Bond behavior of steel bars embedded in concretes made with natural lightweight aggregates

Alshannag, Mohammad; Charif, Abdelhamid

doi:10.1016/j.jksues.2017.05.002

Cited by 15 publications

(11 citation statements)

References 10 publications

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“…Comparing table 5 and figure 5, it can be seen that even if the matrix materials are similar, the differences in τ 0 -S 0 obtained by different works in the literature are also large. For example, the bond stress of structural lightweight concrete with the highest compressive strength studied by Al-Shannag and Charif [27] is significantly lower. The compressive strength of shale ceramsite lightweight concrete for this research is generally lower than that of natural lightweight aggregate concrete, but its bond strength is obviously higher than others.…”

Section: Test Curve Analysismentioning

confidence: 95%

“…Different type of concrete has different aggregates and mix ratios, which will thus affect the bond performance. For instance, Mo et al [1], Zemour et al [26], Al Shannag et al [27] and others show that the bond behavior of lightweight aggregate concrete (LWAC) is much better than normal weight concrete (NWC), and in terms of structural use, it is more environmentally friendly, economical and technical. Because LWAC has obvious advantages in terms of light weight, good thermal performance, fire resistance and shock resistance, as well as environmental friendliness, it is widely used in the construction of high-rise buildings, long-span bridges and marine structures in harsh environments [28][29].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Bond Properties Between ALWSCC and Steel Bars Based on Different Test Methods

Yang

Zhi

Tang

et al. 2021

Advances in Transdisciplinary Engineering

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Reasonable evaluation of the bond performance between steel bars and concrete has important theoretical and practical value for reinforced concrete structural design and seismic analysis. The stress (τ) – strain (ε) formula is corrected based on a pull-out test, and the load (F) – deflection (w) curves are analyzed according to the change of stiffness before and after crack appearance based on a beam test, and new estimation formulas are given. At the same time, the bond properties are compared between all-lightweight shale ceramsite concrete (ALWSCC) and normal weight concrete (NWC). The results show that the bond property of ALWSCC is better than NWC. The bond stresses of pull-out specimens and beam specimens are the same or similar under equal conditions, but the ultimate load (F0) of the former is about 3.66 times that of the latter, the peak slip (S0) of the latter is 4.80 times that of the former, and the latter has significant splitting or pull-out failure characteristics. The peak slip (S0) in this paper is larger than that in the related literature, where the pull-out specimens are no more than 10 mm, and are generally less than 2 mm, while the beam specimens are not more than 3 mm, with the others generally around 1 mm. The research results have reference values and guiding significance for similar experimental research and engineering practice.

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Section: Test Curve Analysismentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Comparison of Bond Properties Between ALWSCC and Steel Bars Based on Different Test Methods

Yang

Zhi

Tang

et al. 2021

Advances in Transdisciplinary Engineering

View full text Add to dashboard Cite

show abstract

“…The cube was centrally placed between the plates of a compression-testing machine loading rate for150 mm cube was 140 kg/cm 2 per minute until the specimen fails. For the tensile test, apply the load continuously and without shock, at a constant rate within the range 690 to 1380 KN/m 2 /min splitting tensile stress until failure of the specimen [10].…”

Section: Methodsmentioning

confidence: 99%

A Comparative Study on the Mechanical Properties of Normal and Rubberized Green Concrete

Heylemelecot¹,

Kedir²,

Agon³

2020

AJCEA

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“…moreover, Al-Shannag, M. J., & Charif, A. (2017) [44] (2020 [52] investigate the bond strength between crushed clay bricks aggregate (1046kg/m 3 ) concrete (30Mpa, 25Mpa, 20Mpa ′ ) and steel bars (12mm, 16mm, 20mm diameters) and discovered that the minimum(2.75mm) and maximum (6mm) slips were noted by using 12 mm and 6 mm diameter bar respectively. And stated that higher slips for larger diameter bars compared with lower diameters bars.…”

Section: The Effect Of Rebar Variables On the Bond Strength Of Lightweight Concrete A-reinforcing Typementioning

confidence: 99%

Bonding Performance for Lightweight Concrete: A Review

Ahmed

Abed

2020

DJES

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Nowadays, lightweight concrete become popular among construction companies due to its physical characteristic such as sound and thermal insulation, lightweight, cost and environmental saving, self-levelling…etc., which make it an attractive choice as a building material. However, this concrete face many constructional obstacles due to the lack of adequate and sufficient constructional information about the nature of this concrete. This requires great caution when use it for structural purposes. Among these great constraints, for example, is the weak characteristic of the bond between this concrete and reinforcing steel. Therefore, in order to get rid of these defects of concrete and make it usable in various construction sectors, this paper summarizes researchers works concerning bond behavior between light weight concrete and reinforcing bars , the variable influencing bond behavior such as; concrete type, rebar type and diameter, W/C ratio, and adding fibres. And results collected from experimental work with most important conclusions

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Bond behavior of steel bars embedded in concretes made with natural lightweight aggregates

Cited by 15 publications

References 10 publications

Comparison of Bond Properties Between ALWSCC and Steel Bars Based on Different Test Methods

Comparison of Bond Properties Between ALWSCC and Steel Bars Based on Different Test Methods

A Comparative Study on the Mechanical Properties of Normal and Rubberized Green Concrete

Bonding Performance for Lightweight Concrete: A Review

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