The Strength and Thermal Properties of Concrete containing Water Absorptive Aggregate from Well-Graded Bottom Ash (BA) as Partial Sand Replacement

Abdullah, Mohammed Jalal; Beddu, Salmia; Manan, Teh Sabariah Binti Abd; Syamsir, Agusril; Naganathan, Sivakumar; Kamal, Nur Liyana Mohd; Mohamad, Daud; Itam, Zarina; Yee, Hooi Min; Yapandi, Md Fauzan Kamal Mohd; Nazri, Fadzli Mohamed; Shafiq, Nasir; Isa, Mohamed Hasnain; Ahmad, Amirrudin; Rasdi, Nadiah Wan

doi:10.1016/j.conbuildmat.2022.127658

Cited by 14 publications

(3 citation statements)

References 37 publications

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“…Mesh size limitations led to discrepancies, especially in truss bar samples' inability to clearly show fractures. Diferences between numerical predictions and real-world outcomes were attributed to concrete's nonhomogeneous nature [85] and varying support conditions, not adequately captured by models assuming homogeneity. Tese variations arise from factors such as compaction and curing conditions, altering material characteristics.…”

Section: Finite Element Analysis and Verificationmentioning

confidence: 98%

Anti-Impact Performance Enhancement of Two-Way Spanning Slab through the Implementation of Steel Trussed Bars

Al-Dala’ien,

Anas,

Kodrg

2024

Journal of Engineering

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Reinforced concrete (RC) slabs represent integral structural components extensively employed in architectural and infrastructural frameworks owing to their inherent robustness and longevity. In contemporary times, there has been a pronounced surge in endeavors aimed at comprehensively elucidating the anti-impact properties inherent in RC slabs. This surge is propelled by a compelling necessity to fortify these structures against the deleterious effects of low-velocity impacts, thereby ensuring their steadfastness and resilience. Consider the thorough investigation into the anti-impact characteristics of RC slabs, which has been rigorously pursued through both experimental and computational methodologies. A plethora of scholarly discourse on this topic is readily available, providing invaluable insights into the structural dynamics governing slabs subjected to low-velocity impacts. However, there is a noticeable gap in research concerning the strengthening of slabs through shear reinforcement, particularly through economical, easily fabricated, and efficient systems such as fabricated trussed bars. The primary objective of this study is to explore the structural behavior of RC slabs fortified with custom-designed trussed bars under the influence of low-velocity impacts. To accomplish this, the Abaqus software platform is explicitly employed for analysis. The slab without any shear reinforcement is experimentally tested and serves as a reference model for numerical verification. Its anti-impact performance is compared with numerical findings. Following validation, simulations are conducted for square slabs strengthened by fabricated trussed bars in orthogonal and diagonal layouts. The results demonstrate that employing fabricated truss bars shear reinforcement with a 3 mm diameter in orthogonal and diagonal layouts enhances the resistance of slabs to damage, resulting in a 28.41% and 47.06% decrease in damage, respectively. The utilization of engineered truss bars as shear reinforcement yields significant improvements in strength, rigidity, and ductility when compared to control samples lacking such reinforcement. This enhancement is particularly evident when the engineered truss bars are arranged in orthogonal and diagonal configurations.

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Section: Finite Element Analysis and Verificationmentioning

confidence: 98%

Anti-Impact Performance Enhancement of Two-Way Spanning Slab through the Implementation of Steel Trussed Bars

Al-Dala’ien,

Anas,

Kodrg

2024

Journal of Engineering

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“…Worldwide, the extensive utilization of reinforced concrete (RC) structures can be primarily attributed to the favorable properties of concrete. These encompass high ductility, considerable stiffness, minimal maintenance requirements, enhanced fire resistance, and significant compressive strength despite its inherent deficiency in tensile strength [ 1 , 2 , 3 ]. However, corrosion poses a significant threat to the durability of RC structures, impacting both mechanical strength and long-term performance [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…Recognizing the potential severe issues arising from the corrosion of stirrups, numerous studies have been conducted to examine the performance of RC beams containing corroded stirrups [ 2 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. The presence of corroded stirrups compromises the shear capacity and ductility of RC beams, with the shear span ratio, stirrup spacing, and concrete strength being significant influencing factors.…”

Section: Introductionmentioning

confidence: 99%

Study on Shear Performance of Corroded Steel Fiber Reinforced Concrete Beams under Impact Load

Gu,

Li,

Huang

et al. 2024

Materials

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With the growing use of steel-fiber-reinforced-concrete (SFRC) beams in environmentally friendly and rapid construction, it is essential to assess their impact performance. These beams may encounter unexpected impact loadings from accidents or terrorist attacks during service life. This study explored the impact of steel fiber content and drop hammer height on the impact load testing of corrosion-treated SFRC beams. Experiments were conducted with varying steel fiber contents (0%, 0.25%, 0.5%, 0.75%, and 1.0%), and drop hammer height (1 m, 2 m, and 3 m). The corrosion test demonstrates that SFRC beams supplemented with steel fibers showcase a diminished surface rust spot area in comparison to those lacking fibers. This improvement is ascribed to the bonding between fibers and the concrete matrix, along with their current-sharing properties. SFRC beams, subjected to impact testing, exhibit concrete crushing at the top without spalling, showcasing improved impact resistance due to increased fiber content, which reduces crack formation. Additionally, different fiber contents yield varied responses to impact loads, with higher fiber content notably enhancing overall beam performance and energy dissipation capacity. Energy dissipation analysis shows a moderate increase with higher fiber contents, and impulse impact force generally rises with fiber content, indicating improved impact resistance.

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Assessment of induction furnace steel slag as a potential river sand substitute for the production of standard concrete

Panda,

Mohapatra,

Das

et al. 2024

Structural Concrete

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The global construction industry consumes about 50 billion tons of sand every year and in the last two decades; the consumption has tripled in amount. As a critical concern, continuous research is in progress to examine numerous materials as alternatives of river sand. This study focuses to completely replace river sand by induction furnace steel slag (IFSS) for producing standard concrete of M25 grade without compromising the mechanical strength of the resulting mix. One hundred and fifty millimeter sized cubes and 150 mm × 300 mm sized cylinders were casted using Portland slag cement (PSC) and Portland pozzolana cement (PPC) as per Indian standard provisions. Laboratory tests were performed to assess workability, hardened density, compressive strength (7 and 28 days) and splitting tensile strength (28 days). At 100% replacement level, the obtained values of (PSC, PPC) specimens are: slump values (35, 40 mm); hardened density (2730, 2790 kg/m3); compressive strength (34.83, 38.10 MPa) and splitting tensile strength (3.03, 3.32 MPa). This research will act as a game‐changer in the construction industry towards a global sustainable future.

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The Strength and Thermal Properties of Concrete containing Water Absorptive Aggregate from Well-Graded Bottom Ash (BA) as Partial Sand Replacement

Cited by 14 publications

References 37 publications

Anti-Impact Performance Enhancement of Two-Way Spanning Slab through the Implementation of Steel Trussed Bars

Anti-Impact Performance Enhancement of Two-Way Spanning Slab through the Implementation of Steel Trussed Bars

Study on Shear Performance of Corroded Steel Fiber Reinforced Concrete Beams under Impact Load

Assessment of induction furnace steel slag as a potential river sand substitute for the production of standard concrete

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