Environmental assessment and mechanical properties of Polypropylene fibres reinforced ternary binder foamed concrete

Jhatial, Ashfaque Ahmed; Goh, Wan Inn; Mastoi, Aamir Khan; Traore, Abdoul Fatah; Oad, Mahboob

doi:10.1007/s11356-021-15076-x

Cited by 30 publications

(5 citation statements)

References 65 publications

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“…The significant urbanization of modern territories, regardless of their location, leads to an increase in anthropogenic stress on the environment. This poses a challenge for reducing the environmental impact on the ecosphere, and there is a need to develop ways to dispose of various types of waste generated in significant volumes because of various chemical processes [1,2]. The mining industry is one such industry where many necessary and valuable metals and minerals are extracted from their respective mine ores.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Study on the Mechanical Activation and High-Temperature Treatment of Saponite-Containing Tailings Generated during Kimberlite Ore Dressing

et al. 2022

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This study investigates transformations of a pre-mechanically activated saponite-containing material with subsequent high-temperature treatment. The thermogravimetric analysis confirmed that the mechanical activation of saponite leads to the destruction of its layered structure, accompanied by the release of silicon dioxide and magnesium oxide in free form. The values of surface activity for mechanically activated saponite-containing material are also calculated. It is shown that when mechanically activated saponite-containing material is mixed with water, minerals of the serpentine group are formed, and further high-temperature treatment leads to the formation of minerals of the olivine group. It is experimentally shown that high-temperature treatment leads to the creation of a more durable structure of the saponite-containing material. This is due to decreased porosity and pore size, and sorption of moisture from the environment is also reduced. The study showed that saponite-containing waste materials can be effectively treated to create composite materials based on magnesia binders. Thus, with this method, the waste is effectively recycled into various green building material and can be used as supplementary cementitious material or fine aggregate replacement in concrete.

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Section: Introductionmentioning

confidence: 99%

Preliminary Study on the Mechanical Activation and High-Temperature Treatment of Saponite-Containing Tailings Generated during Kimberlite Ore Dressing

et al. 2022

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“…Li et al [14] investigated the physical and mechanical properties of sulfoaluminate cement-based foamed concrete prepared with different mix ratios, achieving a formulation that exhibits excellent physical and mechanical properties. Jhatial, Ashfaque et al [15] investigated the impact of incorporating Palm Oil Fuel Ash, Eggshell Powder, and reinforced polypropylene fibers on the strength and carbon dioxide emissions of ternary binder foamed concrete. Tang et al [16] investigated the effects on physical, chemical corrosion, and mechanical properties of plain recycled foamed concrete (RFC), polyethylene terephthalate (PET) fiber reinforced RFC, and recycled PET fiber reinforced RFC, identifying the optimal mix proportions.…”

Section: Introductionmentioning

confidence: 99%

Optimal Mix Design and Mechanical Properties of Rapid-Hardening Foam Concrete

Liu,

Zhao,

Yin

et al. 2024

Advances in Civil Engineering

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This paper conducts compressive strength tests on foam concrete prepared under four factors and three levels through the design of orthogonal experiments. It delves into the phase change rules of the load–displacement curves obtained under various mix proportions. Furthermore, based on the 1-day and 3-day compressive strength values, the study explores different mix proportion results using range analysis and variance analysis methods, thereby determining the optimal mix proportion that can satisfy the maximum 1-day and 3-day compressive strength values. The results indicate that the compression process of rapid-hardening foam concrete includes four stages: initial compaction stage, elastic stage, yielding stage, and plateau stage, with each stage having different causes. Additionally, the sensitivity sequence of factors affecting the 1-day and 3-day compressive strength of rapid-hardening foam concrete is respectively rapid sulfoaluminate cement (α) > water-reducing agent content (δ) > foam content (β) > water-cement ratio (γ) and rapid sulfoaluminate cement (α) > water-cement ratio (γ) > foam content (β) > water-reducing agent content (δ). With 100% sulfoaluminate cement content, the 1-day and 3-day compressive strength values can reach 1.7054 and 2.5471 MPa, respectively, which are 13 times and 7 times the minimum values of 1-day and 3-day compressive strength under other admixtures. The analysis shows that the content of rapid sulfoaluminate cement has the most significant effect on the 1-day and 3-day compressive strength of rapid-hardening foam concrete, with foam content having the least impact on 1-day compressive strength and water-reducing agent content having the least impact on 3-day compressive strength. By integrating range analysis and variance analysis, the optimal mix proportion that simultaneously satisfies the maximum 1-day and 3-day compressive strength is determined to be 100% content of rapid-hardening sulfoaluminate cement, 4% foam content, 0.55% cement ratio, and 0.12% admixture content. Overall, this study provides theoretical support for the research and development of new rapid-hardening foam concrete materials and has significant practical implications for the emergency repair and construction of infrastructure projects.

