Bond behavior of reinforcing bars embedded in concrete made with crushed clay bricks as coarse aggregates

Hoque, Md. Mozammel; Islam, Niamul; Islam, Muhammad Nazrul; Kader, Mohammad Abdul

doi:10.1016/j.conbuildmat.2020.118364

Cited by 17 publications

(6 citation statements)

References 7 publications

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“…A comparison of experimentally obtained bond strength and predicted bond strength using existing models is presented in Figure 13. This comparison revealed that the bond strength predictions of the Hoque et al [45] model are in good agreement with the experimental data on the bond strength of RAC mixes containing 100% fine RBAs and varying percentages of coarse RBAs in place of coarse NAs (Figure 13a) and are in fair agreement with the experimental bond strength of RAC mixes containing 100% fine RCAs and varying percentages of coarse RCAs in place of coarse NAs (Figure 13b). However, the bond strength determined using the model proposed by ACI 318-19 was almost half of the experimental values of RAC mixes.…”

Section: Ceb-fip Modelsupporting

confidence: 76%

“…To predict bond strength between concrete and steel rebars, existing models proposed by past researchers for NAC, described below, have been employed in this study. Similarly, the model proposed by Hoque et al [45] for brick aggregate concrete has also been used.…”

Section: Prediction Of Bond Strengthmentioning

confidence: 99%

“…Hoque et al [45] studied bond behavior between brick aggregate concrete (BAC) and reinforcing rebars. For this purpose, they tested cylindrical as well as cubic specimens having design strengths of 20, 25, and 30 MPa.…”

Section: Prediction Of Bond Strengthmentioning

confidence: 99%

“…They observed a 4-20% decrease in the ultimate bond strength and an 8-14% decrease in the stiffness in the presence of RCAs in the concrete. Hoque et al [45] analyzed the bond response between concrete incorporating RBAs as coarse aggregates and steel rebar. Based on the experimentation, they developed an analytical model to calculate the bond strength of brick aggregate concrete (BAC).…”

Section: Introductionmentioning

confidence: 99%

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Impact of Recycled Concrete and Brick Aggregates on the Flexural and Bond Performance of Reinforced Concrete

Basit,

Hameed,

Abbas

et al. 2024

Applied Sciences

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The construction industry strongly relies on concrete and clay bricks for various applications. The escalating demand for these materials, driven by rapid population growth, has led to resource depletion and increased construction and demolition waste (CDW). Recycling CDW into construction materials, particularly in the form of recycled concrete aggregates (RCAs) and recycled brick aggregates (RBAs), has emerged as a promising solution. This study deals with the structural performance of concrete incorporating RCAs and RBAs. The experimental program encompasses material characterization, concrete mix design, and several tests to assess density, compressive strength, bond behavior, and flexural properties. The results indicate that the replacement of fine natural aggregate (NA) with fine RCAs or RBAs has a negligible impact on density, while the partial replacement of coarse NAs with RAs yields modest reductions in compressive strength. Notably, the bond strength between steel rebar and concrete is influenced by the type and content of RA, with specimens containing RCAs exhibiting a higher bond strength than those with RBAs. Empirical models used to predict bond strength generally align with experimental results, with conservative predictions by some models, such as ACI 318, and overestimation by others, such as models proposed by AS-3600 and CEB-FIB. The flexural tests of beams highlight the variation in stiffness and load-bearing capacity with the proportion of NAs replaced by RAs. While beams with 50% NA replacement demonstrate comparable performance to control beams, those with 100% RA replacement exhibit lower cracking and yielding stiffness. Cracking patterns in beams with RAs differ from control beams, with RA-containing beams showing more cracks and an altered crack distribution. The findings underscore the feasibility of using recycled aggregates in construction, with partial NA replacement offering a balance between sustainable material usage and desired structural properties.

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Section: Ceb-fip Modelsupporting

confidence: 76%

Section: Prediction Of Bond Strengthmentioning

confidence: 99%

Section: Prediction Of Bond Strengthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of Recycled Concrete and Brick Aggregates on the Flexural and Bond Performance of Reinforced Concrete

Basit,

Hameed,

Abbas

et al. 2024

Applied Sciences

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show abstract

“…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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Durability assessment of concrete containing recycled coarse refractory brick aggregate

Mangngi,

Tjaronge,

Caronge

2024

Innov. Infrastruct. Solut.

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Bond behavior of reinforcing bars embedded in concrete made with crushed clay bricks as coarse aggregates

Cited by 17 publications

References 7 publications

Impact of Recycled Concrete and Brick Aggregates on the Flexural and Bond Performance of Reinforced Concrete

Impact of Recycled Concrete and Brick Aggregates on the Flexural and Bond Performance of Reinforced Concrete

Bonding Performance for Lightweight Concrete: A Review

Durability assessment of concrete containing recycled coarse refractory brick aggregate

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