Tagabo Volcanic Ash as Cement Replacing Materials

Ahmedai, Mutasim A.; Ahmed, Salih A. M.; Ahmed, Yousif Hummaida; Ibrahiem, El-Sharif M.

doi:10.52981/fjes.v9i2.674

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…Among the many uses in various fields [10,11], fragmented basalt aggregates, which are compact, finely grained, very dark green or black rocks produced when melted lava from the depths of the Earth's crust ascends and crystallizes, are employed as a natural resource for the manufacturing of cheap and eco-friendly construction materials with acceptable strength and durability features, particularly in line within the framework of a sustainable development [12]. In fact, the partial replacement of Portland cement with basalt aggregates in concrete, when available, could represents a more cost-efficient solution [13].…”

Section: A Samples Descriptionmentioning

confidence: 99%

Radioactivity content in construction materials of assets of particular historical-artistic interest

Caridi,

Paladini,

Marguccio

et al. 2023

Proceedings of the 2022 IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage

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In the present paper, an investigation focused on the natural radioactivity content in construction materials widely employed for the realization of buildings of particular historical-artistic importance, was performed. In particular, the assessment of the activity concentration of 226 Ra, 232 Th, and 40 K radioisotopes in red granite and basalt aggregate samples was carried out through High Purity Germanium (HPGe) γ-ray spectrometry. Moreover, several indexes developed to evaluate the radiological risk for human beings related to radiation exposure, i.e. the radiation activity concentration index (I), the alpha index (Iα), the radium equivalent activity (Raeq), the hazard indexes (Hin and Hex), the absorbed γ-dose rate (D) and the annual effective dose equivalent outdoor (AEDEout) and indoor (AEDEin), were calculated.

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Section: A Samples Descriptionmentioning

confidence: 99%

Radioactivity content in construction materials of assets of particular historical-artistic interest

Caridi,

Paladini,

Marguccio

et al. 2023

Proceedings of the 2022 IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage

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show abstract

“…They are considered as natural resources for the production of low-cost and environmentally friendly building materials with acceptable strength and durability characteristics, which can contribute to sustainable development [ 8 , 9 ]. In particular, the partial replacement of Portland cement by pyroclastic products in mortars and concrete, when available, may lead to a cheaper solution [ 10 ]. Moreover, in countries with active volcanoes, such as Southern Italy, pyroclastic products could be used to supply nutrients and reduce CO 2 from the atmosphere [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Multivariate Statistics, Mineralogy, and Radiological Hazards Assessment Due to the Natural Radioactivity Content in Pyroclastic Products from Mt. Etna, Sicily, Southern Italy

Caridi

Spoto

Mottese

et al. 2022

IJERPH

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In this article, an investigation of the natural radioactivity content of pyroclastic products from Mt. Etna, eastern Sicily, Southern Italy, was carried out. In particular, the assessment of the average activity concentration of the investigated radionuclides, related to the mineralogical phase composition of the analyzed samples, and the radiological health risk for the population, was performed. High Purity Germanium (HPGe) gamma-ray spectrometry was employed in order to quantify the average specific activity of 226Ra, 232Th, and 40K natural radioisotopes. The absorbed gamma dose rate (D), the radium equivalent activity (Raeq), the hazard indices (Hin and Hex), the annual effective dose equivalent outdoor (AEDEout), and the excess lifetime cancer risk (ELCR) were also estimated in order to assess any possible radiological hazard for the population. In our case, they were found to be lower than the maximum recommended values for the population members, thus reasonably excluding radiological hazard effects. Moreover, the identification of the source of the aforementioned naturally occurring radionuclides was attempted by X-ray Diffraction (XRD) and Micro-Raman Scattering (MRS), thereby recognizing the main radioisotope-bearing minerals present in the investigated pyroclastic products. Finally, Pearson correlation, Principal Component Analysis (PCA), and Hierarchical Cluster Analysis (HCA) were performed by processing observed radioactivity and radiological parameters in order to determine their correlation with the sampling locations.

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Multivariate Statistical Analyses and Potentially Toxic Elements Pollution Assessment of Pyroclastic Products from Mt. Etna, Sicily, Southern Italy

et al. 2022

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Potentially toxic elements contamination represents a universal problem of major concern, due to several adverse health effects on human beings when permissible concentration levels are overcome. In this sense, the assessment of potentially risky elements content in different environmental matrices plays a key role in the safeguarding of the quality of the environment, and thus of the strictly correlated public health. In this article, measurements of the average potentially toxic elements concentrations in pyroclastic products from Mt. Etna, Eastern Sicily and Southern Italy were performed together with a comparison with the allowable levels set by Italian legislation, with the aim to evaluate the level of toxicity imposed on the ecosystem. For this purpose, Inductively-Coupled Plasma Mass Spectrometry (ICP-MS) measurements were performed to investigate any possible chemical pollution by potentially risky elements, by applying different indices such as Enrichment Factor (EF), Geo-accumulation Index (Igeo), Contamination Factor (CF) and Pollution Load Index (PLI). Finally, the multivariate statistical analysis was performed by processing potentially toxic elements content and pollution indices. It is worth noting that the used approach could be applied, in principle, for the evaluation of the chemical risk due to the presence of potentially toxic elements in a large variety of samples of particular environmental interest, and can constitute a guideline for investigations focused on the monitoring of the environmental quality.

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Tagabo Volcanic Ash as Cement Replacing Materials

Cited by 3 publications

References 5 publications

Radioactivity content in construction materials of assets of particular historical-artistic interest

Radioactivity content in construction materials of assets of particular historical-artistic interest

Multivariate Statistics, Mineralogy, and Radiological Hazards Assessment Due to the Natural Radioactivity Content in Pyroclastic Products from Mt. Etna, Sicily, Southern Italy

Multivariate Statistical Analyses and Potentially Toxic Elements Pollution Assessment of Pyroclastic Products from Mt. Etna, Sicily, Southern Italy

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