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“…Though substituting natural sand content with MHA may improve the overall hardened characteristics of concrete; however, it is still relatively weak under tension 29 ; therefore, to overcome this deficiency by utilising several kinds of fibers. Over the years, various fibers such as human hair fibers 30 , coir fibers 31 , Forta-Ferro fiber 32 , polypropylene fibers 33 , 34 , nylon fibers 35 , jute fibers 36 , carbon fiber 37 and steel fibers 38 – 44 , etc., develop fibers reinforced concrete; however, the current experimental study focuses only on the utilization of human hair fibers as a reinforcement material. The utilization of fibers as reinforcement material in concrete has gained significant importance because steel bar reinforcement in concrete poses a substantial risk of corrosion, which damages concrete.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive study on the impact of human hair fiber and millet husk ash on concrete properties: response surface modeling and optimization

Bheel,

Shams,

Sohu

et al. 2024

Sci Rep

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Revolutionizing construction, the concrete blend seamlessly integrates human hair (HH) fibers and millet husk ash (MHA) as a sustainable alternative. By repurposing human hair for enhanced tensile strength and utilizing millet husk ash to replace sand, these materials not only reduce waste but also create a durable, eco-friendly solution. This groundbreaking methodology not only adheres to established structural criteria but also advances the concepts of the circular economy, representing a significant advancement towards environmentally sustainable and resilient building practices. The main purpose of the research is to investigate the fresh and mechanical characteristics of concrete blended with 10–40% MHA as a sand substitute and 0.5–2% HH fibers by applying response surface methodology modeling and optimization. A comprehensive study involved preparing 225 concrete specimens using a mix ratio of 1:1.5:3 with a water-to-cement ratio of 0.52, followed by a 28 day curing period. It was found that a blend of 30% MHA and 1% HH fibers gave the best compressive and splitting tensile strengths at 28 days, which were 33.88 MPa and 3.47 MPa, respectively. Additionally, the incorporation of increased proportions of MHA and HH fibers led to reductions in both the dry density and workability of the concrete. In addition, utilizing analysis of variance (ANOVA), response prediction models were created and verified with a significance level of 95%. The models' R2 values ranged from 72 to 99%. The study validated multi-objective optimization, showing 1% HH fiber and 30% MHA in concrete enhances strength, reduces waste, and promotes environmental sustainability, making it recommended for construction.

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Environmental assessment and mechanical properties of Polypropylene fibres reinforced ternary binder foamed concrete

Cited by 30 publications

References 65 publications

Preliminary Study on the Mechanical Activation and High-Temperature Treatment of Saponite-Containing Tailings Generated during Kimberlite Ore Dressing

Preliminary Study on the Mechanical Activation and High-Temperature Treatment of Saponite-Containing Tailings Generated during Kimberlite Ore Dressing

Optimal Mix Design and Mechanical Properties of Rapid-Hardening Foam Concrete

A comprehensive study on the impact of human hair fiber and millet husk ash on concrete properties: response surface modeling and optimization

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