Nondestructive Testing Procedure to Evaluate the Load-Carrying Capacity of Concrete Anchors

Saleem, Muhammad; Al-Kutti, Walid A.; Al-Akhras, Nabil M.; Haider, Hassan

doi:10.1061/(asce)co.1943-7862.0001105

Cited by 18 publications

(8 citation statements)

References 7 publications

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“…Much research has been conducted in the past to develop concrete with the ability to transmit light by embedding optical fibers in concrete . Researchers have shown that real‐time information regarding traffic safety can be transferred to the road users by controlling the color of light being transmitted through the optical fibers dispersed in concrete to act as lane separators . Researchers have also investigated using embedded optical fibers in concrete to assess its internal stress distribution.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Researchers have also investigated using embedded optical fibers in concrete to assess its internal stress distribution. This approach can be used to assess the internal cracking in large concrete walls such as used in nuclear reactors, large concrete dams, and other industrial applications . Furthermore, also investigated the durability aspect of fiber embedded concrete.…”

Section: Literature Reviewmentioning

confidence: 99%

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Development, testing, and environmental impact assessment of glow‐in‐the‐dark concrete

Saleem

Blaisi

2019

Structural Concrete

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Glow-in-the-dark (GiD) material has the advantage that it can absorb energy in the presence of a light source and emit the absorbed energy in the form of visible light in the absence of external light. The presented research work deals with the development, testing, and environmental impact assessment of GiD-concrete. New innovative interlocking concrete blocks have been developed which have the ability to GiD without the need of any external power source. The presented GiD-concrete has the advantage of long-term durability over using GiD material as emulation.Through experimentation, 20% GiD addition was found to be the optimum dosage for GiD-concrete. Mechanical tests consisting of strength, skid resistance, thermal cycling, and glow intensity and duration were conducted on the prepared prototypes. In addition, environmental impact assessment and toxicity testing was conducted in accordance with the U.S. Environmental Protection Agency's (U.S. EPA) standards and regulations in order to ascertain the effects of GiD material on the environment and human health. Through these experimentations, the durability and safety of the developed material with regard to the real-world application have been judged. The provided information can be used by engineers and researchers along with regulatory bodies to develop guidelines regarding the application of the newly developed material in infrastructure projects. Furthermore, the developed prototype can be used in a variety of ways to improve safety and living conditions, ranging from bicycle lanes, pedestrian crossings, building basements, walkways, concrete barriers, and curbstones along with other architectural and esthetical applications.basements, bicycle way, concrete barriers, durability, environmental impact assessment, glow-in-thedark, interlock blocks, pedestrian crossings, safety, walkways

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Development, testing, and environmental impact assessment of glow‐in‐the‐dark concrete

Saleem

Blaisi

2019

Structural Concrete

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“…Since NDT is an easy, quick and inexpensive test, researchers continue proposing improvements and new applications for the rebound test method [30], [36], [37]. This paper discusses the possible advantages and limitations of the use of the rebound hammer for improving the technological control of the concrete used in the manufacture of hollow core slabs.…”

Section: Introductionmentioning

confidence: 99%

Application of the rebound test for the technological control of concrete hollow-core slabs

Haach

Paiva

2020

Rev. IBRACON Estrut. Mater.

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Hollow-core slabs are precast elements produced with very dry concrete, which hinders the molding of cube or cylindrical specimens normally used for the technological control of the material. This paper addresses the use of the rebound test for the technological control of concrete applied to hollow-core slabs. An experimental program divided into two phases was developed. In the first phase, three concrete mixtures were produced and compressive and rebound tests were performed in cylindrical and prismatic specimens for 6 hours to 28 days for the obtaining of a correlation curve. In the second phase, a hollow-core slab was built with one of the concrete mixtures used and the same tests were applied. The results showed the rebound number correlates well with the compressive strength, which confirms the possible application of the test for the technological control of the concrete used in the construction of hollow-core slabs.

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“…Eligehausen and Sawade came to a conclusion that experimental results showed a strong size effect on the nominal pull‐out strength in the investigated size ranges. Saleem et al conducted experimental work to estimate the pull‐out carrying capacity of concrete anchors by using Schmidt hammer rebound value. Poveda et al studied experimentally and numerically the behavior of steel anchors in precast façade concrete panels subjected to normal and tangential extraction forces.…”

Section: Introductionmentioning

confidence: 99%

Structural behavior of cast‐in C‐channel anchors in precast concrete under uniaxial tension

AbouHamdah¹,

Al‐Osta

Baluch

et al. 2017

Structural Concrete

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The cast‐in C‐channel is a small anchoring steel piece used to post‐connect different types of elements in precast concrete members. The objective of this study was to investigate the ultimate capacity of cast‐in C‐channels under uniaxial tension and to compare its ultimate load capacity and failure modes with a three‐dimensional finite element (FE) simulation, and to develop a mechanistic solution for cast‐in C‐channels. Five samples were cast and tested in varying configurations to induce the different failure modes of the channels, focusing on the influence of the confinement of the host concrete as well as the effect of the studs. The results showed that flexure of the channel governed the capacity in both the experimental work as well as in FE. In addition, the results of having local lip yielding as another dominant failure mechanism were similar to that observed in the experimental work and the finite element method (FEM). The FEM predicted not only the failure modes as addressed in mechanistic formulations but also captured the diagonal cracking in the host concrete and relative slip of the embedded channel, both phenomena observed in the experimental work but not accounted explicitly in the current design formulations.

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Nondestructive Testing Procedure to Evaluate the Load-Carrying Capacity of Concrete Anchors

Cited by 18 publications

References 7 publications

Development, testing, and environmental impact assessment of glow‐in‐the‐dark concrete

Development, testing, and environmental impact assessment of glow‐in‐the‐dark concrete

Application of the rebound test for the technological control of concrete hollow-core slabs

Structural behavior of cast‐in C‐channel anchors in precast concrete under uniaxial tension

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