Evaluation of Natural Building Stones’ Characterizations Using Ultrasonic Testing Technique

Eljufout, Tamer; Alhomaidat, Fadi

doi:10.1007/s13369-021-05825-y

Cited by 8 publications

(4 citation statements)

References 19 publications

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“…The average time taken for the pulse to pass through the three faces of all the untreated specimen was 1.772 ms, indicating the high porosity of Gravina Calcarenite [64].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

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Evaluation of Eco-Friendly Consolidating Treatments in Pugliese Tuff (Gravina Calcarenite) Used in Italian Heritage Buildings

Huesca-Tortosa,

Spairani-Berrio,

Coviello

et al. 2024

Buildings

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This work evaluates the effectiveness of various consolidating treatments applied to Pugliese tuff (Gravina Calcarenite). This type of stone has been used in numerous historic buildings in the Puglia area (southeast of Italy), which presents durability problems due to high porosity, low cohesion between clasts, and low mechanical resistance. Eco-friendly treatments that generate CaCO3 have been selected, specifically bioconsolidant KBYO biological and lime water, which a priori are capable of consolidating without occluding the pores or reducing them excessively, thereby creating compounds similar to those contained in the stone and being respectful of the environment. Nano-sized treatments have also been tested, including nanosilica and nanolime, to compare results with eco-friendly treatments. The bioconsolidating treatment has been applied in two different ways, the usual way consisting of two applications a day for 7 days, as well as a double treatment that is applied in two batches of 7 days with a rest of 7 days between applications. Double treatment has shown a great improvement in consolidation compared to the usual 7-day application; this treatment has obtained the best results in both mechanical and petrophysical properties. This study not only demonstrates the effectiveness of the bioconsolidant but also expands eco-friendly conservation strategies to improve the preservation of historical structures built in calcarenite.

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“…The average time taken for the pulse to pass through the three faces of all the untreated specimen was 1.772 ms, indicating the high porosity of Gravina Calcarenite [64].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…The values obtained were averaged. Vaseline was not applied to avoid contamination of the specimens [64,65].…”

mentioning

confidence: 99%

Evaluation of Eco-Friendly Consolidating Treatments in Pugliese Tuff (Gravina Calcarenite) Used in Italian Heritage Buildings

Huesca-Tortosa,

Spairani-Berrio,

Coviello

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…and on the conservation state of the stone. Vp has a strong correlation with UCS, to the extent that researchers have used the ultrasonic pulse velocity to predict the strength of different types of stones [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Non-destructive methods applied for in situ mechanical diagnosis: Florentine historical buildings in Pietra Serena

et al. 2023

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Uniaxial Compressive Strength (UCS) is a key indicator of the mechanical properties of a rock, particularly in the diagnostic and restoration phases when stones are employed as construction material. In historical buildings, it is important to determine UCS values without utilizing tests that involve destructive rock sampling. To estimate UCS, non-destructive techniques, such as ultrasonic pulse velocity (Vp) and Schmidt hammer tests (R), can be combined to provide a useful tool. However, for architectural elements with complex morphology, it is sometimes impossible to perform both ultrasonic and sclerometric test. Three different UCS predictive models, one using R only, one using Vp and one using both, have been developed through regression techniques on a dataset comprising 45 Pietra Serena sandstone samples with varying levels of decay. The models were tested for their performance through Cross-Validation techniques and were then applied to a dataset of Vp and R values measured in situ on Pietra Serena corbels of balconies belonging to historical buildings in Florence (Italy). The specific predictive models were applied to real case studies, and the UCS of the rocks used in historical buildings was calculated, enabling the definition of the mechanical characteristics of building elements belonging to an important cultural context, Florentine historical architecture, without using destructive testing.

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“…Second, numerous researchers have studied natural constructing stones and evaluated their mechanical and physical properties [3][4][5][6][7][8][9][10][11][12][13], but the majority of these studies did not focus on the integration between all physical and mechanical properties and the cost as an essential parameter for evaluation, which is considered as another challenge and causes homeowners' decisions to be hesitant, especially when these factors relate to the aesthetic criteria.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Assignment of Egyptian Ornamental Stones for Interior and Exterior Building Finishes Using the AHP-TOPSIS Technique

et al. 2022

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The ornamental stones industry has grown progressively in Egypt as the demand has increased for Egyptian decorative stones in indoor and outdoor building spaces. Choosing the most suitable ornamental stone for each purpose and taking the right decisions related to aesthetic and practical performance can be a challenge causing a lot of confusion for homeowners and contractors. Thus, there is a need to define what decorative style you are trying to achieve in order to properly choose the most suitable decorative stone. In this research, some Egyptian ornamental stones were evaluated by combining the analytic hierarchy process (AHP) and the technique for order preference by similarity to ideal solution (TOPSIS). The optimized AHP–TOPSIS comprehensive decision model was implemented on natural materials relevant to ornaments and the finishing purposes of indoor and outdoor buildings. Ten rock types from four Egyptian sites were studied, examined, and analyzed. According to the quality index scheme, grey granite is an ideal ornamental stone that meets indoor and outdoor purposes. Grey granite and black marble have a performance score (Pi) of 0.78 and 0.71, respectively. Serpentine and pink granite were ranked third with a Pi = 0.68. These results provide stakeholders with strategic indicators to select different natural ornamental stones based on the total points assigned to all rock specifications and costs.

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Evaluation of Natural Building Stones’ Characterizations Using Ultrasonic Testing Technique

Cited by 8 publications

References 19 publications

Evaluation of Eco-Friendly Consolidating Treatments in Pugliese Tuff (Gravina Calcarenite) Used in Italian Heritage Buildings

Evaluation of Eco-Friendly Consolidating Treatments in Pugliese Tuff (Gravina Calcarenite) Used in Italian Heritage Buildings

Non-destructive methods applied for in situ mechanical diagnosis: Florentine historical buildings in Pietra Serena

Sustainable Assignment of Egyptian Ornamental Stones for Interior and Exterior Building Finishes Using the AHP-TOPSIS Technique

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