Strength development of plain concrete slabs by the sustainability potential of lead-loaded rice husk (LLRH)

Abbas, Firas Saeed; AbdulKareem, Wael Shahadha; Abbas, Mohammed Nsaif

doi:10.5937/jaes0-32253

Cited by 7 publications

(5 citation statements)

References 8 publications

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“…Coarse aggregatesCoarse aggregate (with sulfate salts 0.045%, specific gravity 2.52, and with 5-20 mm nominal size) was utilized in this work. Its properties were agreed with the Iraqi standard 45 of 1984[13] (Table4)[11].…”

supporting

confidence: 71%

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The improvement of concrete strength through the addition of sustainable materials (agro-waste loaded with copper ions)

Rajaa,

Kadhim,

Abbas

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The country’s rapid industrialization and urbanization stimulated extensive infrastructure development. This technique results in a shortage of construction materials, increased trash generation, and other side effects. The production of long-lasting and environmentally friendly plain concrete slabs is a critical requirement for this task. It is intriguing to observe that the ions of copper in wastewater added to agro-waste (waste tea leaves) can be used to boost the compressive strength and plain concrete slabs’ workability (or walls) as sustainable materials. Waste tea leaves+Cu were incrementally added in 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 1.3%, and 1.75% by weight. Casting and testing 36 specimens (12 sets x 3 specimens) for seven- and twenty-eight- days strength. The results indicate that the strength of the sample with 0.7% waste tea+Cu is 55% and 15% more than the reference and that having only tea leaves pieces after seven days, respectively. In contrast, the 0.7% group had 46 percent and 20 percent greater strength after 28 days. These findings propose an innovative approach to dealing with toxic trash and give an accessible, practical, cost-effective, sustainable, and ecologically acceptable way of removing numerous forms of garbage.

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supporting

confidence: 71%

“…In this study's experimental work, the locally produced Portland cement (Tasluja type) was used. The chemical properties were explained in table (1), while the physical properties were described in table (2) of this type, which was examined by [11] and compared to Iraqi standard 5/1984 [12].…”

Section: Cementmentioning

confidence: 99%

The improvement of concrete strength through the addition of sustainable materials (agro-waste loaded with copper ions)

Rajaa,

Kadhim,

Abbas

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…This event highlights rice husks' industrial possibilities as potential substrates for Aspergillus niger's cellulase enzyme manufacturing, which could help to reduce agro-waste pollution. Nachaiwieng et al [45] explored the utilization of Kluyveromyces marxianus CK8, a thermotolerant yeast capable of ethanol fermentation at 45 °C, in simultaneous saccharification and fermentation (SSF) of rice husk. Four parameters-substrate content, temperature, incubation duration, and pH-significantly influenced SSF.…”

Section: Production Of Bioethanol From Rice Husksmentioning

confidence: 99%

Bioethanol Production From Agricultural Waste: A Review

Hamdi,

Nsaif Abbas,

Atalah Khaleefa Ali

2024

J. eng. sustain. dev.

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The importance of this research lies in keeping pace with the global trend to diversify energy sources and reduce climate change and air pollution by shedding light on how to benefit from agricultural waste by using it as a raw material for the production of bioethanol, which is one of the most important types of renewable fuels. This review highlighted the; ways of converting agricultural and fruit waste into bioethanol and its environmental and economic benefits-including adding it to gasoline used as car fuel in different proportions, as it works to raise the octane number of gasoline and improve its quality, thus reducing its production costs and reducing gas emissions from vehicle exhaust. In addition, the global production of bio-ethanol was reviewed and is expected to reach it by the end of 2023. It also highlighted the results of several studies that dealt with the properties and uses of ethanol and the best agricultural wastes used for this purpose. It is suggested to focus on the agricultural waste in Iraq, such as rice husks, in terms of cost and conditions for improvement to increase bio-ethanol production using fermentation processes.

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“…Furthermore, they do not necessitate intricate manufacturing procedures, in contrast to activated carbon [30]. These waste materials fall within the category of municipal waste and are frequently disposed of at no expense or repurposed using the Zero Residue Level (ZRL) approach [31]. Based on laboratory-scale experimentation, this concept has demonstrated remarkable success in the realm of waste management by effectively transforming hazardous residues into valuable materials, such as additives [32], pesticide [33], ketones [34], or nano-particles [35].…”

Section: Introductionmentioning

confidence: 99%

Study the Teratogenic Effect of Antimony on The Histological Changes of the Liver in the Adult Rabbit (Oryctolagus cuniculus)

Abd Ali,

Salman,

Ibrahim

et al. 2024

Adv. life sci.

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Background: Heavy elements such as antimony greatly affect the environment and living organisms. Antimony is discharged into the environment by mining and industries that use it as pesticides and flame retardants. This activity can lead to environmental pollution, water and soil contamination. Antimony can also accumulate in living organisms and cause negative health effects, such as damage to the respiratory system and skin, and growth abnormalities of animals and plants.Methods: The primary objective of this investigation was to explore the teratogenic impact of the antimony heavy metal on histological structure of the liver in adult rabbits (Oryctolagus cuniculus). The study included 21 adult white rabbits divided into several groups: the first one is the control group injected with physiological saline (0.09% NaCl), the other group injected with 20 mg/kg antimony, and the last injected with 30 mg/kg antimony over a 30-day period. Following this, postmortem procedures were conducted to extract and fix the liver organ, and tissue sections were prepared.Result: The results revealed significant histological changes, including distortion and rupture in Glisson’s Capsule, leading to the formation of a sub-capsular space due to its separation from hepatocytes. Additionally, alterations in the radial organization of hepatocytes and pyknosis in the nuclei were observed, characterized by a dark color and reduced size. Karyolysis, where nuclei completely disappeared, and hydropic degeneration in hepatocytes with swollen appearance and dark nuclei due to fluid accumulation were noted. Moreover, an increase in Kupffer cells and blood congestion in the central vein, resulting in dilation compared to the control group, were observed.Conclusion: Overall, the treatment with antimony at 20 and 30 mg/g doses for 30 days show profound teratogenic effects on the histological structure of the liver in adult rabbits. These effects are represented by the destruction of various parts of liver, in addition to changes in arrangement, and distortion and rupture of the cells. Furthermore, an increase in Kupffer cells and blood congestion were also recorded.Keywords: Antimony; Liver; Rabbits; Kupffer cells; Glisson’s capsule; Environmental effects

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Strength development of plain concrete slabs by the sustainability potential of lead-loaded rice husk (LLRH)

Cited by 7 publications

References 8 publications

The improvement of concrete strength through the addition of sustainable materials (agro-waste loaded with copper ions)

The improvement of concrete strength through the addition of sustainable materials (agro-waste loaded with copper ions)

Bioethanol Production From Agricultural Waste: A Review

Study the Teratogenic Effect of Antimony on The Histological Changes of the Liver in the Adult Rabbit (Oryctolagus cuniculus)

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