Characterizations and Modeling the Influence of Particle Size Distributions (PSD) of Glass Powder on the Mechanical Behavior of Normal Strength Concrete

Omer, Brwa; Saeed, Jalal A.

doi:10.13189/cea.2020.080526

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…In terms of the mechanical properties of concrete, test results have shown that there is no consensus on the optimum content of GP to improve the strength of hardened concrete [47]. This was mainly due to the different chemical compositions, amorphous phases, and particle sizes of GP.…”

Section: A R C H I T E C T U R E C I V I L E N G I N E E R I N G E N mentioning

confidence: 99%

Long-Term Effect of Different Particle Size Distributions of Waste Glass Powder on the Mechanical Properties of Concrete

Omer

Saeed

2020

Architecture, Civil Engineering, Environment

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According to the Global Cement Report, the total annual cement consumption in 2016 was 4.13 gigatonne (Gt), and by 2050 it is anticipated to expand to 4.68 Gt /year [1]. This means that demand for cement production has not decreased. The cement manufacturing process is the most energy-intensive sector, inevitably accompanied by high CO 2 emissions, which cannot be averted even if the overall production process is optimized to the fullest extent possible. According to Worrell et al. (as cited in Sonebi et al. [2]), the estimated reduction of CO 2 emissions of cement by at least 5% and possibly up to 20% could be achieved once the construction industry is committed to using supplementary cementitious materials (SCMs). Federico [3] has defined SCMs as those which react either hydraulically or pozzolanically in the pore solution of hydrating cement. Silica fume, ground granulated blast-furnace slag, and fly ash are such materials considered as the most widely used waste-based SCMs [2]. The use of SCMs to partially replace cement could reduce cement production and thus reduce the consumption of fossil fuels and greenhouse gas emissions [4].

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Section: A R C H I T E C T U R E C I V I L E N G I N E E R I N G E N mentioning

confidence: 99%

Long-Term Effect of Different Particle Size Distributions of Waste Glass Powder on the Mechanical Properties of Concrete

Omer

Saeed

2020

Architecture, Civil Engineering, Environment

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“…5,[29][30][31] Some studies reported the tensile strength of concrete incorporating GP as a partial replacement for cement. Omer and Saeed 32 studied the split tensile strength of concrete incorporating GP. In the study, cement was replaced in various percentages up to 30% with GP.…”

Section: Introductionmentioning

confidence: 99%

Coupled effect of waste glass powder and glass fibers on mechanical properties of concrete: A step towards the elimination of non‐biodegradable waste

Ahmed

Ali

Akmal

et al. 2023

Structural Concrete

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Silica, a principal component of waste glass powder (GP) reacts with calcium hydroxide to form the hydration products, and the process is affected by the fineness of GP and the percentage of cement replaced. This study investigates the structural behavior of concrete incorporating GP in reinforced concrete members by 0%–25% (by weight) replacement of cement with GP along with 0%–0.45% addition of glass fibers (GFs). The compressive and tensile strengths, strength activity index (SAI), and failure mode of treated concrete mixtures have revealed the optimum values as 15% replacement of cement with GP with 0.3% of GF. In the second stage of experiment, reinforced concrete beams were cast at various percentages of GP and GF to investigate the load–deflection response. It was observed that the beam specimen treated with GP exhibited considerably less mid‐span deflection (14.8 mm) at failure as compared to the control beam (with no GP and GF) which failed at 29.4 mm. The beam specimen treated with GP only showed significant degradation in stiffness after the peak load due to the fact that a part of GP remains unreacted and acts as a filler. Moreover, the beam specimen cast at optimum percentages of GP (15%) and GF (0.3%) showed large mid‐span deflection and higher failure load as compared to the control beam. These results suggest that the partial replacement of cement with GP should be accompanied by the addition of fibers to avoid unwanted brittle responses of GP concrete, with the additional advantage of reducing the non‐biodegradable waste.

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Evaluating the shear performance of reinforced concrete beams using waste glass powder as a sustainable cement substitute

Omer,

Saeed

2024

Structural Concrete

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The scarcity of comprehensive data on the shear properties of reinforced GP‐concrete beams without shear reinforcement has hindered their widespread use, mainly due to challenges in predicting their shear performance. This study examines the influence of incorporating up to 15% waste glass powder (GP) with two separate particle size categories: GP‐A (55 to 135 μm) and GP‐B (finer than 55 μm) as a cement replacement on the 180‐day shear performance of reinforced concrete beams with varying cement content and without stirrups. To accomplish this, a total of 14 beams were used, all sharing identical dimensions measuring 200 mm × 250 mm × 2000 mm. The aforementioned parameters were investigated for their effects on the shear performance of beams, including crack patterns, modes of failure, load–deflection behavior, and strength capacities at different loading stages. Furthermore, this investigation explores the applicability of the most commonly used design codes of practice for predicting the shear strength of reinforced GP‐modified concrete beams. These codes are typically employed to design the shear strength of reinforced conventional concrete shallow beams without shear reinforcement. The study's findings indicate that the impact of GP particle size on the shear performance of beams with the same GP content is almost negligible. Additionally, the study found that incorporating GP into concrete beams does not have any negative effects on their cracking load capacity, shear strength, or flexural cracking load capacity. In fact, it can even improve the latter. A comparison of experimental results with predictions from the design codes revealed that both the CEB‐FIP (1990) equation and the ACI equations provided safe estimates of shear strength for the tested beams. However, the CEB‐FIP (1990) equation yielded predictions with a lower mean, standard deviation, and coefficient of variation compared with the ACI equations, suggesting a higher level of accuracy in its estimates. The findings affirm the suitability of GP‐concrete as a viable alternative in concrete structures specifically engineered to withstand shear forces.

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Characterizations and Modeling the Influence of Particle Size Distributions (PSD) of Glass Powder on the Mechanical Behavior of Normal Strength Concrete

Cited by 7 publications

References 35 publications

Long-Term Effect of Different Particle Size Distributions of Waste Glass Powder on the Mechanical Properties of Concrete

Long-Term Effect of Different Particle Size Distributions of Waste Glass Powder on the Mechanical Properties of Concrete

Coupled effect of waste glass powder and glass fibers on mechanical properties of concrete: A step towards the elimination of non‐biodegradable waste

Evaluating the shear performance of reinforced concrete beams using waste glass powder as a sustainable cement substitute

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