Flexural Characteristics of Reinforced Concrete Beams Containing Lightweight Aggregate in the Tensile Zone

Khatib, Jamal; Jahami, Ali; Baalbaki, Oussama

doi:10.2139/ssrn.3523048

Cited by 10 publications

(7 citation statements)

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“…Numerous studies [17][18][19][20][21][22][23] have investigated the significant impacts of incorporating plastic waste into concrete mixes on mechanical properties, durability, and workability. They have found that the careful addition of plastic waste can result in an array of positive effects, improving various mechanical features such as toughness, compressive strength, splitting tensile strength, impact strength, Young's modulus/modulus of elasticity, ductility, and water permeability.…”

Section: Figurementioning

confidence: 99%

Evaluation of Some Beneficial Environmental Impacts and Enhanced Thermal Properties Resulting from Waste Plastic Integration into Concrete

Salih,

Usman,

Hayder

et al. 2023

ACSM

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The burgeoning issue of plastic waste, exacerbated by urbanization and pollution, has emerged as a global concern. A novel approach to address this problem involves the recycling of waste plastics and their incorporation into concrete, thereby promoting sustainability and environmental responsibility. This study offers a comprehensive review of the effects of integrating plastic waste into concrete to enhance its thermal properties. The findings reveal that the inclusion of waste plastics considerably reduces the thermal conductivity of concrete, augments its thermal resistance, and optimizes its thermal diffusivity. Moreover, the utilization of plastic waste in concrete yields environmental advantages, such as the mitigation of detrimental impacts on marine and terrestrial ecosystems resulting from plastic pollution. This research contributes to the expanding body of literature on sustainable concrete production and waste plastic recycling, providing valuable insights for the development of eco-friendly construction materials.

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Section: Figurementioning

confidence: 99%

Evaluation of Some Beneficial Environmental Impacts and Enhanced Thermal Properties Resulting from Waste Plastic Integration into Concrete

Salih,

Usman,

Hayder

et al. 2023

ACSM

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“…Additionally, several researchers estimated multiple mechanical properties in concrete after replacing some portion of cement [21,67,[74][75][76][77][78][79][80][81][82][83][84][85][86][87][88][89][90][91][92][93].…”

Section: Impacts Of Nc On Thermal Propertiesmentioning

confidence: 99%

Investigation of Mechanical and Thermal Performance of Nanoclay Modified Concrete for Energy Efficiency

Hameed,

Usman,

Hayder

et al. 2023

ACSM

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In recent years, the integration of Nanoclay (NC) into concrete has garnered significant global attention due to its potential added benefits and importance in the construction industry. However, the existing literature lacks sufficient experimental validation and empirical analysis pertaining to several unexplored key properties, such as thermal resistance, conductivity, diffusivity, and fire resistance. This study aims to address these knowledge gaps and contribute to the current body of literature by providing a comprehensive review of the advantageous effects of NC incorporation on the aforementioned properties of concrete. A thorough examination of available data was conducted, focusing on the mechanical and thermal characteristics of concrete after the inclusion of NC in the mix design. The findings of this critical review indicate that the incorporation of NC into concrete can reduce building energy consumption and enhance thermal insulation properties. Moreover, the integration of NC in concrete was found to improve various thermal features, including thermal stability, fire resistance, thermal performance, thermal behavior, resistance to thermal cracking, and resistance to thermal degradation. In addition, the inclusion of NC in concrete was observed to decrease thermal conductivity, thereby facilitating effective thermal insulation and resulting in lower energy consumption during heating and cooling periods. Simultaneously, the integration of NC was found to bolster the compressive, flexural, and tensile mechanical properties of concrete. Furthermore, the incorporation of NC into concrete materials has the potential to mitigate negative environmental impacts, such as pollution and poor air quality. This comprehensive review provides valuable insights into the benefits of NC integration in concrete, paving the way for further research and innovative applications in the construction industry.

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“…Tensile compression stress on beam supports has gone down since CFRP was used. Several studies [13][14][15][16][17][18][19] have shown that CFRP may improve how well it absorbs energy, holds loads, and bends in the middle. The study showed that rebar-reinforced plastic sheets made lightweight concrete slabs more resistant to bending.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Reinforced Lightweight Concrete Slab with Initial Cracks

Khadim,

Abdulridha

2024

Frattura Ed Integrità Strutturale

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The flexural behavior of lightweight concrete two-way slabs repaired or strengthened with externally bonded carbon fiber-reinforced polymer (CFRP) sheets is the subject of this study. The experiment included five reinforced lightweight concrete slab specimens with dimensions of 1000 mm in length, 1000 mm in width, and 120 mm in thickness. Tested one specimen without any strengthening and reinforced another specimen with a single layer of CFRP. The other specimens were repaired with a single layer of CFRP, applying damage ratios of 50%, 60%, or 70% of the ultimate load. Intentionally designed each slab to collapse under bending forces and maintained comparable dimensions. According to the experiment results, changing the degree of damage from 70% to 50% increases the ultimate load capacity by about 17.7%, and the ultimate deflection decreases by about 31.4%. CFRPs have the potential to fix structural damage under static stress testing conditions. However, it is essential to make sure that they stick well to surfaces that do not have suitable geometric properties or have been deformed. CFRP sheets effectively repaired the specimens, increasing the failure stress of the reinforced concrete slabs and preventing the spread of cracks.

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Flexural Characteristics of Reinforced Concrete Beams Containing Lightweight Aggregate in the Tensile Zone

Cited by 10 publications

References 0 publications

Evaluation of Some Beneficial Environmental Impacts and Enhanced Thermal Properties Resulting from Waste Plastic Integration into Concrete

Evaluation of Some Beneficial Environmental Impacts and Enhanced Thermal Properties Resulting from Waste Plastic Integration into Concrete

Investigation of Mechanical and Thermal Performance of Nanoclay Modified Concrete for Energy Efficiency

Behavior of Reinforced Lightweight Concrete Slab with Initial Cracks

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