Furthermore, it is validated by calculating the theoretical moment capacity and comparing the theoretical moment capacity of the experimental results. The results of the flexural test, composite beam with lightweight foamed concrete (CB) showed ductile deflection behavior, diagonal crack patterns, and low flexural capacity of the beam (NCB). Doi: 10.28991/cej-2021-03091673 Full Text: PDF

show abstract

Flexural Behaviour of Reinforced Lightweight Foamed Mortar Beams and Slabs

Cited by 17 publications

References 10 publications

Experimental and Numerical Study of the Strength Performance of Deep Beams with Perforated Thin Mild Steel Plates as Shear Reinforcement

Experimental and Numerical Study of the Strength Performance of Deep Beams with Perforated Thin Mild Steel Plates as Shear Reinforcement

Analysis of Lightweight Polystyrene Foam Concrete Flat Slabs under Fire Condition

Flexural Behavior of Normal and Lightweight Concrete Composite Beams

Contact Info

Product

Resources

About